Résultats de la recherche
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Coastal weather drives foraging behaviour of chinstrap penguins, Pygoscelis antarctica
Abstract: There is increasing interest in using higher-trophic level predators as ecosystem ... supports them. In the southwest Atlantic sector of the Southern Ocean, Antarctic krill (Euphausia superba ... the ecosystem in an adaptive framework for sustainably managing krill catch levels, performance ... environmental variability and fishing pressure on krill availability at scales relevant to predators. In this ...
Meeting Document : WG-EMM-18/P14 : Auteur(s): A.D. Lowther, P. Trathan, A. Tarroux, C. Lydersen and K.M. Kovacs
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Krill fishery information
Abstract: Fisheries targeting krill (Euphausia superba) in the CCAMLR Convention Area during 1998 ... /99 caught 103318 t of krill, and preliminary information indicates that the catch in 1999/00 will ... exceed 82913 t. Krill caught in 1998/99 was taken in Subareas 48.1 (38% of total catch), 48.2 (49%) and ... 48.3 (13%). As in recent past years, only grounds in Area 48 were fished. Catch and effort data and ...
Meeting Document : WG-EMM-00/25 : Auteur(s): Secretariat
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Observer notes (Subarea 88.1)
bottom long-line sets in Subarea 88.1 from 15.12.03 till 10.03.04 are presented. For the first time ... Antarctic toothfish was found in long-line catches above seamounts of the Pacific-Antarctic Ridge to the ... North up to 56°S. Presence of Patagonian toothfish in spawning aggregations of Antarctic toothfish ... cannot lead to their intbreeding as its gonads were at the early development stages in that period ...
Meeting Document : WG-FSA-04/89 : Auteur(s): V.G. Prutko (Ukraine)
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Modelling the impact of fishery by-catches on albatross populations
shown marked declines in abundance throughout their range. These seabirds are frequently taken as by ... -catch in longline fisheries and this mortality has been implicated in the population declines. 2. We ... the Crozet Islands, data on albatross abundance from 1960 to 1995, and reported effort data from the ... parameters in the model. 3. The model used two alternative assumptions about patterns of at-sea distribution ...
Meeting Document : WG-FSA-01/18 : Auteur(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)
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The fish diet of black-browed albatross Diomedea melanophrys and grey-headed albatross D. chrysostoma at South Georgia
60% by mass of the diet of grey-headed albatrosses in 1986 and 1994 respectively. We determined the ... otoliths (54 representing 9 taxa and 57 representing 17 taxa in black-browed and grey-headed albatross ... samples respectively). For black-browed albatrosses in 1986 the main fish prey was Patagonotothen guntheri ... (40% estimated biomass), whereas in 1994 Pseudochaenichthys georgianus was the main fish prey (57% of ...
Meeting Document : WG-EMM-96/11 : Auteur(s): Reid, K., Prince, P.A., Croxall, J.P.
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CCAMLR ecosystem monitoring and management: future work
Abstract: Harvesting of marine living resources in the Southern Ocean is managed by the ... in the conservation objectives. In the late 1980s, the precautionary approach of CCAMLR was ... developed, incorporating principles of how to use scientific evidence in the decision making process. Even ... ), it takes account of the needs of predators in the assessment of catch limits. The success of this ...
Meeting Document : WG-EMM-12/P05 : Auteur(s): A.J. Constable
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Infectious diseases of Antarctic penguins: current status and future threats
tourists in the future. Three main areas are likely to be impacted by this increase in use and by ... occurred. The majority of these events have occurred since the year 2000 in regions that will likely be ... valuable as indicators of the status of marine ecosystem health and are an indicator-species used in the ... on these birds. Long-term disease studies would therefore be useful as an adjunct to aid in ...
Meeting Document : WG-EMM-14/53 : Auteur(s): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)
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Feeding ecology of the two sympatric fish species Notothenia rossii and N. coriiceps from western Antarctic Peninsula: a fatty acids and stable isotopes approach
useful tool to elucidate the flow of energy and trophic interactions in an ecosystem and to analyse the ... - Notothenia rossii and N. coriiceps – that are key components in the inshore ecosystem of the South Shetland ... , polychaetes and gastropods) were screened in order to re-evaluate their trophic position (TP) and the energy ... flow, taking as representative of the area the local food web of Potter Cove, in King George Island ...
Meeting Document : WG-FSA-2019/26 : Auteur(s): E. Moreira, M. Novillo, K. Mintenbeck, E. Barrera-Oro and M. De Troch
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Interannual hydroclimate fluctuations of the Atlantic part of the Antarctic since 1970 to 2000
Abstract: Late in 1999 and early in 2000 there was observed a significant shifting of Falkland ... . In this connection, retrospective hydrometeorological data on the areas of South-West Atlantic ... indices showed that since 1996 atmospheric process unusual development had been observed. In 1996-1998 an ... could be changed which, in turn, provoked variations in hydrodynamic conditions of krill habitat within ...
Meeting Document : WG-EMM-00/35 : Auteur(s): G. Chernega, I. Polischuk and P. Chernyshkov (Russia)
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PROTECTING THE SOUTHERN OCEAN WHALE SANCTUARY: DEVELOPMENT OF A MANAGEMENT PLAN
Abstract: ASOC submitted a paper to the June meeting of the International Whaling Commission in ... Santiago outlining the reasons why the IWC, in concert with CCAMLR and other appropriate international ... as an Opening Statement in accordance with IWC rules. Following the IWC meeting, ASOC prepared an ... updated version of the paper, which is now in circulation to all of the governments participating in the ...
Meeting Document : CCAMLR-XXVII/BG/29 : Auteur(s): Submitted by ASOC