Browsing Brage IMR by Author "Krafft, Bjørn Arne"
Now showing items 41-47 of 47
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South Orkney Island 2016 Antarctic krill and ecosystem monitoring
Krafft, Bjørn Arne; Skaret, Georg; Krag, Ludvig Ahm; Rustand, Torborg; Pedersen, Ronald (CCAMLR;WG-EMM-16/P03, Conference object, 2016) -
Spatial structuring in early life stage fish diversity in the Scotia Sea region of the Southern Ocean
Dornan, Tracey; Knutsen, Tor; Krafft, Bjørn Arne; Kvalsund, Merete; Mateos-Rivera, Alejandro; Tarling, Geraint A.; Wienerroither, Rupert; Hill, Simeon L. (Peer reviewed; Journal article, 2023)The fish community of the Scotia Sea is diverse and plays key roles in Antarctic food webs and biogeochemical cycling. However, knowledge of the spatial and community structure of their early life stages is limited, ... -
Standing stock of Antarctic krill (Euphausia superba Dana, 1850) (Euphausiacea) in the Southwest Atlantic sector of the Southern Ocean, 2018-19
Krafft, Bjørn Arne; Macaulay, Gavin; Skaret, Georg; Knutsen, Tor; Bergstad, Odd A; Lowther, Andrew; Huse, Geir; Fielding, Sophie; Trathan, Philip; Murphy, Eugene; Choi, Seok-Gwan; Chung, Sangdeok; Han, Inwoo; Lee, Kyounghoon; Zhao, Xianyong; Wang, Xinliang; Ying, Yiping; Yu, Xiaotao; Demianenko, Kostiantyn; Podhornyi, Viktor; Vishnyakova, Karina; Pshenichnov, Leonid; Chuklin, Andrii; Shyshman, Hanna; Cox, Martin J; Reid, Keith; Watters, George M; Reiss, Christian S; Hinke, Jefferson T; Arata, Javier; Godø, Olav R; Hoem, Nils (Peer reviewed; Journal article, 2021)Estimates of the distribution and density of Antarctic krill (Euphausia superba Dana, 1850) were derived from a large-scale survey conducted during the austral summer in the Southwest Atlantic sector of the Southern Ocean ... -
Summer distribution and demography of Antarctic krill Euphausia superba Dana, 1852 (Euphausiacea) at the South Orkney Islands, 2011–2015
Krafft, Bjørn Arne; Knutson, T; Krag, Ludvig Ahm; Jensen, Knut Helge; Skaret, Georg; Krakstad, Jens-Otto; Larsen, Stuart; Melle, Webjørn Raunsgård; Iversen, Svein Arnholt; Godø, Olav Rune (Journal article; Peer reviewed, 2018)We carried out a survey of Antarctic krill (Euphausia superbaDana, 1850) from 2011 to 2015 to establish a long-term, time-series dataset of distribution, abundance, and demography for this species in the South Orkney Islands ... -
Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data
Hill, Simeon; Atkinson, Angus; Darby, Chris; Fielding, Sofie; Krafft, Bjørn Arne; Godø, Olav Rune; Skaret, Georg; trathan, phil; Watkins, J (;WG-EMM-15/28, Research report, 2015)We present a novel index of Antarctic krill biomass in CCAMLR subareas 48.1 to 48.4, based on data from scientific nets and covering the years between 2000 and 2011. The annual biomass variation was significant (CV=73%) ... -
Using vessel acoustics to detect diving patterns of krill foraging predators automatically: development of a novel method for quantifying impact of krill fishing on seals and penguins
Klevjer, Thor Aleksander; Krafft, Bjørn Arne; Godø, Olav Rune (;WG-EMM-15/25, Research report, 2015-06-20)The aim of this work was to assess the possibilities of automatically generating a dataset of dive behaviour of air-breathing predators, based on acoustic data from a monitoring survey and from commercial krill fishing ... -
Utilising IPCC assessments to support the ecosystem approach to fisheries management within a warming Southern Ocean
Cavanagh, Rachel D.; Trathan, Phil N.; Hill, Simeon L.; Melbourne-Thomas, Jess; Meredith, Michael P.; Hollyman, Philip; Krafft, Bjørn Arne; MC Muelbert, Monica; Murphy, Eugene J.; Sommerkorn, Martin; Turner, John; Grant, Susie M. (Peer reviewed; Journal article, 2021)Southern Ocean marine ecosystems are highly vulnerable to climate-driven change, the impacts of which must be factored into conservation and management. The Commission for the Conservation of Antarctic Marine Living Resources ...