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Seasonal dynamics of an Antarctic krill resource hot spot in the Bransfield Strait, Antarctica

Biomass
Fisheries management
This decade-long study reveals a persistent krill hot spot in the Bransfield Strait where biomass increases dramatically from summer through autumn - contradicting assumptions that krill density remains stable throughout the fishing season. By analyzing acoustic data from Chinese fishing vessels operating during 2013-2022, researchers found that krill biomass in this relatively small hot spot during May can be 6 times higher than the entire Bransfield Strait's estimated summer biomass. The findings challenge conventional survey timing and highlight how seasonal ocean currents and water masses drive krill concentrations. Low-velocity zones where different water masses meet create ideal retention areas, while transport from the Bellingshausen and Weddell Seas continuously replenishes the population.
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Seasonal dynamics of an Antarctic krill resource hot spot in the Bransfield Strait, Antarctica

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Abundance and Distribution of Fin and Humpback Whales at the South Orkney Islands 2011–2025
Biomass
Fisheries management
Abundance and Distribution of Fin and Humpback Whales at the South Orkney Islands 2011–2025
The Enormous Repetitive Antarctic Krill Genome
Antarctic ecosystem
Climate
The Enormous Repetitive Antarctic Krill Genome
No evidence for a decline in the density of Antarctic krill Euphausia superba Dana, 1850, in the Southwest Atlantic sector between 1976 and 2016
Biomass
Antarctic ecosystem
No evidence for a decline in the density of Antarctic krill Euphausia superba Dana, 1850, in the Southwest Atlantic sector between 1976 and 2016
Adjusting the Management of the Antarctic Krill Fishery to Meet the Challenges of the 21st Century
Biomass
Fisheries management
Adjusting the Management of the Antarctic Krill Fishery to Meet the Challenges of the 21st Century

Latest publications

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Adjusting the Management of the Antarctic Krill Fishery to Meet the Challenges of the 21st Century

Biomass
Fisheries management
Antarctic ecosystem
Climate
Krill (Euphausia superba)
Proceedings of the National Academy of Sciences (PNAS), 2025

Abundance and Distribution of Fin and Humpback Whales at the South Orkney Islands 2011–2025

Biomass
Fisheries management
Antarctic ecosystem
Climate
Krill (Euphausia superba)
ICES Journal of Marine Science, 2025

Seasonal dynamics of an Antarctic krill resource hot spot in the Bransfield Strait, Antarctica

Biomass
Fisheries management
Antarctic ecosystem
Krill (Euphausia superba)
Marine and Coastal Fisheries, 2025, Vol. 17, No. 3, 2025