Résultats de la recherche
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003
Abstract: A preliminary assessment of yield of Patagonian Toothfish, Dissostichus eleginoides ... result of a randomly stratified trawl survey completed between 16 April and 10 May 2003. The 2003 ... estimate of abundance of recruits indicates a continuation of a period relatively low recruitment since ... preliminary estimate of sustainable long-term yield assessed using the standard method. The preliminary ...
Meeting Document : WG-FSA-03/33 : Auteur(s): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)
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The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’
Abstract: The "CAML / SCAR-MarBIN Biogeographic Atlas of the Southern Ocean" Claude De ... of primary importance for monitoring biodiversity and detecting impacts of environmental changes ... , developing the bio/ecoregionalisation of the Southern Ocean, designing marine protected areas, conducting ... comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ...
Meeting Document : WS-MPA-11/15 : Auteur(s): C. De Broyer (Belgium) and P. Koubbi (France)
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The food and feeding ecology of the white-chinned petrel Procellaria aequinoctialis at South Georgia
Abstract: The diet of the white-chinned petrel at Bird Island, South Georgia was studied during ... the chick-rearing period in 1986 by quantitative analysis (by weight, frequency of occurrence and ... number of individuals) of regurgitated or lavaged adult stomach contents. Antarctic krill was the most ... important constituent of the diet, comprising over 90% of prey items and forming 47% of the diet by weight ...
Meeting Document : WG-CEMP-94/14 : Auteur(s): J.P. Croxall, A.J. Hall, H.J. Hill, A.W. North and P.G. Rodhouse (United Kingdom)
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Catch rates and length composition data of the longline fishery for Dissostichus eleginoides at the Prince Edward Islands: 1996/97
Abstract: The first reports of commercial catches of Patagonian toothfish Dissostichus ... eleginoides made in the vicinity of the Prince Edward Islands, a South African territory in the Indian Ocean ... Sector of the Southern Ocean, surfaced early in 1996. This generated both national and international ... interest in the fishery leading to a great influx of vessels to the area. By the end of 1996 up to 40 ...
Meeting Document : SC-CAMLR-XVI/BG/28 : Auteur(s): Delegation of South Africa
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Assessments of by-catch in trawl fisheries at Heard and MacDonald Islands
Abstract: This paper provides an assessment of the long-term annual yield for three species ... undertaken with the aim of examining the potential for the commercial trawl fisheries to significantly affect ... the spawning biomass of these stocks in the longer term. The long-term annual yield for each of the ... literature. The second part of the analysis examined the amount of each species caught in the commercial ...
Meeting Document : WG-FSA-97/30 : Auteur(s): de la Mare, W.K., Williams, R., Constable, A.
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Pre-spawning and spawning biology of the Patagonian toothfish, Dissostichus eleginoides, around South Georgia (Subarea 48.3)
Abstract: Samples gathered from research expeditions of the longliners Medvezhy (April-June 1986 ... ) as well as Maksheevo and Mirgorod (June-July 1992) have produced new data on the biology of the ... reproductive part of the Dissostichus eleginoides population in Subarea 48.3. Analysis and synthesis of these ... data have established the bathymetric distribution patterns for different size-groups of toothfish ...
Meeting Document : WG-FSA-92/13 : Auteur(s): I.N. Konforkin and A.N. Kozlov (VNIRO, Moscow, Russia)
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An attempt to derive a composite index of abundance from acoustic surveys and fishery data
Abstract: Maps of krill (Euphausia superba) density derived from acoustic survey data and the ... distribution of fishing effort in the Chilean krill fishery indicate an area of high krill density wrapping ... around the northwestern end of Elephant Island during the austral summer of 1992. In this area, the ... distribution of catch-per-fishing-time and krill density (measured acoustically) show similar forms. Search ...
Meeting Document : WG-Krill-94/14 : Auteur(s): R.P. Hewitt (USA), V. Marín (Chile) and D. Demer (USA)
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Bycatch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)
Abstract: A final report of scientific observations conducted aboard the Japanese krill fishing ... vessel Chiyo Maru No. 2 was presented to the first meeting of WG-EMM. The WG-EMM welcomed the report but ... . This manuscript presents a brief reanalysis of the bycatch data collected onboard the Chiyo Maru No. 2 ... ; means and variances are calculated according to the methods of Aitchison (1955) and Pennington (1983 ...
Meeting Document : WG-FSA-95/40 Rev. 1 : Auteur(s): Watters, G.
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Comparative biological characteristics of Electrona carlsbergi (Tåning) (Myctophidae) from the notal and Antarctic areas in the Southern Ocean Atlantic sector
Abstract: Some biological peculiarities of E. carlsbergi from the Antarctic and notal areas of ... the Southern Ocean Atlantic sector have been studied on the basis of the data for 1987-1989. Mean ... length of fish from the Antarctic area increased while drifting eastward in the Antarctic circumpolar ... current waters. Fish specimens from 62 to 97 mm long were registered in catches. About 95% of specimens ...
Meeting Document : WG-FSA-90/21 : Auteur(s): K.V. Gorchinsky, V.M. Kiseleva and A.A. Filin (USSR)
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Proposal for an extension to the mark-recapture experiment to estimate toothfish population size in the South of Subarea 48.4
Abstract: A three‐year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... fishing season with the aims of providing the data required for assessments of the population structure ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... 48.4; A total of 186 D. eleginoides and 202 D. mawsoni were tagged and released in 2010, leaving a ...
Meeting Document : WG-FSA-10/40 : Auteur(s): J. Roberts and D. Agnew (UK)