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Rune Dietz

Marine mammal hotspots in the Greenland and Barents Seas

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

DOI

  • Charmain D. Hamilton, Norwegian Polar Institute
  • ,
  • Christian Lydersen, Norwegian Polar Institute
  • ,
  • Jon Aars, Norwegian Polar Institute
  • ,
  • Martin Biuw, Inst Marine Res, Institute of Marine Research - Norway, Fram Ctr
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  • Andrei N. Boltunov, Marine Mammal Res & Expedit Ctr
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  • Erik W. Born, Greentand Inst Nat Resources
  • ,
  • Rune Dietz
  • Lars P. Folkow, UiT Arctic Univ Norway, UiT The Arctic University of Tromso, Fac Bioscences Fisheries & Econ, Dept Arctic & Marine Biol
  • ,
  • Dmitri M. Glazov, Russian Academy of Sciences
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  • Tore Haug, Inst Marine Res, Institute of Marine Research - Norway, Fram Ctr
  • ,
  • Mads Peter Heide-Jorgensen, Greentand Inst Nat Resources
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  • Lisa E. Kettemer, UiT Arctic Univ Norway, UiT The Arctic University of Tromso, Fac Bioscences Fisheries & Econ, Dept Arctic & Marine Biol
  • ,
  • Kristin L. Laidre, Univ Washington, University of Washington Seattle, University of Washington, Appl Phys Lab, Polar Sci Ctr, Greenland Institute of Natural Resources
  • ,
  • Nils Oien, Inst Marine Res, Institute of Marine Research - Norway, Tromso Dept
  • ,
  • Erling S. Nordoy, UiT Arctic Univ Norway, UiT The Arctic University of Tromso, Fac Bioscences Fisheries & Econ, Dept Arctic & Marine Biol
  • ,
  • Audun H. Rikardsen, UiT The Arctic University of Norway, Norwegian Institute of Nature Research
  • ,
  • Aqqalu Rosing-Asvid, Greentand Inst Nat Resources
  • ,
  • Varvara Semenova, Marine Mammal Res & Expedit Ctr
  • ,
  • Olga Shpak, Russian Academy of Sciences
  • ,
  • Signe Sveegaard
  • Fernando Ugarte, Greentand Inst Nat Resources
  • ,
  • Oystein Wiig, University of Oslo
  • ,
  • Kit M. Kovacs, Norwegian Polar Res Inst, Norwegian Polar Institute, Frain Ctr

Environmental change and increasing levels of human activity are threats to marine mammals in the Arctic. Identifying marine mammal hotspots and areas of high species richness are essential to help guide management and conservation efforts. Herein, space use based on biotelemetric tracking devices deployed on 13 species (ringed seal Pusa hispida, bearded seal Erignathus barbatus, harbour seal Phoca vitulina, walrus Odobenus rosmarus, harp seal Pagophilus groenlandicus, hooded seal Cystophora cristata, polar bear Ursus maritimus, bowhead whale Balaena mysticetus, narwhal Monodon monoceros, white whale Delphinapterus leucas, blue whale Balaenoptera musculus, fin whale Balaenoptera physalus and humpback whale Megaptera novaeangliae; total = 585 individuals) in the Greenland and northern Barents Seas between 2005 and 2018 is reported. Getis-Ord G(1)* hotspots were calculated for each species as well as all species combined, and areas of high species richness were identified for summer/autumn (Jun-Dec), winter/spring (Jan- May) and the entire year. The marginal ice zone (MIZ) of the Greenland Sea and northern Barents Sea, the waters surrounding the Svalbard Archipelago and a few Northeast Greenland coastal sites were identified as key marine mammal hotspots and areas of high species richness in this region. Individual hotspots identified areas important for most of the tagged animals, such as common resting, nursing, moulting and foraging areas. Location hotspots identified areas heavily used by segments of the tagged populations, including denning areas for polar bears and foraging areas. The hotspots identified herein are also important habitats for seabirds and fishes, and thus conservation and management measures targeting these regions would benefit multiple groups of Arctic animals.

OriginalsprogEngelsk
TidsskriftMarine Ecology Progress Series
Vol/bind659
Sider (fra-til)3-28
Antal sider26
ISSN0171-8630
DOI
StatusUdgivet - feb. 2021

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