Search results
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Community structure of epipelagic macrozooplankton in the Ross Sea
collected from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in ... on taxonomic composition. The group 1 comprised of stations with bottom depth of deeper than 1000 m ... . These were overlapped geologically with different group(s) at different layer(s). Author(s): Y ...
Meeting Document : WG-EMM-07/34 Rev. 1 : Author(s): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
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Population structure of icefish (Champsocephalus gunnari) in the South Georgia area (Antarctic)
inhabiting the areas at Shag Rocks and South Georgia is characterized with the lack of fish below 11 cm in ... grouping appears. These differences increase with fish length. The analysis of all data available allows to ... with a high probability that C.gunnari population in the South Georgia area is the major reproductive ...
Meeting Document : WG-FSA-04/40 : Author(s): Zh.A. Frolkina and I.A. Trunov (Russia)
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Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?
island groups with little energetic cost, and may constrain movement in other directions, influencing ... evidence suggests that, consistent with the dynamic-physical structure of the ACC, toothfish off the ... stocks at South Georgia and Kerguelen may be connected. Taken with the published genetic data, this ...
Meeting Document : WG-FSA-03/84 : Author(s): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)
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Acoustic discrimination of southern ocean zooplankton
upper 250 m of the water column. These layers were fished with a LonghurstHardy plankton recorder (LHPR ... originating from Antarctic krill Euphausia superba, with an overall correct classification rate of 77%. We ... therefore demonstrate that with the use of echo intensity data alone, gathered using hardware commonly ...
Meeting Document : WG-EMM-97/54 : Author(s): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.
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A revised assessment of the impact of the krill fishery on penguins in the South Shetlands
antarctica) are closely associated with areas where sea-ice disappears earlier in spring, not necessarily ... with areas of high krill abundance. The overlap between trawling depth and foraging dive depth of ... preferred fishing areas during the breeding season. Compared with the level of biomass (≥200 xl03 tonnes ...
Meeting Document : WG-Joint-94/17 : Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ... Electrona antarctica), with krill (33%) and amphipods (Themisto gaudichaudii; 21%) also occurring. When ... South Georgia, consistent with an area of high macrozooplankton biomass, but fur seals were apparently ...
Meeting Document : WG-EMM-10/P07 : Author(s): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
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Decadal trends in abundance, size and condition of Antarctic toothfish in McMurdo Sound, Antarctica, 1972–2011
then decreased. Fish length positively correlated with Ross Sea ice extent in early spring, a ... the study area. Fish condition positively correlated with the amount of open water in the Ross Sea ... during the previous summer (Feb), perhaps reflecting greater availability of prey with the higher ...
Meeting Document : WG-FSA-12/P04 : Author(s): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries
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Foraging zones of the two sibling species of giant petrels in the Indian Ocean throughout the annual cycle: implication for their conservation
higher than interspecific ones, with females showing a greater distribution range than males in both ... months. These results have important conservation implications, with males and females facing different ... more likely to overlap with high sea longlining such as tuna fisheries. Author(s): L. Thiers, K ...
Meeting Document : WG-FSA-12/67 : Author(s): L. Thiers, K. Delord, C. Barbraud (France), R.A. Phillips (United Kingdom) and H. Weimerskirch (France)
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A preliminary stock assessment in SSRUS 486A, G: A Bayesian and CPUE based biomass dynamic model
area of 48.6 (SSRU 48.6A, 48.6G). Antarctic and Patagonian toothfish presented a high proportion with ... assessment model, it is highly recommendable to continue with the collection of the data by scientific ... with little information of abundance such as presented here. Author(s): R. Wiff, J.C. Quiroz (Chile ...
Meeting Document : WG-SAM-13/29 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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Dynamic of the krill fishery in the Area 48 and its relation to climate variability and changes in fishing technology
. Standardization of CPUE values was calculated on the basis of generalized linear models method with mixed effects ... indices for the whole observation period 1985-2011. Analysis of krill fishery indices obtained with using ... different fishing technologies revealed that the “high CPUEs” regime is not associated with the changes in ...
Meeting Document : WG-EMM-13/25 : Author(s): P.S. Gasyukov and S.М Kаsatkina (Russia)