Résultats de la recherche
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SCOI-97
Illegal fishing for toothfish (Dissostichus eleginoides) in French waters adjacent to the Kerguelen and ... fishing vessels in the Convention Area in the 1996/97 season Secretariat SCOI-97/07 The provision of ... Heard Island including fishing in breach of CCAMLR conservation measures Delegation of Australia SCOI-97 ... /13 List of vessels involved in the fishery in the South Indian Ocean and the Indian Ocean sector of ...
Meeting
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Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
(NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... were highly variable both within and between the five species studied. Once the factors length and year ... had been accounted for, the mercury levels in D. eleginoides were over four times greater than in D ...
Meeting Document : WG-FSA-07/24 : Auteur(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
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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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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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On the problem of diurnal migrations of some fish species on the South Georgia shelf (Subarea 48.3)
Abstract: The results of experiments on the South Georgia Shelf carried out in the period of 1986 ... was the most distinctive in Ch.gunnari fry. The individuals used to ascend towards the water column ... individuals were found in the pre-bottom layer by day, being presented their small quantities in the water ... expressed during 24 hours. It was distinctly observed in juvenile and adult individuals: they were kept ...
Meeting Document : WG-FSA-99/64 : Auteur(s): I.A. Trunov, J.A. Frolkina and M.P. Konstantinova (Russia)
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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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Network characterisation of the food-web of the Ross Sea, Antarctica
, i.e. the whole Ross Sea shelf and slope area, averaged over a typical year, and in 35 trophic groups ... toothfish (Dissostichus mawsoni) in the region. We evaluate: (1) biomass and flow of organic matter by ... pronounced peak in biomass in the lower-middle part of the food-web, a result of high biomass of ... the total living biomass in the Ross Sea (bacteria excluded). The six groups with the highest ‘indices ...
Meeting Document : WG-EMM-12/53 : Auteur(s): M.H. Pinkerton and J.M. Bradford-Grieve (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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A balanced trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
in summer, and some may stay in the region year-round. The trophic model was balanced by adjusting ... variability in primary production. In the relative absence of krill, Antarctic silverfish (Pleuragramma ... primary production and the larger predators, though the role of cepahlopods in the system is poorly known ... characteristics are not well known. Toothed and baleen whales visit the Ross Sea in summer in relatively large ...
Meeting Document : WG-EMM-07/18 : Auteur(s): M.H. Pinkerton, S.M. Hanchet and J. Bradford-Grieve (New Zealand)
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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)