Résultats de la recherche
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Quantitative stock survey and some biological and morphometric characteristics of the deep-sea red crab Geryon quinquedens off south west Africa
Abstract: In order to assess the abundance of the red crab Geryon quinquedens, two otter-trawl ... width, whereas the mode for males was at 11.2 cm. In general. larger animals tended to inhabit shallower ... densities occurred at depths of 472-849 m, whereas unusually high concentrations were encountered during two ... cruises were undertaken in July and September 1978, on the continental slope off South West Africa. A ...
Meeting Document : WS-CRAB-93/22 : Auteur(s): C.J. De B. Beyers and C.G. Wilke (South Africa)
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Diving location and depth of breeding chinstrap penguins during incubation and chick-rearing period in King George Island, Antarctica
diving areas and longer foraging trips during incubation period while they dive in on-shore areas for a ... need of chick-feeding and the temporal changes in prey availability between the two reproduction stages ... , Antarctica Approval: Approved Secretariat Workflow Status: Content Approved Delegation responsibility for ... stages. During incubation and chick-rearing period, from December 2015 to January 2016 on King George ...
Meeting Document : WG-EMM-17/P01 : Auteur(s): W.Y. Lee, S. Park, N. Choi, K.W. Kim, H. Chung and J.-H. Kim
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Stock status and population assessment of the Antarctic starry skate (Amblyraja georgiana) in Subarea 48.3
on taxonomic identification, stock status and assessment for the Antarctic starry skate around South ... fishery for Patagonian toothfish (Dissostichus eleginoides) around South Georgia in the Southern Ocean ... Secretariat Workflow Status: Content Approved Document Release Consent: No Delegation responsibility for ... . Using ten years of tag-recapture data collected around South Georgia, a comprehensive analysis of data ...
Meeting Document : WG-FSA-18/27 : Auteur(s): M. Söffker, N.D. Walker, M. Belchier and J. Ellis
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Seabird by-catch by tuna longline fisheries off southern Africa, 1998–2000
most frequently. Based on 1998–1999 fishing effort, simple extrapolation suggests that 19 000–30 000 ... Abstract: The incidental mortality of seabirds in tuna longline fisheries is estimated for the ... off the Northern Cape and southern Namibia, where there are few birds, only one bird was caught on 93 ...
Meeting Document : WG-FSA-01/28 : Auteur(s): P.G. Ryan, D.G. Keith and M. Kroese (South Africa)
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Phytoplankton standing stocks in relation to krill in Antarctic waters
lies between latitude 56° to 61° 17's and longitude 30° to 40°E is characterized by cold surface ... abundance could be possible sites for locating krill fisheries in the southern oceans. Author(s): X.N ... Abstract: Investigations on krill trawl operations in the southern ocean were accompanied by the ... phytoplankton and zooplankton in the region of krill swarm however showed active feeding by the latter on these ...
Meeting Document : WG-EMM-98/34 : Auteur(s): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)
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White-chinned petrel incidental mortality event in the Subarea 48.3 Patagonian toothfish fishery during the season extension period in the 2013/14 season
for over 10 years. The circumstances associated with the event were investigated and a review of ... 2014/15. Options for possible future season extensions are discussed. Author(s): M.A Collins, M ... seabird mortality in the fishery undertaken. The mortality event occurred on a “Spanish” system longline ...
Meeting Document : WG-FSA-14/28 : Auteur(s): M.A Collins, M. Soffker, C. Darby, K. Ross and P.N. Trathan (United Kingdom)
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Analysis of the toothfish fishery indices in Subareas 88.1 and 88.2 when using different types of longline gears
Abstract: The indices of exploratory toothfish fishery in the Subareas 881 and 88.2 for the ... Approval: Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing ... (autoline, spanish, trotline) on the observed spatial-temporal variability of CPUE toothfish (kg/1000 ... attention was focused to the analysis of the length-species compositions of catch by years and SSRU while ...
Meeting Document : WG-SAM-17/23 : Auteur(s): S. Kasatkina
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Analysis of the toothfish fishery indices in Subareas 88.1 and 88.2 when using different types of longline gears
Abstract: The indices of exploratory toothfish fishery in the Subareas 881 and 88.2 for the ... : Approved Secretariat Workflow Status: Content Approved Delegation responsibility for releasing documents ... (autoline, spanish, trotline) on the observed spatial-temporal variability of CPUE toothfish (kg/1000 hooks ... was focused to the analysis of the length-species compositions of catch by years and SSRU while using ...
Meeting Document : WG-FSA-17/56 : Auteur(s): S. Kasatkina
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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 ... three species were estimated using the generalised yield model developed for WG-FSA, based on survey ... 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 ...
Meeting Document : WG-FSA-97/30 : Auteur(s): de la Mare, W.K., Williams, R., Constable, A.
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Inter-annual variation in condition index of the mackerel icefish Champsocephalus gunnari
Abstract: Mackerel icefish (Champsocephalus gunnari) are widespread on the South Georgia (54 degS ... , 36 deg W) shelf. Analysis of results on condition index indicated a strong inter-annual variation ... the region. Years when krill were scarce and condition index was consequently low, were consistent ... with years when indices from land-based krill predators also indicated krill were scarce. Author(s ...
Meeting Document : WG-EMM-96/43 : Auteur(s): Parkes, G., Everson, I., Kock, K.-H.