Résultats de la recherche
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Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators
Abstract: The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... monitoring programme. We examined the mechanistic relationships between, and patterns of inter-annual ... included foraging performance, offspring survival, offspring mass, the contribution of Antarctic krill ... Euphausia superba to the diet, and per capita reproductive performance (PRP: the product of offspring ...
Meeting Document : WG-EMM-12/16 : Auteur(s): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)
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Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer
Abstract: The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... krill is still scarce and fragmentary, despite the fact that those organisms are a significant element ... of the penguins and pinnipeds’ diet. Admiralty Bay, because of its specific hydrological conditions ... make this region particularly susceptible to climate change. This area is also a breeding site of the ...
Meeting Document : WG-EMM-14/60 : Auteur(s): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan, South Africa and Spain
2013 to enhance data collection and analysis in the Subarea 48.6. In the last WG-SAM Spain has proposed ... to join the former proposal in order to contribute to the data acquisition and to speed up the ... integrated assessments of the D.mawsoni stock in this subarea. The Working Group recommended that Spain ... should coordinate its research efforts with Japan and South Africa and encouraged the submission of a ...
Meeting Document : WG-FSA-18/34 : Auteur(s): Delegations of Japan, South Africa and Spain
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Principles for evaluating data collection plans in data-poor exploratory fisheries
faster than the acquisition of information necessary to ensure that the fishery can and will be conducted ... in accordance with the principles set forth in Article II of the Convention. However, several times ... over the last five years the Scientific Committee has noted with concern the lack of progress in ... of fishing increases the risk of over-exploitation of fish stocks. In this paper we articulate a set ...
Meeting Document : WG-SAM-11/08 : Auteur(s): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)
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Population numbers of fur seals at Prince Edward Island, Southern Ocean
Abstract: During the period 17–22 December 2001, the onshore distribution and the abundance of ... Prince Edward Island (46°38´S, 37°57´E). Two breeding colonies of Antarctic fur seals were located on the ... south-east coast of the island; the first a mixed (with Subantarctic fur seals) breeding colony with an ... estimated 24 pups on a vegetated promontory on the northern section of Boggel Beach, and the second, a ...
Meeting Document : WG-EMM-03/18 : Auteur(s): M.N. Bester, P.G. Ryan and B.M. Dyer (South Africa)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Signy Island, South Orkney Islands 2000/01
Abstract: The results of the fifth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2000/2001 summer season. This is the first year in ... Island, these indicated that the number of entangled fur seals had increased (by57%) compared to the ... previous year. The absence of entangled seals at Signy Island could be due to the relatively low numbers of ...
Meeting Document : SC-CAMLR-XX/BG/04 : Auteur(s): Delegation of the United Kingdom
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Seabird by-catch and bait loss in longlining using different setting methods
killed, while the associated bait loss may have serious impact on longlining efficiency and profitability ... a setting funnel that guided the baited line beneath the sea surface or when using a sea-bird ... scaring device. Bait loss and the catches of target species and sea birds were compared with those of ... effectively by the sea-bird scarer. Losses of mackerel bait were also significantly reduced by using the ...
Meeting Document : WG-FSA-96/06 : Auteur(s): Løkkeborg, S.
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Peches exploratoires dans la sous-zone 58.6, resultats des campagnes 1983 a 1995
Abstract: Exporatory fishing with bottom trawl conducted by the French trawler « Austral» off the ... Crozet archipelago (sub-area 58-6) does not allow to detect any other marine living resources than the ... only one Nototheniid fish Dissostichus eleginoides. The other species have no future for a commercial ... exploitation due to their sizes. Deep-sea fishing only (slope of the shelf:300- 750 m) show some shoals of sub ...
Meeting Document : WG-FSA-95/10 : Auteur(s): Duhamel, G.
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Numerical model of ecosystem including Euphausia superba Dana as a key species in circumpolar region
Abstract: On the processes to investigate a proper model for understanding the processes that ... govern the biochemical cycle in Antarctic Ocean, we made a research plan as follows: (1) to develop an ... ecology (4) to develop a numerical model to couple the OGCM and ecosystem models (5) to develop a ... numerical model including the effect of marine mammal consumption and catch of krill (6) to develop the ...
Meeting Document : WG-Krill-94/26 : Auteur(s): M.J. Kishi and M. Naganobu (Japan)
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Updated species profile for Antarctic toothfish (Dissostichus mawsoni)
Abstract: A species profile, covering aspects of the biology, fisheries and stock assessment of ... , and depredation. It focused primarily on the biology of D. mawsoni based on information collected from ... the Ross Sea fishery because that was where most of the work had been carried out. The aim of the ... current work was to update and revise the species profile of Hanchet (2006). It updates, collates, and ...
Meeting Document : WG-FSA-10/24 : Auteur(s): S.M. Hanchet (New Zealand)