Résultats de la recherche
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
significant distinctions in spatial distribution patterns of krill in the northwestern and the northeastern ... parts of South Georgia area. The boundary between two areas is located at about 37°30/ W. It is shown ... that in winter months in the northwestern part where foraging areas of dependent predators are located ... is non-attractive to fishery. The observed grounds with krill density exceeding the threshold value ...
Meeting Document : WG-EMM-04/66 Rev. 1 : Auteur(s): S.M. Kasatkina (Russia)
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Notes on the commercial krill harvest of the Japanese stern trawler Chiyo Maru No. 5 in Subarea 48.1
Abstract: The Japanese stern trawler Chiyo maru No. 5 conducted krill fishing operations in ... CCAMLR Subarea 48.1 during February, 2000. Under an agreement by the Japanese and United States ... governments, a CCAMLR International Scientific Observer was present on the vessel. This paper presents much of ... the information collected in graphical form, and serves as a compliment to the Final Report of ...
Meeting Document : WG-EMM-00/15 : Auteur(s): C. Jones (USA)
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A revision of yield and catch controls for managing the mackerel icefish (Champsocephalus gunnari) fishery in the vicinity of Heard Island and McDonald Islands
Abstract: A recent 2000 survey of mackerel icefish in the vicinity of Heard Island enabled a ... revised estimate of yield for the coming 2 seasons. While the biomass of icefish appears lower than in ... previous years, it is dominated by a strong age 2 year class. Estimates of yield for the Heard Island ... Plateau population using the short-term assessment are 1150 tonnes for 2000/01 and 1000 tonnes for 2001/02 ...
Meeting Document : WG-FSA-00/41 : Auteur(s): A. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Studies on zooplankton with special reference to krill from the Indian Ocean sector of the Southern Ocean
Abstract: Distribution, abundance and species composition of zooplankton collected during the ... 303.62m1./100m-3 (x=142.14±77.02). High standing stock values were recorded in the study area where ... copepods, chaetognaths, euphausiids and salps were the dominant taxa. Copepoda formed the major constituent ... of zooplankton community and the population density ranged fiom 650 to 7209/100 m-3 of zooplankton ...
Meeting Document : WG-EMM-98/35 : Auteur(s): K.L. Bhat, R. Vijayakumar and V. Jaya Sree (India)
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STANDING STOCK, SPATIAL DISTRIBUTION, AND BIOLOGICAL FEATURES OF DEMERSAL FINFISH FROM THE 2009 U.S. AMLR BOTTOM TRAWL SURVEY OF THE SOUTH ORKNEY ISLANDS (SUBAREA 48.2)
48.2) demersal finfish was completed during February-March, 2009 during the U.S. AMLR Program field ... season. Detailed information is presented for several of the most abundant demersal finfish species ... biomass within the 500 m isobath of South Orkney Islands. Spatial distribution of standardized finfish ... densities demonstrated substantial contrast across the shelf area, with most finfish biomass occurring on ...
Meeting Document : WG-FSA-09/19 : Auteur(s): C.D. Jones (USA) and K.-H. Kock (Germany)
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On the status of mesopelagic fish (myctophidae) in the Southern Ocean ecosystem
Abstract: Analysis and synthesis of results of Russian and foreign research into the trophic ... relationships of myctophids demonstrate that this group of mesopelagic fish plays a significant role in the ... community of marine organisms of the Southern Ocean. The trophic status of myctophids has been determined ... determines their high abundance and biomass. Thus, according to a preliminary estimate the yearly consumption ...
Meeting Document : WG-FSA-93/17 : Auteur(s): A.N. Kozlov (Russia)
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Abstract: Acoustic surveys carried out in summer and autumn periods of 1987-1989 estimated the ... biomass of myctophids in the Atlantic sector of the Southern Ocean over the region between 48° and 56°S ... and from 8° to 48W at about 1.7 mill.t. Over the larger part of the surveyed area the fish were sparse ... over only restricted areas. The bulk of the biomass has been reported from the region of the Antarctic ...
Meeting Document : WG-FSA-90/19 : Auteur(s): A.A. Filin, K.V. Gorchinsky and V.M. Kiseleva (USSR)
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Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
Abstract: Assessments of long-term sustainable yield using the Generalised Yield Model and the ... setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for the Heard ... surveys (RSTS) and from targeted commercial fishing operations via an observer program. The current RSTS ... for a range of levels of confidence. The results indicate that while the current and previous survey ...
Meeting Document : WG-FSA-SAM-04/19 : Auteur(s): Candy, S., Constable, A.J., Davies, C.R.
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Working Plan for the Review of the Admiralty Bay Antarctic Specially Managed Area Management Plan (ASMA No. 1)
Abstract: Brazil has been requested to coordinate the implementation of the review of the ... Management Plan for the Antarctic Specially Managed Area (ASMA) No. 1, Admiralty Bay, King George Island ... , South Shetland Archipelago (herein called the Area). The objective of this paper is to inform CCAMLR ... about the process for the revision and to ask for input into that process following the procedures ...
Meeting Document : WG-EMM-12/61 : Auteur(s): Jaqueline Leal Madruga (Submitted by Brazil on behalf of the ASMA No. 1 Management Group – Brazil, Ecuador, Peru, Poland and the United States)
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An overview of the elasmobranch fish of the Southern Ocean
Abstract: This review summarises current knowledge of the elasmobranch fish occurring in the ... Antarctic and sub-Antarctic waters of the CCAMLR area. About 14–15 species of elasmobranch have been ... recorded, with skates (Rajiformes) the most speciose order. Two genera of skates are known (Amblyraja and ... Bathyraja), although the current taxonomic knowledge of some species or species-groups is incomplete. Five ...
Meeting Document : WG-FSA-13/28 : Auteur(s): J.R. Ellis, S.R. McCully, V.V. Laptikhovsky and R. Scott (United Kingdom)