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Stable isotope analysis reveals trophic variation in adult Antarctic krill (Euphausia superba) around the Antarctic Peninsula from austral fall to early winter
South Shetland Islands. Our data imply that adult krill present size-, season-, and region-dependent ... Abstract: The Antarctic krill (Euphausia superba) is a key species in the Southern Ocean ... variation in δ 13 C and δ 15 N values of adult krill in the Antarctic Peninsula, in the austral fall (April ... to May) and the early winter (June). We aimed to examine the trophic variations of krill occurred ...
Meeting Document : WG-EMM-2019/P03 : Автор(ы): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang
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Krill (Euphausia superba) distribution contracts southward during rapid regional warming
be sensitive to warming and ice loss, but data are scarce and evidence is conflicting. Here, we show ... Euphausia superba (hereafter, ‘krill’) has contracted southward over the past 90 years. Near their northern ... juvenile krill. We found evidence for environmental controls on recruitment, including a reduced density of ... larval krill. However, the total post-larval density has declined less steeply than the density of ...
Meeting Document : WG-EMM-2019/P02 : Автор(ы): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, C.S. Reiss, V.J. Loeb, D.K. Steinberg, K. Schmidt, G.A. Tarling, L. Gerrish and S.F. Sailley
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Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation
Paper Title: Sensitivity investigation of the SDWBA Antarctic krill target strength model to ... TS of Antarctic krill (Euphausia superba) for use in the acoustic echo-integration method. In this ... variability of krill in the area of investigation. In a multifrequency context, the girth–length relationship ... and 120 kHz attributed to krill and net samples from the CCAMLR2000 Survey data in the Scotia Sea ... Fisheries and Coastal Affairs through the project ‘Antarctic Krill and Ecosystem Studies (AKES)’ with ... INVESTIGATION OF THE SDWBA ANTARCTIC KRILL TARGET STRENGTH MODEL TO FATNESS, MATERIAL CONTRASTS AND ... predict the TS of Antarctic krill (Euphausia superba) for use in the acoustic echointegration method ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Автор(ы): Calise, L. and G. Skaret
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Proposal for an acoustic krill biomass survey in CCAMLR Division 58.4.2
Abstract: This document outlines plans by Australia to conduct an acoustic biomass survey for ... krill in CCAMLR Division 58.4.2 (the South West Indian Ocean Sector) in January-March 2006. The survey ... data to that used on the CCAMLR2000 survey. The survey will be conducted from a single ship and will ... : Proposal for an acoustic krill biomass survey in CCAMLR Division 58.4.2 Approval: Approved ...
Meeting Document : WG-EMM-04/37 : Автор(ы): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)
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Krill physiology and impact of temperature variations: a comparative approach
the physiology of Antarctic krill, with a focus on the response to environmental temperature ... and should soon focus on data from at least 25 different euphausiid species harvested in the Antarctic ... -Taiwanese and French-Chilean collaboration. Author(s): J.-Y. Toullec and C.-Y. Lee Title: Krill physiology ... Status: Content Approved Document Release Consent: No Delegation responsibility for releasing documents ...
Meeting Document : WG-EMM-2019/70 : Автор(ы): J.-Y. Toullec and C.-Y. Lee
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OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
view that krill require high food concentrations, with a distribution often linked to shelves. For a ... wider, circumpolar perspective we compiled all available net-based density data on postlarvae: 8137 ... , with 70% of the total stock concentrated between 0o and 90oW. Within this Atlantic sector, krill are ... inner shelf whereas in the Indian-Pacific sectors krill prevail in the ocean within 200-300 km of the ...
Meeting Document : WG-EMM-08/P04 - Abstract : Автор(ы): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
surveyed to investigate mechanisms for the formation of krill concentrations and to estimate acoustic ... biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters ... north of the islands, as usual. Tracks of drifting buoys (with curtain drogues at 30 m depth where krill ... ground for krill.) High concentrations of chlorophyll a were also measured in the shelf waters, showing a ...
Meeting Document : WG-KRILL-91/22 : Автор(ы): Delegation of Japan
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Possible options for the future management of the Antarctic krill fishery in Subarea 48.2
ecological knowledge base, but identify that this will take time. We conclude that if the krill fishery in ... identifies some of the main data requirements, including oceanographic modelling, predator monitoring, and ... fisheries acoustics. We propose that the experimental framework should be evaluated periodically in order to ... . Godø and S. Hill Title: Possible options for the future management of the Antarctic krill fishery in ...
Meeting Document : WG-EMM-16/18 : Автор(ы): P. Trathan, O.R. Godø and S. Hill
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
Abstract: Shipboard tracking study for krill-eating predators (penguins and female fur seals) at ... . Penguin foraging areas were formed in inshore region, where krill frequently occurred but higher density ... areas of krill (≥250g/m2) were rather limited. In contrast, fur sea! foraging areas were formed in ... offshore region, where krill occurred only occasionally but they tended to form extensive aggregations (ca ...
Meeting Document : WG-KRILL-92/27 : Автор(ы): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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Factors influencing Antarctic krill distribution in the South Shetlands
Abstract: The influences of biological and physical factors in the environment upon krill ... austral summer. Krill showed a distinct offshore-inshore heterogeneities in abundance and maturity stage ... zone (37.3 g/m2), and the highest along the shelf break (135.1 g/m2) in the inshore zone; krill were ... factors were considered to be responsible for this characteristic distribution of krill. Diatoms were the ...
Meeting Document : WG-KRILL-93/38 : Автор(ы): T. Ichii, H. Ishii and M. Naganobu (Japan)
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