Résultats de la recherche
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Recent trends in numbers of Crozet shags breeding at the Prince Edward Islands
decreased by more than 70% from 840 pairs in 1994/95 to 220 pairs in 2003/04 and then increased to some 500 ... pairs in 2008/09. The trends are thought to have been influenced by breeding success, which averaged ... were similar trends in numbers breeding and breeding success of gentoo penguins Pygoscelis papua, which ... doubled between the summers of 2001/02 and 2008/09. In 2008/09, some 600 pairs of Crozet shags were ...
Meeting Document : WG-EMM-10/P02 : Auteur(s): R.J.M. Crawford, P.G. Ryan, B.M. Dyer and L. Upfold
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Further development of a spatially explicit population dynamics operating model for Antarctic toothfish in the Ross Sea region
younger fish were found predominantly in southern areas of the Ross Sea shelf, mature fish on the slope ... and spawning fish in the northern areas of the Ross Sea region. Fits to the observations were ... generally good. Further investigations are recommended in order to further validate and refine this model ... data in areas not fished to date. In addition, further external validation diagnostics need to be ...
Meeting Document : WG-SAM-13/35 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
overlap in Area 48, with particular emphasis on Subarea 48.1. We used habitat utilization data for ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... large differences in total catch in Subarea 48.1 suggests plausible local impacts on gentoo penguin ...
Meeting Document : WG-EMM-14/36 : Auteur(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
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Fishery selection for Patagonian toothfish in CCAMLR Subarea 48.3, asymptotic or dome shaped?
Abstract: Characterisation of fishery selection is key to reducing uncertainty in the ... waters as they age and increase in size and, in combination with the practical difficulties associated ... Patagonian toothfish (D. eleginoides) in Subarea 48.3 is used to determine whether there is sufficient ... age with depth, is suggested as an indicator that a dome selection pattern is unlikely in the 48.3 ...
Meeting Document : WG-SAM-15/29 : Auteur(s): C. Darby, V. Laptikhovsky and M. Soeffker (United Kingdom)
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Parasites of the Antarctic toothfish (Dissostichus mawsoni Norman, 1937) (Perciformes, Nototheniidae) in the Pacific sector of the Antarctic
species of commercial fisheries in the Antarctic. It is an endemic and is found along the shelf of ... Antarctica, as well as on the slopes of seamounts, underwater elevations and islands in the sub-Antarctic. It ... infection in the Pacific sector of the Antarctic. Specimens were examined during commercial longline fishing ... in the Ross Sea and the Amundsen Sea in January-February 2013. Fourteen species of parasites were ...
Meeting Document : WG-EMM-16/P05 : Auteur(s): I.I. Gordeev and S.G. Sokolov
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Parasites of the Antarctic toothfish (Dissostichus mawsoni Norman, 1937) (Perciformes, Nototheniidae) in the Pacific sector of the Antarctic
species of commercial fisheries in the Antarctic. It is an endemic and is found along the shelf of ... Antarctica, as well as on the slopes of seamounts, underwater elevations and islands in the sub-Antarctic. It ... infection in the Pacific sector of the Antarctic. Specimens were examined during commercial longline fishing ... in the Ross Sea and the Amundsen Sea in January-February 2013. Fourteen species of parasites were ...
Meeting Document : WG-FSA-16/P01 : Auteur(s): I.I. Gordeev and S.G. Sokolov
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Development of a vessel safety checklist and debriefing protocol for use in SISO
Abstract: In accordance with the recommendations of the 2013 Panel Review of the CCAMLR Scheme of ... of SISO recommends the performance of a vessel safety check (see proposed Annex II in CCAMLR-XXXVI/25 ... approved by the Commission (proposed A(e bis) in CCAMLR-XXXVI/25). This paper provides examples of vessel ... safety checklists and debriefing forms and protocols for the Commission’s reference in developing ...
Meeting Document : CCAMLR-XXXVI/BG/16 : Auteur(s): Delegation of the USA
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Uncertainty in reported geographical distribution and weight of krill catches from Norwegian krill fishing vessels operating continuous fishing systems
ensure catch reporting in accordance with the present conservation measure (CM 21-03) and to investigate ... potential errors in historical catch report data. As a response, the Norwegian delegation presented a list ... estimate variability in the conversion from krill holding tank volumes to krill biomass indicated that a ... reported catch time and actual catch time since the krill catch is kept in holding tanks before being ...
Meeting Document : WG-EMM-18/22 : Auteur(s): G. Skaret, T. Knutsen, F. Grebstad and O.A. Bergstad
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Preliminary evaluation of two feedback management strategies for the krill fishery in Subareas 48.1–48.3
for the krill fishery will compromise the Commission’s ability to achieve the objectives in Article II ... management strategies in which the overall catch limit is dynamically redistributed among small scale ... ‑2) or (2) changes in penguin abundance. Relative to the case in which the overall catch limit is ... statically distributed among SSMUs in proportion to catches taken during 2009-2016, we found that the two ...
Meeting Document : SC-CAMLR-XXXVII/BG/12 : Auteur(s): Delegation of the USA
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Meta-analysis of catch reporting in CCAMLR exploratory fisheries
Abstract: The Secretariat has prepared a meta-analysis of the target and by-catch reported in ... variation between gear type and area. However, it appears that the differences in reporting between Members ... that were identified in 2015 remain apparent in the data. Measures to improve the quality of bycatch ... data reported in CCAMLR fisheries may include the development of a detailed manual on by-catch sampling ...
Meeting Document : WG-FSA-18/14 : Auteur(s): CCAMLR Secretariat