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Bjørn A. Krafft
Researcher at Norwegian Polar Institute
Publications - 50
Citations - 1259
Bjørn A. Krafft is an academic researcher from Norwegian Polar Institute. The author has contributed to research in topics: Antarctic krill & Euphausia. The author has an hindex of 19, co-authored 46 publications receiving 1000 citations. Previous affiliations of Bjørn A. Krafft include SINTEF & Norwegian University of Life Sciences.
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Journal ArticleDOI
Impact of climate change on Antarctic krill
Hauke Flores,Hauke Flores,Angus Atkinson,So Kawaguchi,Bjørn A. Krafft,Gennadi Milinevsky,Stephen Nicol,Christian S. Reiss,Geraint A. Tarling,R. Werner,E. Bravo Rebolledo,V. Cirelli,Janine Cuzin-Roudy,Sophie Fielding,J. J. Groeneveld,Matilda Haraldsson,A. Lombana,Enrique Marschoff,Bettina Meyer,E. A. Pakhomov,Emilce Rombolá,Katrin Schmidt,Volker Siegel,Mathias Teschke,H. Tonkes,Jean-Yves Toullec,Philip N. Trathan,Nelly Tremblay,A. P. Van de Putte,J.A. van Franeker,Thorsten Werner +30 more
TL;DR: In this article, the authors review the overall impact of climate change on krill and Antarctic ecosystems, discuss implications for an ecosystem-based fisheries management approach and identify critical knowledge gaps.
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KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016
Angus Atkinson,Simeon L. Hill,Evgeny A. Pakhomov,Volker Siegel,Ricardo Anadón,Sanae Chiba,Kendra L. Daly,Rod Downie,Sophie Fielding,Peter T. Fretwell,Laura Gerrish,Graham W. Hosie,Mark Jessopp,So Kawaguchi,Bjørn A. Krafft,Valerie J. Loeb,Jun Nishikawa,Helen J. Peat,Christian S. Reiss,Robin M. Ross,Langdon B. Quetin,Katrin Schmidt,Deborah K. Steinberg,Roshni C. Subramaniam,Geraint A. Tarling,Peter Ward +25 more
TL;DR: An updated version of KRILLBASE is provided that contains data from 15 194 net hauls, including 12 758 with krill abundance data and 9726 with salp abundance data, and illustrates the seasonal, inter-annual, regional and depth coverage of sampling, and provides both circumpolar- and regional-scale distribution maps.
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Distribution of sex and age groups of ringed seals Pusa hispida in the fast-ice breeding habitat of Kongsfjorden, Svalbard
TL;DR: The size of adult males was correlated with their testosterone levels, but it was not necessarily the largest males that had the most adult female neighbors, which suggests that experience (age) likely plays a strong role in achieving reproductive success for male ringed seals.
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Spring haul-out behavior of ringed seals (Pusa hispida) in Kongsfjorden, Svalbard
TL;DR: Investigation of the spring molting period of 2003 in Kongsfjorden, Svalbard, Norway found that time of day and date significantly affected the number of ringed seals hauled out on the ice surface, and adult females had the greatest number of haul-out periods that exceeded 24 h.
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Size selection of Antarctic krill (Euphausia superba) in a commercial codend and trawl body
TL;DR: In this article, the size selection of krill in a commercially applied codend during experimental fishing was quantified, and it was shown that the trawl body contributes significantly to the total size selection process, demonstrating that size selectivity of Antarctic krill is affected by both the traw body and the codend.