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A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011
Abstract: Acoustically based estimates of Antarctic krill (Euphausia superba) biomass, and net ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . The time series of acoustic biomass indicate that krill have varied by more than an order of magnitude ... based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ...
Meeting Document : WG-EMM-11/26 : Автор(ы): A. Cossio, C. Reiss and R. Driscoll (USA)
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Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997
from logbook data of Japanese commercial krill fisheries during 1980 to 1997. Inter-annual patterns of ... Siegel et al. (1 998)'s values. This may be due to the net selectivity and/or incomplete coverage of ... the distribution of small krill by commercial fisheries. Inter-annual pattern of R1 and R2 in Subarea ... 48.2 showed somewhat similar pattern to Subarea 48.1. However, because of inconsistency of the ...
Meeting Document : WG-EMM-98/33 : Автор(ы): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V
Abstract: As an indicator of body fat condition, interannual variability in girth of minke whales ... of minke whales in Antarctic Areas IV (70°-130° E) and V (130° E-170°W) from 1989/90 to 1994/95. Of ... the six years included in the study, two were categorized as years of poor body fat condition, and ... three as years of good condition. Estimated body weight gain during the feeding season in poor years was ...
Meeting Document : WG-EMM-97/18 : Автор(ы): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.
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Modern data on parasitofauna of Dissostichus mawsoni and by-catch species from logline fishing in Antarctica
Abstract: Parasites are one of an integral part of any ecosystem and unfortunately knowledge ... of Antarctic circumpolar ecosystem plays its role on existence of endemic forms of animals, including ... parasites, which sometimes have unpredictably large sizes and distribution. The best example of it ... – Lophoura szidati. In this work we conclude the results of preliminary analysis of collected parasites of ...
Meeting Document : WG-FSA-12/P09 : Автор(ы): I.I. Gordeev and S.G. Sokolov
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Reports on biological information of toothfish with special reference to bycatch, depredation and spawning dynamics in Division 58.4.4 a & b by Shinsei maru No. 3 during 2008–14 seasons
weight and number, accounting for 93% and 76% of the total catch, respectively, among total of 16 species ... method and grenadier bycatch method by Gasco et al. (2014) using two size levels of unit cell, and ... SSRU 58.4.4bC. The depredation rate in weight of whales toward toothfish was estimated to be only 3.8 ... -4.8 % in SSRU 58.4.4bC during 2008-12 using the CPUE method, while the presence/absence of whales was ...
Meeting Document : WG-FSA-15/21 : Автор(ы): K. Taki and T. Ichii (Japan)
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Ecoregionalisation of the Kerguelen and Crozet islands oceanic zone. Part I: Introduction and Kerguelen oceanic zone
Antarctiques Françaises. The workshop listed general conservation objectives to evaluate boundaries of ... habitats, life history traits,…). This report is a summary of the conclusions based on expert knowledge. It ... is divided into three parts:- A summary of the ecological characteristics of the Kerguelen ... oceanic zone;- The ecoregionalisation of the pelagic realm, the benthic realm and the top ...
Meeting Document : WG-EMM-16/43 : Автор(ы): P. Koubbi, C. Guinet, N. Alloncle, N. Ameziane, C.S. Azam, A. Baudena, C.A. Bost, R. Causse, C. Chazeau, G. Coste,C. Cotté, F. D'Ovidio, K. Delord, G. Duhamel, A. Forget, N. Gasco, M. Hautecœur, P. Lehodey, C. Lo Monaco, C. Marteau, A. Martin, C. Mignard, P. Pruvost, T. Saucède, R. Sinegre, T. Thellier, A.G. Verdier and H. Weimerskirch
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Otolith elemental signatures reveal habitat shift of Electrona carlsbergi
Abstract: Electron subantarctic (Electrona carlsbergi) is one of important pelagic myctophidae ... which circumpolar distributed between the warm waters of the subtropical confluence zone and the ... Southern Ocean. The distribution, life history and migration pattern of this species were examined using ... the biological data in 1990s, however, the habitat shift of this species was still unclear. The ...
Meeting Document : WG-FSA-17/65 : Автор(ы): L. Wei and G.P. Zhu
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Influence of krill availability on humpback whale breeding success
Abstract: The abundance of the Antarctic krill (Euphausia superba) has been declining in the ... western Antarctic Peninsula (WAP), probably as a consequence of the effects of the considerable increase ... survival) of the krill consumers may be compromised. In the present study, we investigated the reproductive ... success of humpback whales (Megaptera novaeangliae) from Breeding Stock G in relation to krill density ...
Meeting Document : WG-EMM-18/P15 : Автор(ы): E. Seyboth, F. Félix, M.-A. Lea, L. Dalla Rosa, G. Watters, K. Reid and E. Secchi
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
Abstract: We assessed the environmental variability of Antarctic krill (Euphausia superba ... in December 1999. The Antarctic Surface Water mass, consisting of Winter Water and Summer Surface ... Antarctic Surface Water in 2000 reduced southward. Geographical distribution of krill, which approximates ... the area of the Antarctic Surface Water, in 1987/88 extended northward with high density. In contrast ...
Meeting Document : WG-EMM-02/43 : Автор(ы): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)
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Engaging ‘the crowd’ in citizen science and remote sensing to learn about habitat affinity of two Southern Ocean seals
presence/absence patterns of the Weddell seal (Leptonychotes weddellii), and has recently been adapted for ... efficient method to screen large numbers of images (and hence area) for undertaking census counts of Weddell ... images of the pack ice acquired during October 2018 in the Weddell Sea to identify presence/absence of ... 852 VHR images, composed of a series of tiles called “maps”, across both campaigns. The circum ...
Meeting Document : WG-EMM-2019/37 : Автор(ы): M.A. LaRue, D.G. Ainley, J. Pennycook, K. Stamatiou, M. Dozier, J. Saints, L. Sales, N. Nur, S. Stammerjohn and L. Barrington
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