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  • 1.
    Ahola, Markus
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Climate Change in the Baltic Sea2021 Fact Sheet: Baltic Sea Environment Proceedings n°180. HELCOM/Baltic Earth 20212021Rapport (Annet vitenskapelig)
  • 2.
    Aleksija, Neijmane
    et al.
    Statens Veterinärmedicinska Anstalt.
    Jasmine, Stavenow
    Statens Veterinärmedicinska Anstalt.
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Kallunki-Nyström, Jonas
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Hälsa, sjukdomar och dödsorsaker hos marina däggdjur 2020: Resultat från obduktion och provtagning av marina däggdjur som undersökts på SVA2021Rapport (Annet (populærvitenskap, debatt, mm))
    Fulltekst (pdf)
    fulltext
  • 3.
    Andersson, Mathias
    et al.
    Swedish Defence Research Agency (FOI).
    Nöjd, Andreas
    Swedish Defence Research Agency (FOI).
    Kunskapsunderlag om undervattensexplosioner och marina djur2018Rapport (Annet vitenskapelig)
  • 4. Androulakakis, Andreas
    et al.
    Alygizakis, Nikiforos
    Gkotsis, Georgios
    Nika, Maria-Christina
    Nikolopoulou, Varvara
    Bizani, Erasmia
    Chadwick, Elizabeth
    Cincinelli, Alessandra
    Claßen, Daniela
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Dekker, Rene W.R.J.
    Duke, Guy
    Glowacka, Natalia
    Jansman, Hugh A.H.
    Krone, Oliver
    Martellini, Tania
    Movalli, Paola
    Persson, Sara
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    O'Rourke, Emily
    Siebert, Ursula
    Treu, Gabriele
    van den Brink, Nico W.
    Walker, Lee Anthony
    Deaville, Rob
    Slobodnik, Jaroslav
    Thomaidis, Nikolaos S.
    Determination of 56 per- and polyfluoroalkyl substances in top predators and their prey from Northern Europe by LC-MS/MS2022Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 287, s. 131775-131775, artikkel-id 131775Artikkel i tidsskrift (Fagfellevurdert)
  • 5.
    Arcalís-Planas, Anna
    et al.
    Department of Biology, Universitat de Barcelona.
    Sveegaard, Signe
    Department of Bioscience, Aarhus University.
    Karlsson, Olle
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Harding, Karin C.
    Department of Biological and Environmental Sciences, University of Gothenburg.
    Wåhlin, Anna
    Department of Earth Sciences, University of Gothenburg.
    Härkönen, Tero
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Teilmann, Jonas
    Department of Bioscience, Aarhus University.
    Limited use of sea ice by the Ross seal (Ommatophoca rossii), in Amundsen Sea, Antarctica, using telemetry and remote sensing data2015Inngår i: Polar Biology, ISSN 0722-4060, E-ISSN 1432-2056Artikkel i tidsskrift (Fagfellevurdert)
  • 6. Autenrieth, Marijke
    et al.
    Hartmann, Stefanie
    Lah, Ljerka
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Dennis, Alice B.
    Tiedemann, Ralph
    High‐quality whole‐genome sequence of an abundant Holarctic odontocete, the harbour porpoise (Phocoena phocoena)2018Inngår i: Molecular Ecology Resources, ISSN 1755-098X, E-ISSN 1755-0998, Vol. 18, nr 1, s. 1469-1481Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The harbour porpoise (Phocoena phocoena) is a highly mobile cetacean found across the Northern hemisphere. It occurs in coastal waters and inhabits basins that vary broadly in salinity, temperature and food availability. These diverse habitats could drive subtle differentiation among populations, but examination of this would be best conducted with a robust reference genome. Here, we report the first harbour porpoise genome, assembled de novo from an individual originating in the Kattegat Sea (Sweden). The genome is one of the most complete cetacean genomes currently available, with a total size of 2.39 Gb and 50% of the total length found in just 34 scaffolds. Using 122 of the longest scaffolds, we were able to show high levels of synteny with the genome of the domestic cattle (Bos taurus). Our draft annotation comprises 22,154 predicted genes, which we further annotated through matches to the NCBI nucleotide database, GO categorization and motif prediction. Within the predicted genes, we have confirmed the presence of >20 genes or gene families that have been associated with adaptive evolution in other cetaceans. Overall, this genome assembly and draft annotation represent a crucial addition to the genomic resources currently available for the study of porpoises and Phocoenidae evolution, phylogeny and conservation.

  • 7. Autenrieth, Marijke
    et al.
    Havenstein, Katja
    De Cahsan, Binia
    Canitz, Julia
    Benke, Harald
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Pampoulie, Christophe
    Sigurðsson, Guðjón Már
    Siebert, Ursula
    Olsen, Morten Tange
    Biard, Vincent
    Heide-Jørgensen, Mads Peter
    Öztürk, Ayaka Amaha
    Öztürk, Bayram
    Lawson, John W.
    Tiedemann, Ralph
    Genome-wide analysis of the harbour porpoise (Phocoena phocoena) indicates isolation-by-distance across the North Atlantic and potential local adaptation in adjacent waters2023Inngår i: Conservation Genetics, ISSN 1566-0621, E-ISSN 1572-9737Artikkel i tidsskrift (Fagfellevurdert)
  • 8. Authier, Matthieu
    et al.
    Brasseur, Sophie
    Carlén, Ida
    Carlström, Julia
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Evans, Peter
    Fernández, Ruth
    Galatius, Anders
    Gilles, Anita
    Hammond, Philip
    Kaminska, Katarzyna
    Kavanagh, Ailbhe
    Kingston, Allen
    Königson, Sara
    Koschinski, Sven
    Larsen, Finn
    Macleod, Kelly
    Mugerza, Estanis
    Müller, Miriam
    Ojaveer, Henn
    Papaioannou, Eva
    Peltier, Hélène
    Pierce, Graham
    Pusch, Christian
    Ridoux, Vincent
    Santos, Begona
    Sigurðsson, Guðjón
    Tachoires, Stéphanie
    Vinther, Morten
    Woźniczka, Adam
    Königson, Sara ()
    MacLeod, Kelly ()
    Workshop on fisheries Emergency Measures to minimize BYCatch of short-beaked common dolphins in the Bay of Biscay and harbour porpoise in the Baltic Sea (WKEMBYC)2020Rapport (Annet vitenskapelig)
  • 9.
    Barboutis, Christos
    et al.
    Antikythira Bird Observatory, Hellenic Ornithological Society/BirdLife Greece, 52 Ag. Konstantinou Str., GR-10437 Athens, Greece;Department of Biological Applications and Technology, University of Ioannina, GR-45110 Ioanrnina, Greece.
    Bounas, Anastasios
    Department of Biological Applications and Technology, University of Ioannina, GR-45110 Ioanrnina, Greece.
    Navarrete, Elisabeth
    Antikythira Bird Observatory, Hellenic Ornithological Society/BirdLife Greece, 52 Ag. Konstantinou Str., GR-10437 Athens, Greece.
    Fransson, Thord
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Stopover Ecology of the European Turtle Dove (Streptopelia turtur), a Threatened Migratory Bird Species, after the Crossing of an Extended Ecological Barrier2023Inngår i: Birds, ISSN 2673-6004, Vol. 4, nr 2, s. 202-212Artikkel i tidsskrift (Fagfellevurdert)
  • 10.
    Barboutis, Christos
    et al.
    Natural History Museum of Crete, University of Crete, Iraklion, Greece.
    Henshaw, Ian
    Department of Zoology, Stockholm University.
    Kullberg, Cecilia
    Department of Zoology, Stockholm University.
    Nikolopoulou, Stamatina
    Institute of Marine Biology and Genetics, Hellenic Centre for Marine Research, Iraklion, Crete,.
    Fransson, Thord
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Fuelling in front of the barrier — are there age based behavioral differences in Garden Warblers Sylvia borin?2014Inngår i: PeerJ, ISSN 2167-8359Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Garden Warblers Sylvia borin were studied during autumn stopover in Crete before

    crossing the barrier of theMediterranean Sea and the Sahara Desert. Birds followed

    with transmitters show extensive stopover periods, which were longer in first-year

    birds, 16 days, compared with adult birds, 14 days. The distribution of body masses

    frombirds trapped in fig trees were used to estimate the departure body mass and the

    results found indicate that both age categories on average depart with a fuel load close

    to 100% of lean body mass. The movement of transmitter birds shows di

    fferences between

    first-year and adult birds. Adult birds move further away from the release site

    and many also left the study area. Several were found settled outside the study area,

    up to 17 km away, indicating that they regularly make longer stopover movements. It

    is suggested that this might be a result of that they return to a place where they stayed

    during an earlier migration. It was shown that stopover site fidelity exists and nine

    garden warblers were recaptured in the area during a following autumn. The results

    found highlights the importance of stopover areas close to the SaharaDesert.

  • 11. Barboutis, Christos
    et al.
    Larsson, Leo
    Steinholtz, Åsa
    Fransson, Thord
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    From Mediterranean to Scandinavia – timing and body mass condition in four long distance migrants2015Inngår i: Ornis Svecica, ISSN 1102-6812, E-ISSN 2003-2633, Vol. 25, s. 51-58Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In spring, long-distance migrants are considered to adopta time-minimizing strategy to promote early arrival atbreeding sites. The phenology of spring migration wasexamined and compared between two insular stopoversites in Greece and Sweden for Icterine Warbler, WoodWarbler, Spotted Flycatcher and Collared Flycatcher. All  of them migrate due north which means that some proportion of birds that pass through Greece are headingto Scandinavia. The Collared Flycatcher had the earliestand the Icterine Warbler the latest arrival time. Thedifferences in median dates between Greece and Swedenwere 3–4 weeks and the passages in Sweden weregenerally more condensed in time. The average overallspeed estimates were very similar and varied between129 and 137 km/d. In most of the species higher speedestimates were associated with years when birds arrivedlate in Greece. After crossing continental Europe birdsarrive at the Swedish study site with significantly higherbody masses compared to when they arrive in Greece andthis might indicate a preparation for arriving at breedinggrounds with some overload.

    Fulltekst (pdf)
    fulltext
    Fulltekst (pdf)
    fulltext
  • 12.
    Barboutis, Christos
    et al.
    Department of Biological Applications and Technology , University of Ioannina , Ioannina , GR-45110 , Greece;Antikythira Bird Observatory, Hellenic Ornithological Society/BirdLife Greece , Themistokleous 80 , Athens , GR-10681 , Greece.
    Navarrete, Elisabeth
    Antikythira Bird Observatory, Hellenic Ornithological Society/BirdLife Greece , Themistokleous 80 , Athens , GR-10681 , Greece.
    Karris, Georgios
    Lab of Environmental Physics, Energy and Environmental Biology, Department of Environment, Faculty of Environment , Ionian University , Panagoula, GR-29100, Zakynthos , Greece.
    Xirouchakis, Stavros
    Natural History Museum of Crete , University of Crete, University Campus (Knossos) , GR-71409 Heraklion, Crete , Greece.
    Fransson, Thord
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Department of Environmental Research and Monitoring , Swedish Museum of Natural History , , Stockholm , Sweden.
    Bounas, Anastasios
    Department of Biological Applications and Technology , University of Ioannina , Ioannina , , Greece.
    Arriving depleted after crossing of the Mediterranean: obligatory stopover patterns underline the importance of Mediterranean islands for migrating birds2022Inngår i: Animal Migration, E-ISSN 2084-8838, Vol. 9, nr 1, s. 27-36Artikkel i tidsskrift (Fagfellevurdert)
  • 13.
    Berger, Michelle L.
    et al.
    Shaw Institute.
    Shaw, Susan D.
    Shaw Institute.
    Rolsky, Charles B.
    Shaw Institute.
    Chen, Da
    Sun, Jiachen
    Rosing-Asvid, Aqqalu
    Grønlands Naturinstitut.
    Granquist, Sandra Magdalena
    Simon, Malene
    Grønlands Klimaforskningscenter.
    Bäcklin, Britt-Marie
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Roos, Anna Maria
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Alternative and legacy flame retardants in marine mammals from three northern ocean regions2023Inngår i: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 335, s. 122255-122255, artikkel-id 122255Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Flame retardants are globally distributed contaminants that have been linked to negative health effects in humans and wildlife. As top predators, marine mammals bioaccumulate flame retardants and other contaminants in their tissues which is one of many human-imposed factors threatening population health. While some flame retardants, such as the polybrominated diphenyl ethers (PBDE), have been banned because of known toxicity and environmental persistence, limited data exist on the presence and distribution of current-use alternative flame retardants in marine mammals from many industrialized and remote regions of the world. Therefore, this study measured 44 legacy and alternative flame retardants in nine marine mammal species from three ocean regions: the Northwest Atlantic, the Arctic, and the Baltic allowing for regional, species, age, body condition, temporal, and tissue comparisons to help understand global patterns. PBDE concentrations were 100–1000 times higher than the alternative brominated flame retardants (altBFRs) and Dechloranes. 2,2′,4,5,5′-pentabromobiphenyl (BB-101) and hexabromobenzene (HBBZ) were the predominant altBFRs, while Dechlorane-602 was the predominant Dechlorane. This manuscript also reports only the second detection of hexachlorocyclopentadienyl-dibromocyclooctane (HCDBCO) in marine mammals. The NW Atlantic had the highest PBDE concentrations followed by the Baltic and Arctic which reflects greater historical use of PBDEs in North America compared to Europe and greater industrialization of North America and Baltic countries compared to the Arctic. Regional patterns for other compounds were more complicated, and there were significant interactions among species, regions, body condition and age class. Lipid-normalized PBDE concentrations in harbor seal liver and blubber were similar, but HBBZ and many Dechloranes had higher concentrations in liver, indicating factors other than lipid dynamics affect the distribution of these compounds. The health implications of contamination by this mixture of compounds are of concern and require further research.

    Fulltekst (pdf)
    fulltext
  • 14. Bieser, Johannes
    et al.
    Amptmeijer, David J.
    Daewel, Ute
    Kuss, Joachim
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Schrum, Corinna
    The 3D biogeochemical marine mercury cycling model MERCY v2.0 – linking atmospheric Hg to methylmercury in fish2023Inngår i: Geoscientific Model Development, ISSN 1991-959X, E-ISSN 1991-9603, Vol. 16, nr 9, s. 2649-2688Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Mercury (Hg) is a pollutant of global concern. Due to anthropogenic emissions, the atmospheric and surface ocean Hg burden has increased substantially since preindustrial times. Hg emitted into the atmosphere gets transported on a global scale and ultimately reaches the oceans. There it is transformed into highly toxic methylmercury (MeHg) that effectively accumulates in the food web. The international community has recognized this serious threat to human health and in 2017 regulated Hg use and emissions under the UN Minamata Convention on Mercury. Currently, the first effectiveness evaluation of the Minamata Convention is being prepared, and, in addition to observations, models play a major role in understanding environmental Hg pathways and in predicting the impact of policy decisions and external drivers (e.g., climate, emission, and land-use change) on Hg pollution. Yet, the available model capabilities are mainly limited to atmospheric models covering the Hg cycle from emission to deposition. With the presented model MERCY v2.0 we want to contribute to the currently ongoing effort to improve our understanding of Hg and MeHg transport, transformation, and bioaccumulation in the marine environment with the ultimate goal of linking anthropogenic Hg releases to MeHg in seafood.

    Here, we present the equations and parameters implemented in the MERCY model and evaluate the model performance for two European shelf seas, the North and Baltic seas. With the model evaluation, we want to establish a set of general quality criteria that can be used for evaluation of marine Hg models. The evaluation is based on statistical criteria developed for the performance evaluation of atmospheric chemistry transport models. We show that the MERCY model can reproduce observed average concentrations of individual Hg species in water (normalized mean bias: HgT 17 %, Hg0 2 %, MeHg −28 %) in the two regions mentioned above. Moreover, it is able to reproduce the observed seasonality and spatial patterns. We find that the model error for HgT(aq) is mainly driven by the limitations of the physical model setup in the coastal zone and the availability of data on Hg loads in major rivers. In addition, the model error in calculating vertical mixing and stratification contributes to the total HgT model error. For the vertical transport we find that the widely used particle partitioning coefficient for organic matter of log(kd)=5.4 is too low for the coastal systems. For Hg0 the model performance is at a level where further model improvements will be difficult to achieve. For MeHg, our understanding of the processes controlling methylation and demethylation is still quite limited. While the model can reproduce average MeHg concentrations, this lack of understanding hampers our ability to reproduce the observed value range. Finally, we evaluate Hg and MeHg concentrations in biota and show that modeled values are within the range of observed levels of accumulation in phytoplankton, zooplankton, and fish. The model performance demonstrates the feasibility of developing marine Hg models with similar predictive capability to established atmospheric chemistry transport models. Our findings also highlight important knowledge gaps in the dynamics controlling methylation and bioaccumulation that, if closed, could lead to important improvements of the model performance.

    Fulltekst (pdf)
    Bieser et al 2023
  • 15.
    Bignert, Anders
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Ek, Caroline
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Comments Concerning the National Swedish Contaminant Monitoring Programme in Marine Biota, 20172017Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 16.
    Bignert, Anders
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Ek, Caroline
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Comments concerning the National Swedish Contaminant Monitoring Programme in Marine Biota, 2017 (2016 years data)2017Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 17.
    Bignert, Anders
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Comments concerning the national Swedish contaminant monitoring programme in marine biota, 20162016Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 18.
    Bignert, Anders
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Vasileiou, Maria
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Fång, Johan
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Dahlgren, Henrik
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Kylberg, Eva
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Staveley Öhlund, Jill
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Jones, Douglas
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Stenström, Malin
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Berger, Urs
    Stockholms universitet.
    Alsberg, Tomas
    Stockholms universitet.
    Kärsrud, Anne-Sofie
    Stockholms universitet.
    Sundbom, Marcus
    Stockholms universitet.
    Holm, Karin
    Stockholms universitet.
    Eriksson, Ulla
    Stockholms universitet.
    Egebäck, Anna-Lena
    Stockholms universitet.
    Haglund, Peter
    Umeå universitet.
    Kaj, Lennart
    IVL.
    Comments concerning the national Swedish contaminant monitoring programme in marine biota, 20152015Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 19.
    Bignert, Anders
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Eriksson, Ulla
    Stockholm university.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Miller, Aroha
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Consequences of using pooled versus individual samples for designingenvironmental monitoring sampling strategies2014Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, nr 94, s. 177-182Artikkel i tidsskrift (Fagfellevurdert)
  • 20.
    Bignert, Anders
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Helander, Björn
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Monitoring of contaminants and their effects on the common Guillemot and the White-tailed sea eagle2015Inngår i: Journal of Ornithology = Journal fur Ornithologie, ISSN 0021-8375, E-ISSN 1439-0361Artikkel i tidsskrift (Fagfellevurdert)
  • 21.
    Bjurlid, Filip
    et al.
    Örebro universitet.
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Hagberg, J
    Temporal trends of PBDD/Fs, PCDD/Fs, PBDEs and PCBs in ringed seals from the Baltic Sea (Pusa hispida botnica) between 1974 and 20152018Inngår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 616-617, s. 1374-1383Artikkel i tidsskrift (Fagfellevurdert)
  • 22. Bohlin, Johan
    et al.
    Helander, Björn
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Lapplandsfödd havsörnshona häckar i Värmland2017Inngår i: Värmlandsornitologen, Vol. 44, s. 17-Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 23.
    Bohlin, Johan
    et al.
    Länsstyrelsen i Värmland.
    Helander, Björn
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Örnföda. Mest braxen och gädda2014Inngår i: Värmlandsornitologen, Vol. 41, s. 10-13-Artikkel i tidsskrift (Annet (populærvitenskap, debatt, mm))
  • 24.
    Bosco, Laura
    et al.
    The Helsinki Lab of Ornithology, Finnish Museum of Natural History University of Helsinki Helsinki Finland.
    Otterbeck, Andreas
    The Helsinki Lab of Ornithology, Finnish Museum of Natural History University of Helsinki Helsinki Finland.
    Fransson, Thord
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Department of Environmental Research and Monitoring Swedish Museum of Natural History Stockholm Sweden.
    Lindén, Andreas
    Natural Resources Institute Finland (Luke) Helsinki Finland.
    Piha, Markus
    Natural Resources Institute Finland (Luke) Helsinki Finland.
    Lehikoinen, Aleksi
    The Helsinki Lab of Ornithology, Finnish Museum of Natural History University of Helsinki Helsinki Finland.
    Increasing winter temperatures explain body size decrease in wintering bird populations of Northern Europe—But response patterns vary along the spatioclimatic gradient2023Inngår i: Global Ecology and Biogeography, ISSN 1466-822X, E-ISSN 1466-8238, ISSN 1466-822X, Vol. 32, nr 12, s. 2100-2110Artikkel i tidsskrift (Fagfellevurdert)
  • 25.
    Bouchet, Sylvain
    et al.
    Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux, Pau 64000, France.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Björn, Erik
    Department of Chemistry, Umeå University, Umeå 90187, Sweden.
    Tessier, Emmanuel
    Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux, Pau 64000, France.
    Amouroux, David
    Université de Pau et des Pays de l’Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux, Pau 64000, France.
    Mercury Sources and Fate in a Large Brackish Ecosystem (the Baltic Sea) Depicted by Stable Isotopes2023Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Identifying Hg sources to aquatic ecosystems and processes controlling the levels of monomethylmercury (MMHg) is critical for developing efficient policies of Hg emissions reduction. Here we measured Hg concentrations and stable isotopes in sediment, seston, and fishes from the various basins of the Baltic Sea, a large brackish ecosystem presenting extensive gradients in salinity, redox conditions, dissolved organic matter (DOM) composition, and biological activities. We found that Hg mass dependent fractionation (Hg-MDF) values in sediments mostly reflect a mixing between light terrestrial Hg and heavier industrial sources, whereas odd Hg isotope mass independent fractionation (odd Hg-MIF) reveals atmospheric inputs. Seston presents intermediate Hg-MDF and odd Hg-MIF values falling between sediments and fish, but in northern basins, high even Hg-MIF values suggest the preferential accumulation of wet-deposited Hg. Odd Hg-MIF values in fish indicate an overall low extent of MMHg photodegradation due to limited sunlight exposure and penetration but also reveal large spatial differences. The photodegradation extent is lowest in the central basin with recurrent algal blooms due to their shading effect and is highest in the northern, least saline basin with high concentrations of terrestrial DOM. As increased loads of terrestrial DOM are expected in many coastal areas due to global changes, its impact on MMHg photodegradation needs to be better understood and accounted for when predicting future MMHg concentrations in aquatic ecosystems.

  • 26.
    Brault, EK
    et al.
    University of California Santa Cruz.
    Koch, Paul L
    University of California Santa Cruz.
    Costa, Daniel P.
    University of California Santa Cruz.
    McCarthy, Matthew D.
    University of California Santa Cruz.
    Hückstädt, Luis A
    University of California Santa Cruz.
    T. Goetz, Kimberly T
    National Institute of Water and Atmospheric Research, Wellington, New Zealand.
    McMahon, Kelton W.
    University of Rhode Island.
    Goebel, Michael E.
    Southwest Fisheries Science Center, La Jolla, USA.
    Karlsson, Olle
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Teilmann, Jonas
    Aarhus University.
    Harkonen, Tero
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Harding, Karin
    University of Gothenburg.
    Trophic position and foraging ecology of Ross,Weddell, and crabeater seals revealed bycompound-specific isotope analysis2019Inngår i: Marine Ecology Progress Series, ISSN 0171-8630, E-ISSN 1616-1599, Vol. 611Artikkel i tidsskrift (Fagfellevurdert)
  • 27.
    Britt-Marie, Bäcklin
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Sara, Persson
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Suzanne, Faxneld
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Frank, Rigét F.
    Anna, Roos M.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. phD, Curator.
    Temporal and Geographical Variation of Intestinal Ulcers in Grey Seals (Halichoerus grypus) and Environmental Contaminants in Baltic Biota during Four Decades2021Inngår i: Animals, E-ISSN 2076-2615, Vol. 11, nr 10, s. 2968-2968Artikkel i tidsskrift (Fagfellevurdert)
  • 28.
    Bäcklin, Britt-Marie
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Moraeus, Charlotta
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Strömberg, Annika
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Karlsson, Olle
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Härkönen, Tero
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Sälpopulationer och sälhälsa2016Inngår i: HAVET 2015/2016: Om miljötillståndet i svenska havsområden / [ed] Havsmiljöinstitutet, Havsmiljöinstitutet , 2016, s. 116-118Kapittel i bok, del av antologi (Annet vitenskapelig)
  • 29.
    Bäcklin, Britt-Marie
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Moraeus, Charlotta
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Strömberg, Annika
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Stenström, Malin
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Neimanis, Aleksija
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. SVA.
    Undersökning av insamlade sälar från Östersjön 2013/20142015Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 30.
    Bäcklin, Britt-Marie
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Sköld, Martin
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Cervin, Linnea
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Rojas Sepulveda, Yessenia
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Persson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Späcktjocklek hos undersökta gråsälar 2000-20212022Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 31.
    Bäcklin, Britt-Marie
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Strömberg, Annika
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Moraeus, Charlotta
    Härkönen, Tero
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Karlsson, Olle
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Undersökning av sälar insamlade 20152017Rapport (Annet vitenskapelig)
    Abstract [sv]

    Sedan 1970-talet har gråsäl (Halichoerus grypus), knubbsäl (Phoca vitulina) och vikare (Phoca hispida) insamlats och undersökts på Naturhistoriska riksmuseet (NRM). Majoriteten av de undersökta sälarna är gråsälar. Beroende på jakt under 1900-talet och nedsatt reproduktion under århundradets senare del så minskade sälpopulationerna i Östersjön. Under 1970-och 1980-talet noterades ett antal sjukliga förändringar som kallades Baltic Seal Disease Complex framför allt hos gråsäl och som misstänktes ha samband med höga halter av miljögifter som PCB och DDT. Förekomsten av flera av dessa förändringar liksom halterna av PCB och DDT har minskat sedan dess. Hos gråsäl har därefter förekomst av tarmsår ökat och minskat, späcktjockleken minskat och förekomst av leverparasiter ökat.

    Under år 2015 insamlades och undersöktes sälar och prover från 137 gråsälar, 44 knubbsälar och 27 vikare. I övrigt inrapporterades 196 döda sälar funna på stränder av allmänheten.

    Gråsälspopulationen ökar för närvarande med ca 8% per år och 85% av de undersökta honorna mellan 6-24 år var dräktiga. Knubbsälspopulationerna ökar för närvarande med 7-9% per år. Antal undersökta knubbsälar var visserligen betydligt färre än antal undersökta gråsälar men andel dräktiga honor i motsvarande åldersgrupp var endast 57%. Vikarepopulationen i Bottenviken ökar för närvarande med ca 4,5% per år. Hos vikare inkom endast en könsmogen hona från dräktighetsperioden och hon var dräktig.

    Av de undersökta vikarna var 20 av 27 yngre än 4 år gamla. Två två-åriga vikarhonor hade missbildningar i form av diafragmabråck hos den ena och avsaknad av ett livmoderhorn hos den andra.

     

    Sammanfattningsvis ser hälsosituationen för undersökta gråsälar i Östersjön delvis bättre ut än tidigare och populationstillväxten har varit stabil under de senaste 15 åren. Antal undersökta knubbsälar och vikare är för få för att redovisa patologiska trender men undersökta knubbsälar visade tendens till låg dräktighetsfrekvens som bör studeras närmare. De båda västliga bestånden av knubbsälar drabbades av epidemier 1988, 2002 och 2014 och populationstillväxten hos dessa bestånd har minskat efter 2002. Däremot har populationen av knubbsälar på östkusten visat på en stadig populationstillväxt sedan 1970-talet. Vikarepopulationen i Bottniska viken har en fortsatt låg tillväxt.

    Fulltekst (pdf)
    fulltext
  • 32.
    Campeau, Audrey
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära. Depatment of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden.
    Eklöf, Karin
    Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Åkerblom, Staffan
    Statistiska centralbyrån (SCB), Statistic Sweden, Stockholm, Sweden.
    Yuan, Shengliu
    Water Quality Center, Trent University, Peterborough, Ontario, Canada.
    Hintelmann, Holger
    Water Quality Center, Trent University, Peterborough, Ontario, Canada.
    Bieroza, Magdalena
    Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Köhler, Stephan
    Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Zdanowicz, Christian
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Geovetenskapliga sektionen, Institutionen för geovetenskaper, Luft-, vatten- och landskapslära.
    Sources of riverine mercury across the Mackenzie River Basin; inferences from a combined Hg C isotopes and optical properties approach2022Inngår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 806, s. 150808-150808, artikkel-id 150808Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Arctic terrestrial environment harbors a complex mosaic of mercury (Hg) and carbon (C) reservoirs, some of which are rapidly destabilizing in response to climate warming. The sources of riverine Hg across the Mackenzie River basin (MRB) are uncertain, which leads to a poor understanding of potential future release. Measurements of dissolved and particulate mercury (DHg, PHg) and carbon (DOC, POC) concentration were performed, along with analyses of Hg stable isotope ratios (incl. ∆199Hg, d202Hg), radiocarbon content (∆14C) and optical properties of DOC of river water. Isotopic ratios of Hg revealed a closer association to terrestrial Hg reservoirs for the particulate fraction, while the dissolved fraction was more closely associated with atmospheric deposition sources of shorter turnover time. There was a positive correlation between the ∆14C-OC and riverine Hg concentration for both particulate and dissolved fractions, indicating that waters transporting older-OC (14C-depleted) also contained higher levels of Hg. In the dissolved fraction, older DOC was also associated with higher molecular weight, aromaticity and humic content, which are likely associated with higher Hg-binding potential. Riverine PHg concentration increased with turbidity and SO4 concentration. There were large contrasts in Hg concentration and OC age and quality among the mountain and lowland sectors of the MRB, which likely reflect the spatial distribution of various terrestrial Hg and OC reservoirs, including weathering of sulfate minerals, erosion and extraction of coal deposits, thawing permafrost, forest fires, peatlands, and forests. Results revealed major differences in the sources of particulate and dissolved riverine Hg, but nonetheless a common positive association with older riverine OC. These findings reveal that a complex mixture of Hg sources, supplied across the MRB, will contribute to future trends in Hg export to the Arctic Ocean under rapid environmental changes.

  • 33.
    Campeau, Aydrey
    et al.
    Uppsala University.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Martma, T
    Tallinn University of Technology.
    Åkeblom, Staffan
    Statistic Sweden.
    Zdanowicz, Christian
    Uppsala University.
    Controls on the 14C Content of Dissolved and Particulate Organic Carbon Mobilized Across the Mackenzie River Basin, Canada2020Inngår i: Global Biogeochemical Cycles, ISSN 0886-6236, E-ISSN 1944-9224, Vol. 34, nr 12Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Mackenzie River Basin (MRB) delivers large quantities of organic carbon (OC) into the Arctic Ocean, with significant implications for the global C budgets and ocean biogeochemistry. The amount and properties of OC in the Mackenzie River's delta have been well monitored in the last decade, but the spatial variability in OC sources transported by its different tributaries is still unclear. Here we present new data on the radiocarbon (14C) content of dissolved and particulate OC (Δ14C‐DOC and Δ14C‐POC) across the mainstem and major tributaries of the MRB, comprising 19 different locations, to identify factors controlling spatial patterns in riverine OC sources. The Δ14C‐DOC and Δ14C‐POC varied across a large range, from −179.9‰ to 62.9‰, and −728.8‰ to −9.0‰, respectively. Our data reveal a positive spatial coupling between the Δ14C of DOC and POC across the MRB, whereby the most 14C‐depleted waters were issued from the mountainous west bank of the MRB. This 14C‐depleted DOC and POC likely originates from a combination of petrogenic sources, connected with the presence of kerogens in the bedrock, and biogenic sources, mobilized by thawing permafrost. Our analysis also reveals intriguing relationships between Δ14C of DOC and POC with turbidity, water stable isotope ratio and catchment elevation, indicating that hydrology and geomorphology are key to understanding riverine OC sources in this landscape. A closer examination of the specific mechanisms giving rise to these relationships is recommended. For now, this study provides a road map of the key OC sources in this rapidly changing river basin.

    Fulltekst (pdf)
    Campeau et al 2020
  • 34.
    Capo, Eric
    et al.
    Umeå University, Department of Chemistry.
    Bravo, Andrea G.
    Institut de Ciències del Mar.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bertilsson, Stefan
    Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment.
    Pinhassi, Jarone
    Linnaeus University, Centre for Ecology and Evolution in Microbial Model Systems.
    Feng, Caiyan
    Umeå University, Department of Chemistry.
    Andersson, Anders F.
    KTH Royal Institute of Technology, Department of Gene Technology.
    Buck, Moritz
    Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment.
    Björn, Erik
    Umeå University, Department of Chemistry.
    Deltaproteobacteria andSpirochaetes-Like Bacteria AreAbundant Putative MercuryMethylators in Oxygen-DeficientWater and Marine Particles in theBaltic Sea2020Inngår i: Frontiers in Microbiology, E-ISSN 1664-302X, s. 1-11, artikkel-id 574080Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Methylmercury (MeHg), a neurotoxic compound biomagnifying in aquatic food webs, can be a threat to human health via fish consumption. However, the compositionand distribution of the microbial communities mediating the methylation of mercury (Hg) to MeHg in marine systems remain largely unknown. In order to fill this knowledge gap, we used the Baltic Sea Reference Metagenome (BARM) dataset to study the abundance and distribution of the genes involved in Hg methylation (the hgcAB gene cluster). We determined the relative abundance of the hgcAB genes and their taxonomic identity in 81 brackish metagenomes that cover spatial,seasonal and redox variability in the Baltic Sea water column. The hgcAB genes were predominantly detected in anoxic water, but some hgcAB genes were alsodetected in hypoxic and normoxic waters. Phylogenetic analysis identified putative Hg methylators within Deltaproteobacteria, in oxygen-deficient water layers, but also Spirochaetes-like and Kiritimatiellaeota-like bacteria. Higher relative quantities of hgcAB genes were found in metagenomes from marine particles compared to free-living communities in anoxic water, suggesting that such particles are hotspot habitats for Hg methylators in oxygen-depleted seawater. Altogether, our work unveils the diversityof the microorganisms with the potential to mediate MeHg production in the BalticSea and pinpoint the important ecological niches for these microorganisms within themarine water column.

  • 35.
    Capo, Eric
    et al.
    Department of Chemistry Umeå University Umeå Sweden;Department of Aquatic Sciences and Assessment SLU Uppsala Uppsala Sweden.
    Broman, Elias
    Department of Ecology, Environment and Plant Sciences Stockholm University Stockholm Sweden;Baltic Sea Centre Stockholm University Stockholm Sweden.
    Bonaglia, Stefano
    Department of Ecology, Environment and Plant Sciences Stockholm University Stockholm Sweden;Department of Marine Sciences University of Gothenburg Gothenburg Sweden.
    Bravo, Andrea G.
    Department of Marine Biology and Oceanography Institute of Marine Sciences, Spanish National Research Council (CSIC) Barcelona Spain.
    Bertilsson, Stefan
    Department of Aquatic Sciences and Assessment SLU Uppsala Uppsala Sweden.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Swedish Museum of Natural History.
    Pinhassi, Jarone
    Centre for Ecology and Evolution in Microbial Model Systems ‐ EEMiS Linnaeus University Kalmar Sweden.
    Lundin, Daniel
    Centre for Ecology and Evolution in Microbial Model Systems ‐ EEMiS Linnaeus University Kalmar Sweden.
    Buck, Moritz
    Department of Aquatic Sciences and Assessment SLU Uppsala Uppsala Sweden.
    Hall, Per O. J.
    Department of Marine Sciences University of Gothenburg Gothenburg Sweden.
    Nascimento, Francisco J. A.
    Department of Ecology, Environment and Plant Sciences Stockholm University Stockholm Sweden;Baltic Sea Centre Stockholm University Stockholm Sweden.
    Björn, Erik
    Department of Chemistry Umeå University Umeå Sweden.
    Oxygen‐deficient water zones in the Baltic Sea promote uncharacterized Hg methylating microorganisms in underlying sediments2022Inngår i: Limnology and Oceanography, ISSN 0024-3590, E-ISSN 1939-5590, Vol. 67, s. 135-146Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Human-induced expansion of oxygen-deficient zones can have dramatic impacts on marine systems and itsresident biota. One example is the formation of the potent neurotoxic methylmercury (MeHg) that is mediated bymicrobial methylation of inorganic divalent Hg (HgII) under oxygen-deficient conditions. A negative consequenceof the expansion of oxygen-deficient zones could be an increase in MeHg production due to shifts in microbialcommunities in favor of microorganisms methylating Hg. There is, however, limited knowledge about Hg-methylatingmicrobes, i.e., those carrying hgc genes critical for mediating the process, from marine sediments. Here, weaim to study the presence of hgc genes and transcripts in metagenomes and metatranscriptomes from four surfacesediments with contrasting concentrations of oxygen and sulfide in the Baltic Sea. We show that potential Hgmethylators differed among sediments depending on redox conditions. Sediments with an oxygenated surface featuredhgc-like genes and transcripts predominantly associated with uncultured Desulfobacterota (OalgD group)and Desulfobacterales (including Desulfobacula sp.) while sediments with a hypoxic-anoxic surface included hgccarryingVerrucomicrobia, unclassified Desulfobacterales, Desulfatiglandales, and uncharacterized microbes. Ourdata suggest that the expansion of oxygen-deficient zones in marine systems may lead to a compositional changeof Hg-methylating microbial groups in the sediments, where Hg methylators whose metabolism and biology havenot yet been characterized will be promoted and expand.

  • 36.
    Capo, Eric
    et al.
    Umeå University.
    Caiyan, Feng
    Umeå University.
    Bravo, Andrea G.
    Institute of Marine Sciences, Spanish National Research Council (CSIC).
    Bertilsson, Stefan
    Swedish University of Agricultural Sciences,.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Pinhassi, Jarone
    Linnaeus University.
    Buck, Moritz
    Swedish University of Agricultural Sciences,.
    Karlsson, Camilla
    Linnaeus University.
    Hawkes, Jeffrey
    Uppsala University.
    Björn, Erik
    Umeå University.
    Expression Levels of hgcAB Genes and Mercury Availability Jointly Explain Methylmercury Formation in Stratified Brackish Waters2022Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Neurotoxic methylmercury (MeHg) is formed by microbial methylation of inorganic divalent Hg (HgII) and constitutes severe environmental and human health risks. The methylation is enabled by hgcA and hgcB genes, but it is not known if the associated molecular-level processes are rate-limiting or enable accurate prediction of MeHg formation in nature. In this study, we investigated the relationships between hgc genes and MeHg across redox-stratified water columns in the brackish Baltic Sea. We showed, for the first time, that hgc transcript abundance and the concentration of dissolved HgII-sulfide species were strong predictors of both the HgII methylation rate and MeHg concentration, implying their roles as principal joint drivers of MeHg formation in these systems. Additionally, we characterized the metabolic capacities of hgc+ microorganisms by reconstructing their genomes from metagenomes (i.e., hgc+ MAGs), which highlighted the versatility of putative HgII methylators in the water column of the Baltic Sea. In establishing relationships between hgc transcripts and the HgII methylation rate, we advance the fundamental understanding of mechanistic principles governing MeHg formation in nature and enable refined predictions of MeHg levels in coastal seas in response to the accelerating spread of oxygen-deficient zones.

  • 37. Carlén, Ida
    et al.
    Thomas, Len
    Carlström, Julia
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Amundin, Mats
    Teilmann, Jonas
    Tregenza, Nick
    Tougaard, Jakob
    Koblitz, Jens C
    Sveegaard, Signe
    Wennerberg, Daniel
    Loisa, Olli
    Dähne, Michael
    Brundiers, Katharina
    Kosecka, Monika
    Kyhn, Line A
    Tiberi Ljungqvist, Cinthia
    Pawliczka, Iwona
    Koza, Radomil
    Arciszewski, Bartlomiej
    Galatius, Anders
    Jabbusch, Martin
    Laaksonlaita, Jussi
    Niemi, Jussi
    Lyytinen, Sami
    Gallus, Anja
    Benke, Harald
    Blankett, Penina
    Skóra, Krzysztof E
    Acevedo-Gutiérrez, Alejandro
    Basin-scale distribution of harbour porpoises in the Baltic Sea provides basisfor effective conservation actions2018Inngår i: Biological Conservation, ISSN 0006-3207, E-ISSN 1873-2917, Vol. 226, s. 42-53Artikkel i tidsskrift (Fagfellevurdert)
  • 38.
    Celemín, Enrique
    et al.
    University of Potsdam, Institute of Biochemistry and Biology, Evolutionary Biology & Systematic Zoology Potsdam Germany.
    Autenrieth, Marijke
    University of Potsdam, Institute of Biochemistry and Biology, Evolutionary Biology & Systematic Zoology Potsdam Germany.
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning. Swedish Museum of Natural History Stockholm Sweden.
    Pawliczka, Iwona
    Prof. Krzysztof Skóra Hel Marine Station, Faculty of Oceanography and Geography University of Gdansk Hel Poland.
    Quintela, María
    Institute of Marine Research Bergen Norway.
    Lindstrøm, Ulf
    Institute of Marine Research Tromsø Norway;UiT The Arctic University of Norway Tromsø Norway.
    Benke, Harald
    Deutsches Meeresmuseum Stralsund Germany.
    Siebert, Ursula
    Institute for Terrestrial and Aquatic Wildlife Research (ITAW), University of Veterinary Medicine Hannover Foundation Büsum Germany.
    Lockyer, Christina
    Age Dynamics Kongens Lyngby Denmark.
    Berggren, Per
    School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne UK.
    Özturk, A. Amaha
    Marine Biology Department, Faculty of Fisheries Istanbul University Istanbul Turkey.
    Özturk, Bayram
    Marine Biology Department, Faculty of Fisheries Istanbul University Istanbul Turkey.
    Lesage, Véronique
    Fisheries and Oceans Canada Maurice Lamontagne Institute Mont‐Joli Quebec Canada.
    Tiedemann, Ralph
    University of Potsdam, Institute of Biochemistry and Biology, Evolutionary Biology & Systematic Zoology Potsdam Germany.
    Evolutionary history and seascape genomics of Harbour porpoises (Phocoena phocoena) across environmental gradients in the North Atlantic and adjacent waters2023Inngår i: Molecular Ecology Resources, ISSN 1755-098X, E-ISSN 1755-0998Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The Harbour porpoise (Phocoena phocoena) is a highly mobile cetacean species primarily occurring in coastal and shelf waters across the Northern hemisphere. It inhabits heterogeneous seascapes broadly varying in salinity and temperature. Here, we produced 74 whole genomes at intermediate coverage to study Harbour porpoise's evolutionary history and investigate the role of local adaptation in the diversification into subspecies and populations. We identified ~6 million high quality SNPs sampled at eight localities across the North Atlantic and adjacent waters, which we used for population structure, demographic and genotype–environment association analyses. Our results suggest a genetic differentiation between three subspecies (P.p. relicta, P.p. phocoena and P.p. meridionalis), and three distinct populations within P.p. phocoena: Atlantic, Belt Sea and Proper Baltic Sea. Effective population size and Tajima's D suggest population contraction in Black Sea and Iberian porpoises, but expansion in the P.p. phocoena populations. Phylogenetic trees indicate post-glacial colonization from a southern refugium. Genotype–environment association analysis identified salinity as major driver in genomic variation and we identified candidate genes putatively underlying adaptation to different salinity. Our study highlights the value of whole genome resequencing to unravel subtle population structure in highly mobile species, shows how strong environmental gradients and local adaptation may lead to population differentiation, and how neutral and adaptive markers can give different perspectives on population subdivision. The results have great conservation implications as we found inbreeding and low genetic diversity in the endangered Black Sea subspecies and identified the critically endangered Proper Baltic Sea porpoises as a separate population.

    Fulltekst (pdf)
    fulltext
  • 39. Christensen-Dalsgaard, Signe
    et al.
    Anker-Nilssen, Tycho
    Crawford, Rory
    Bond, Alexander
    Már Sigurðsson, Guðjón
    Glemarec, Gildas
    Snær Hansen, Erpur
    Kadin, Martina
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Kindt-Larsen, Lotte
    Mallory, Mark
    Ravn Merkel, Flemming
    Petersen, Aevar
    Provencher, Jennifer
    Bærum, Kim Magnus
    What’s the catch with lumpsuckers? A North Atlantic study of seabird bycatch in lumpsucker gillnet fisheries2019Inngår i: Biological Conservation, ISSN 0006-3207, E-ISSN 1873-2917, Vol. 240, artikkel-id 108278Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Worldwide, incidental bycatch in fisheries is a conservation threat to many seabird species. Although knowledge on bycatch of seabirds has increased in the last decade, most stems from longline fisheries and the impacts of coastal gillnet fisheries are poorly understood. Gillnet fishing for North Atlantic lumpsucker (Cyclopterus lumpus) is one such fishery. We collated and synthesized the available information on seabird bycatch in lumpsucker gillnet fisheries across the entire geographical range to estimate and infer the magnitude of their impact on the affected seabird populations. Most birds killed were diving ducks, cormorants and auks, and each year locally high numbers of seabirds were taken as bycatch. We found large differences in bycatch rates among countries. The estimated mean bycatch in Iceland was 2.43 birds/trip, while the estimates in Norway was 0.44 and 0.39 birds/trip, respectively. The large disparities between estimates might reflect large spatial differences in bycatch rates, but could partly also arise due to distinctions in data recorded by onboard inspectors (Iceland), self-administered registration (Norway) and direct observations by cameras (Denmark). We show that lumpsucker gillnet fisheries might pose a significant risk to some populations of diving seabirds. However, a distinct data deficiency on seabird bycatch in terms of spatio-temporal coverage and the age and origins of the birds killed, limited our abilities to fully assess the extent and population consequences of the bycatch. Our results highlight the need for a joint effort among countries to standardize monitoring methods to better document the impact of these fisheries on seabirds.

    Fulltekst (pdf)
    Christensen-Dalsgaard-et-al_BycatchLumpsuckerFishery_2019
  • 40. Dahlberg, Anna-Karin
    et al.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Legradi, Jessica
    Legler, Juliette
    Asplund, Lillemor
    Anthropogenic and naturally produced brominated substances in Baltic herring (Clupea harengus membras) from two sites in the Baltic Sea.2016Inngår i: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 144Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In the eutrophicated Baltic Sea, several naturally produced hydroxylated polybrominated diphenyl ethers (OH-PBDEs) have been found in marine biota. OH-PBDEs are toxic to adult and developing zebrafish and shown to be potent disruptors of oxidative phosphorylation (OXPHOS). Disturbed OXPHOS can result in altered energy metabolism and weight loss. In herring, the concentration of OH-PBDEs (i.e. 2'-OH-BDE68 and 6-OH-BDE47) has increased during the period 1980-2010 in the Baltic Proper. Over the same time period, the condition and fat content in Baltic herring have decreased. Given the toxicity and increasing trends of OH-PBDEs in Baltic herring it is important to further assess the exposure to OH-PBDEs in Baltic herring. In this study, the concentrations of OH-PBDEs and related brominated substances i.e. polybrominated phenols (PBPs), polybrominated anisoles (PBAs), methoxylated polybrominated diphenyl ethers (MeO-PBDEs) and polybrominated diphenyl ethers (PBDEs) were measured in herring sampled in the northern Baltic Proper (Askö, n = 12) and the southern Bothnian Sea (Ängskärsklubb, n = 12). The geometric mean (GM) concentrations (ng/g l.w.) at Askö and Ängskärsklubb were; Σ2PBPs: 4.3 and 9.6, Σ(2)PBAs: 34 and 20, Σ(6)OH-PBDEs: 9.4 and 10, Σ(7)MeO-PBDEs: 42 and 150, Σ(6)PBDEs: 54 and 27, respectively. 6-OH-BDE47 dominated the OH-PBDE profile and comprised 87% (Askö) and 91% (Ängskärsklubb) of the ΣOH-PBDEs. At Ängskärsklubb the mean concentration of ΣMeO-PBDEs (150 ng/g l.w.) was 15 times higher than ΣOH-PBDEs. As other fish species are known to metabolically transform MeO-PBDEs to OH-PBDEs, high levels of MeO-PBDEs can be of concern as a precursor for more toxic OH-PBDEs in herring and their roe.

  • 41.
    Dahlgren, Henrik
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Danielsson, Sara
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Kylberg, Eva
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Vasileiou, Maria
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Staveley Öhlund, Jill
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Berger, Urs
    Stockholm University.
    Borg, Hans
    Stockholm University.
    Eriksson, Ulla
    Stockholm University.
    Holm, Karin
    Stockholm University.
    Egebäck, Anna-Lena
    Stockholm University.
    Haglund, Peter
    Umeå University.
    Övervakning av metaller och organiska miljögifter i marin biota, 20142014Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 42. Dalerum, Fredrik
    et al.
    Hellström, Peter
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Miranda, Maria
    Nyström, Jesper
    Ekenstedt, Johan
    Angerbjörn, Anders
    Network topology of stable isotope interactions in a sub-arctic raptor guild2016Inngår i: Oecologia, ISSN 0029-8549, E-ISSN 1432-1939, Vol. 182, nr 2, s. 511-518Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Predation is an ecologically important process, and intra-guild interactions may substantially influence the ecological effects of predator species. Despite a rapid expansion in the use of mathematical graph theory to describe trophic relations, network approaches have rarely been used to study interactions within predator assemblages. Assemblages of diurnal raptors are subject to substantial intra- and interspecific competition. Here we used the novel approach of applying analyzes based on network topology to species-specific data on the stable isotopes 13C and 15N in feathers to evaluate patterns of relative resource utilization within a guild of diurnal raptors in northern Sweden. Our guild consisted of the golden eagle (Aquila chrysaetos), the gyrfalcon (Falco rusticolus), the peregrine falcon (Falco peregrinus) and the rough-legged buzzard (Buteo lagopus). We found a modular trophic interaction structure within the guild, but the interactions were less nested than expected by chance. These results suggest low redundancy and hence a strong ecological importance of individual species. Our data also suggested that species were less connected through intra-guild interactions than expected by chance. We interpret our results as a convergence on specific isotope niches, and that body size and different hunting behaviour may mediate competition within these niches. We finally highlight that generalist predators could be ecologically important by linking specialist predator species with disparate dietary niches.

  • 43.
    Danielsson, Sara
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Benskin, Jonathan
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bizkarguenaga, Ekhine
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    de Wit, Cynthia
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Egebäck, Anna-Lena
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Eriksson, Ulla
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Hjelmquist, Pär
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Johansson, Ann-Marie
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Jones, Douglas
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Kruså, Martin
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Kylberg, Eva
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Mechedal, Jan
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Sundbom, Marcus
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Distribution and conversions of metal- and POP concentrations among various tissues in herring2018Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 44.
    Danielsson, Sara
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Ek, Caroline
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Pütz Winkens, Kerstin
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    The Swedish National Monitoring Programme for Contaminants in marine biota (until 2017 year's data) - Temporal trends and spatial variations.2019Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
    Download (pdf)
    bilaga
  • 45.
    Danielsson, Sara
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Dahlgren, Henrik
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Kylberg, Eva
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Jones, Douglas
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Sundbom, Marcus
    Stockholms universitet.
    Carbon and nitrogen stable isotopes within the Swedish national monitoring of contaminants in marine biota2015Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 46.
    Danielsson, Sara
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Nyberg, Elisabeth
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Vasileiou, Maria
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Bignert, Anders
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Contaminants in fish from potentially polluted sitesalong the Swedish coast with the nationalmonitoring programme as reference2014Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    fulltext
  • 47.
    Danielsson, Sara
    et al.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Soerensen, Anne L
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    The Swedish National Monitoring Programme for Contaminants in Marine Biota (until 2018 year’s data) - Temporal trends and spatial variations2020Rapport (Annet vitenskapelig)
    Fulltekst (pdf)
    Report
    Download (pdf)
    appendix
  • 48. Dastoor, Ashu
    et al.
    Angot, Hélène
    Bieser, Johannes
    Christensen, Jesper H.
    Douglas, Thomas A.
    Heimbürger-Boavida, Lars-Eric
    Jiskra, Martin
    Mason, Robert P.
    McLagan, David S.
    Obrist, Daniel
    Outridge, Peter M.
    Petrova, Mariia V.
    Ryjkov, Andrei
    St. Pierre, Kyra A.
    Schartup, Amina T.
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Toyota, Kenjiro
    Travnikov, Oleg
    Wilson, Simon J.
    Zdanowicz, Christian
    Arctic mercury cycling2022Inngår i: Nature Reviews Earth & Environment, E-ISSN 2662-138XArtikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Anthropogenic mercury (Hg) emissions have driven marked increases in Arctic Hg levels, which are now being impacted by regional warming, with uncertain ecological consequences. This Review presents a comprehensive assessment of the present-day total Hg mass balance in the Arctic. Over 98% of atmospheric Hg is emitted outside the region and is transported to the Arctic via long-range air and ocean transport. Around two thirds of this Hg is deposited in terrestrial ecosystems, where it predominantly accumulates in soils via vegetation uptake. Rivers and coastal erosion transfer about 80 Mg year−1 of terrestrial Hg to the Arctic Ocean, in approximate balance with modelled net terrestrial Hg deposition in the region. The revised Arctic Ocean Hg mass balance suggests net atmospheric Hg deposition to the ocean and that Hg burial in inner-shelf sediments is underestimated (up to >100%), needing seasonal observations of sediment-ocean Hg exchange. Terrestrial Hg mobilization pathways from soils and the cryosphere (permafrost, ice, snow and glaciers) remain uncertain. Improved soil, snowpack and glacial Hg inventories, transfer mechanisms of riverine Hg releases under accelerated glacier and soil thaw, coupled atmosphere–terrestrial modelling and monitoring of Hg in sensitive ecosystems such as fjords can help to anticipate impacts on downstream Arctic ecosystems.

  • 49. Dastoor, Ashu
    et al.
    Wilson, Simon
    Bieser, Johannes
    Muntean, Marilena
    McLagan, David
    Steenhuisen, Frits
    Angot, Hélèn
    Dibble, Theodore
    Mao, Huiting
    Mason, Robert
    Obrist, Daniel
    Ryjkov, Andrei
    Thackray, Colin
    Travnikov, Oleg
    Zhang, Leming
    Christensen, Jesper
    DiMento, Brian
    Douglas, Thomas A.
    Jiskra, Martin
    Kirk, Jane
    Muir, Derek C.G.
    Roberts, Sarah
    Skov, Henrik
    Soerensen, Anne L.
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Toyota, Kenjiro
    Zhang, Yanxu
    Outridge, Peter
    St. Pierre, Kyra
    Zdanowicz, Christian
    Mu, Cuicui
    Sonke, Jeroen
    Trochim, Erin
    Zhang, Tingjun
    Nerentorp Mastromonaco, Michelle
    Heimbürger-Boavida, Lars-Eric
    Petrova, Mariia
    Lamborg, Carl
    Schartup, Amina T.
    Scripps Institution of Oceanography.
    Changes in Arctic mercury levels: emissions sources, pathways and accumulation.2021Inngår i: AMAP Assessment 2021: Mercury in the Arctic / [ed] AMAP, Tromsø, Norway: Arctic Monitoring and Assessment Programme, 2021, s. 63-122Kapittel i bok, del av antologi (Fagfellevurdert)
  • 50.
    de Wit, Cynthia
    et al.
    Stockholms universitet.
    Bossi, Rossana
    Århus universitet.
    Dietz, Rune
    Århus universitet.
    Dreyer, Annekatrin
    Eurofins.
    Faxneld, Suzanne
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Garbus, Svend Erik
    Århus universitet.
    Hellström, Peter
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Koschorreck, Jan
    UBA.
    Lohmann, Nina
    Eurofins.
    Roos, Anna
    Naturhistoriska riksmuseet, Enheten för miljöforskning och övervakning.
    Sellström, Ulla
    Stockholms universitet.
    Sonne, Christian
    Århus universitet.
    Treu, Gabriele
    UBA.
    Vorkamp, Katrin
    Århus universitet.
    Yuan, Bo
    Stockholms universitet.
    Eulaers, Igor
    Organohalogen compounds of emerging concern in Baltic Sea biota: levels, biomagnification potential and comparisons with legacy contaminants.2020Inngår i: Environment International, ISSN 0160-4120, E-ISSN 1873-6750, Vol. 144Artikkel i tidsskrift (Fagfellevurdert)
    Fulltekst (pdf)
    fulltext
1234567 1 - 50 of 357
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