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Diet of grey-headed albatrosses at the Diego Ramírez Islands, Chile: ecological implications
Abstract: The diet of grey-headed albatrosses at Diego Ramírez, Chile, was analyzed and compared ... to that of the sympatric black-browed albatross. Diet composition was inferred from an analysis of ... . The squid Martialia hyadesi predominated in the diet samples in 2001 and 2002 (89% and 81% of ... suggests that M. hyadesi plays an important role in the breeding performance of grey-headed albatrosses at ...
Meeting Document : WG-FSA-04/12 : Автор(ы): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile), J.C. Xavier (UK) and C.A. Moreno (Chile)
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Updated ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Abstract: The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... updated to take account of further catch, GLM standardised CPUE and catch- at-length information that have ... become available for the year 2004. Twenty year biomass projections under the assumption of various ... constant annual catches are also shown. These suggest that maintenance of the present TAC of 500 tonnes is ...
Meeting Document : WG-FSA-04/37 : Автор(ы): A. Brandão and D.S. Butterworth (South Africa)
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Age-at-length of Patagonian toothfish from the Falkland/Malvinas Islands
Abstract: To provide an age-length key for use in modelling the age structure of the Patagonian ... toothfish stock around the Falkland Islands, we used otoliths to estimate the age of a sample of 1893 ... crenellations. Two readers undertook one reading each of the sections, estimating age using criteria agreed at ... reference ages. However, the second trainee reader consistently over-estimated the age of younger fish, and ...
Meeting Document : WG-FSA-02/74 : Автор(ы): J. Ashford, A. Arkhipkin, C. Jones and S. Bobko
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A study of UK and Russian surveys using acoustics to augment trawling methods in shelf waters off South Georgia (Subarea 48.3)
differences between the surveys and discuss how much of the variation between the vessels was due to ... differences in the gear used and how much was due to natural spatial/temporal variability of the stock. The ... portion of icefish biomass was located in the water column. Thus the traditional approach of using bottom ... during WG-FSA–2002. These results show that the current observation system for the collection of data for ...
Meeting Document : WG-FSA-02/56 : Автор(ы): S. Kasatkina, P. Gasyukov (Russia), C. Goss, I. Everson, M. Belchier, T. Marlow, A. North and M. Collins (United Kingdom)
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Green krill, the indicator of micro- and nano-size phytoplankton availability to krill
Abstract: Size fractionated chlorophyll-a concentrations of surface seawater was measured (pico ... -, nano-, and micro-size fractions) during commercial krill operations in the waters north of the South ... Shetland Islands from late December, 1991 to mid-February, 1992. The proportion of green krill had ... the importance of micro- and nano-size phytoplanktons in terms of food source for the Antarctic krill ...
Meeting Document : WG-EMM-98/29 : Автор(ы): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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Biodiversity of the benthos off Kerguelen Islands: overview and perspectives
number of species recorded from the Kerguelen has substantially increased. From 172 species reported by ... Arnaud (1974), the total number of species has increased dramatically to 735 (Jouventin et al., 1996) and ... northern limit of the Polar Front is probably one of the best study areas to (1) monitor the impact of ... environmental forcing; and (3) assess the biodiversity of these benthic communities. Author(s): N. Améziane, M ...
Meeting Document : WS-MPA-11/P03 : Автор(ы): N. Améziane, M. Eléaume, L.G. Hemery, F. Monniot, A. Hemery, M. Hautecoeur and A. Dettaï
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Climate Change, Longevity Overfishing and Precautious Management of the Area 88 Toothfish Fishery
Abstract: Three aspects of current management of the “exploratory” Antarctic toothfish ... face of climate-related environmental changes currently underway. These aspects are: 1) lack of ... of this species to climate-related factors; and 3) an increase in that sensitivity owing to the ... targeted removal of the oldest, most successful and most fecund toothfish. The current strategy is to ...
Meeting Document : WG-FSA-09/07 : Автор(ы): D. Ainley (USA), M. Massaro, G. Ballard (New Zealand) and J.T. Eastman (USA)
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PREDICTING THE VULNERABILITY OF BENTHIC, HABITAT-FORMING ORGANISMS TO DISTURBANCE USING LIFE-HISTORY CHARACTERISTICS
Abstract: Assessing the impacts of fishing on Vulnerable Marine Ecosystems (VMEs) in the Southern ... Ocean is hampered by the paucity of information on the resistance and resilience of these ecosystems to ... disturbance. Both resistance and resilience of individual VME-forming taxa are related to their life-history ... characteristics. A global database of life-history characteristics, including growth rate, age, maximum size and ...
Meeting Document : WG-EMM-09/35 : Автор(ы): K. Martin-Smith (Australia)
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FIRST EXPERIMENTAL SETTINGS OF DEEPWATER VERTICAL LONGLINES IN THE ANTARCTIC TOOTHFISH FISHERY DISSOSTICHUS MAWSONI NORMAN, 1937 (PERCIFORMES, NOTOTHENIIDAE) IN THE AMUNDSEN SEA
Abstract: For the first time in the history of deepwater longline fishing on Antarctic toothfish ... Dissostichus mawsoni (Norman, 1937) the experimental settings of deepwater vertical longlines was made from the ... Russian longliner Yantar in March, 2008 in the Amundsen Sea (subarea 88.2,D of the Pacific sector). The ... experiments proved that this species, one of the most valuable large commercial species of the South Ocean ...
Meeting Document : WG-FSA-09/08 : Автор(ы): N.V. Kokorin (Russia) and V.V. Serbin (Ukraine)
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The diet of the Antarctic fur seal Arctocephalus gazella at Harmony Point, Nelson Island, South Shetland Islands
Abstract: The diet of juvenile and non-breeding male Antarctic fur seals Arctocephalus gazella ... was investigated at Harmony Point, Nelson Island, South Shetland Islands, by the analysis of 18 and 33 ... (50.2%). The importance of the remaining taxa represented in the samples (octopods, hyperiids and ... bivalves) was negligible. Among fish, Myctophiids represented 85.2% of the fish mass, being Gymnoscopelus ...
Meeting Document : WG-EMM-97/60 : Автор(ы): Carlini, A., Baroni, A., Casaux, R.
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