Résultats de la recherche
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Marine mammals and demersal longlines fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of the depredation level
vessels, catching Patagonian tooshfish in the Crozet and Kerguelen Exclusive Economic Zones, between 2003 ... and 2005. In Crozet waters, 71% of the 1308 longlines presented marine mammals interactions with ... killer whales and/or sperm whales. On the other hand, fur seals and/or sperm whales were present in 54 ... % of the 6262 longlines monitored in the Kerguelen waters. Interactions occurred over the whole fishing ...
Meeting Document : WG-FSA-06/63 : Auteur(s): C. Roche, N. Gasco, G. Duhamel and C. Guinet (France)
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Report of the South Georgia groundfish survey (Subarea 48.3) in January 2006
Abstract: The biennial South Georgia Groundfish Survey was undertaken in January 2006 on board ... the FPRV Dorada. Sixty-three random trawls were undertaken, with 12.3 tonnes of mackerel icesfish ... caught, which produced biomass estimates of between 91000 and 117000 tonnes. The catches were dominated ... the N and NE of South Georgia. Fish in spawning condition (Stage IV) were found at the eastern end of ...
Meeting Document : WG-FSA-06/51 : Auteur(s): M.A. Collins, C. Jones, J. Clark. S. Fielding, J. Slakowski, T. North, W. Reid and J. Watts (United Kingdom)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island Plateau region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in May 2004
58.5.2 in the vicinity of Heard Island in May 2004 to provide the information for an assessment of short ... -term annual yield in the 2004/2005 CCAMLR season. This paper provides a preliminary assessment of yield ... for the area of Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods. It presents a ... range of sensitivity analysis for the assessment based on deliberations at WG-FSA 2003 with respect to ...
Meeting Document : WG-FSA-04/76 : Auteur(s): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
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Estimation of krill biomass from an acoustic survey carried out in 1986, during a study of predator–prey interactions around the western end of South Georgia
Abstract: An acoustic survey, designed to study the distribution of shore-breeding, marine ... predators and their pelagic prey, was carried out in 1986 around the western end of South Georgia. This ... paper describes how this acoustic data has been used to estimate krill biomass of part of the original ... survey area as part of an interannual study. The radiating transect design gave increased sampling ...
Meeting Document : WG-EMM-99/17 : Auteur(s): C. Goss and S. Grant (United Kingdom)
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The Southern Ocean Observing System (SOOS): an update
Abstract: This Background Paper reports on progress with the Southern Ocean Observing System ... (SOOS), noting in particular the importance of the SOOS to the work of CCAMLR and the key role of CCAMLR ... in implementation of the SOOS, for example through the CCAMLR Ecosystem Monitoring Programme (CEMP ... ). CCAMLR are invited to appoint an ex-officio representative to the SOOS Steering Committee. A SOOS Initial ...
Meeting Document : CCAMLR-XXX/BG/13 : Auteur(s): A joint submission by SCAR and SCOR
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RESULTS OF INVESTIGATIONS ON ANTARCTIC TOOTHFISH D. MAWSONI NORMAN, 1937 (PERCIFORMES,NOTOTHENIIDAE) FEEDING IN SUBAREA 48.6 SSRU E DURING THE 2008/09 SEASON
Abstract: For the first time, the investigations on feeding of Antarctic toothfish (Dissostichus ... mawsoni) from the bottom longline catches in the Lazarev Sea were carried out. The analysis of food ... composition for males and females in the eastern Lazarev Sea showed that dominant food objects for individuals ... ), and grenadier (Macrourus whitsoni). During the investigation period the total indices of fullness of ...
Meeting Document : WG-FSA-09/25 : Auteur(s): A.F. Petrov and V.A. Tatarnikov (Russia)
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Community Structure of copepods in epipelagic layers in the Ross Sea and neighboring waters
Abstract: During the 9th research cruise of the R/V Kaiyo-maru, copepod samples were collected ... from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in the ... identified and 8 unidentified taxa appeared in the study area. Samples were categorized into four major ... groups by cluster analysis based on species abundance and composition. Group 1 located in the north of ...
Meeting Document : WG-EMM-08/36 : Auteur(s): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
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OTOLITH CHEMISTRY REFLECTS FRONTAL SYSTEMS IN THE ANTARCTIC CIRCUMPOLAR CURRENT
Abstract: Pronounced environmental trends across fronts suggest that the otolith chemistry of ... spatial scales. Trace and minor elements laid down immediately prior to capture – along the edges of ... otoliths from Patagonian toothfish Dissostichus eleginoides – discriminated frontal zones in the Antarctic ... Circumpolar Current in the Southwestern Atlantic Ocean. Mean values differentiated sampling areas by up to 2.6 ...
Meeting Document : WG-FSA-08/P04 - Abstract : Auteur(s): J.R. Ashford, A.I. Arkhipkin and C.M. Jones
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On the examining of krill flux
) in the choosen polygones, the proves of active long-distance migrations of krill are considered ... . These proves are not undoubted. The most difficult problem, which nevertheless should determine the ... results of calculations, is the valuation of krill retention time. To make it more correct and natural it ... is necessary to take into account the biological characteristics of krill, especially for the regions ...
Meeting Document : WG-EMM-95/19 : Auteur(s): Makarov, R.
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Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys
around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ... and 1988 75% of the catch in Subarea 48.2 between December and March was taken within 80 km of ...
Meeting Document : WG-KRILL-92/19 : Auteur(s): D.J. Agnew (Secretariat)