Résultats de la recherche
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Upward adjustments to local catch limits for the krill fishery in Subarea 48.1
during the fishing season, and 3) a decision rule that can be used to increase local catch limits when ... demonstrate that a simple index based on normalized CEMP parameters can be used to categorize predator ... values, agrees generally with expert opinion, and suggests that indices of foraging trip duration, fledge ... Abstract: Here we compile three vignettes that, together, provide the basis for making upward ...
Meeting Document : WG-EMM-16/47 : Auteur(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G – a discussion paper
grounds based on historic CPUE and a maximum local exploitation rate. It should be noted that the catch ... recapture in this region we further recommend that the tagging rate in this area be increased to 3 tags per ... 2 fish have been recaptured. It is likely that the lack of tag recaptures in this region has been ... caused primarily by the poor spatial overlap of released tagged fish with subsequent fishing effort. By ...
Meeting Document : WG-SAM-14/28 : Auteur(s): S.M. Hanchet and S.J. Parker (New Zealand)
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A proposal for a standardised survey for Antarctic toothfish in McMurdo Sound
mammalian predators in the area. Age composition, physiology, and diet objectives can be met with the ... methodology for a standardised hook and line survey were trialled in McMurdo Sound. Data collected will be ... integrated with ongoing collaborative research programmes to determine the importance of toothfish to ... current design. However, power analysis based on historical catch data suggests that the sample size ...
Meeting Document : WG-FSA-15/33 : Auteur(s): S.J. Parker, S.M. Hanchet and S. Mormede (New Zealand)
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Data on krill, Euphausia superba Dana, consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)
100-500 m in the area between 30 and 80°E, the total fish stock was evaluated to be 551.300 t ... . Seasonal (December-April) E.superba consumption by these fishes made 960.000 t. The data are given on ...
Meeting Document : SC-CAMLR-X/BG/11 : Auteur(s): Delegation of USSR
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An integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
and trap sub-fisheries. Compared to the 2015 assessment that was accepted by WG-FSA-15 to be used for ... its higher productivity with the updated maturity parameters, meant that the catch limit that ... eleginoides) fishery at Heard Island and McDonald Islands in CCAMLR Division 58.5.2 with data until end of the ... data to aid with the estimation of year class strength and selectivity functions of the trawl, longline ...
Meeting Document : WG-FSA-17/19 : Auteur(s): P. Ziegler
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Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) (2013-14 season) from Division 58.4.1 by Spain
slightly with the values used in the Ross sea assessment for males. Author(s): L.J. López-Abellán, M.T.G ... parameters obtained using length-age pair values are: L ∞: 175.7, k: 0.1078 and t 0: 1.528 for females; L ... ∞: 150.3, k: 0.1491 and t 0: 1.809 for males; and L ∞: 169.8, k: 0.1087 and t 0: 1.168 all combined. These ...
Meeting Document : WG-FSA-16/58 : Auteur(s): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro
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Changes in population size of large Procellariiformes breeding in the French sub-Antarctic islands: potential influence of southern fisheries and particularly long lining
indicate that most albatross and giant petrel populations have markedly declined. Demographic studies ... indicate that these declines are mainly the result of increased adult mortality. This high rate of ... mortality has been suspected to be the result of mortality incurred in long-line fisheries. Satellite ... tracking studies of breeding birds and band recoveries of non breeding birds indicate that during and ...
Meeting Document : WG-IMALF-94/11 : Auteur(s): Henri Weimerskirch and Pierre Jouventin (France)
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
for CCAMLR fisheries. It is proposed that the working groups of the Scientific Committee be revised to ... develop a work program that does not require all issues to be addressed every year. The Working Groups are ... Abstract: The work of the Scientific Committee is expanding with a duplication of many functions ... streamline the work, help reduce the number of groups and time needing to be attended by our experts and to ...
Meeting Document : SC-CAMLR-XXIV/BG/30 : Auteur(s): Delegation of Australia
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First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island
assumed to cause interpretation differences was the position of the first increment that corresponded with ... that the outer edge of the first translucent zone would correspond with the end of the first year’s ... otoliths. It has been recorded that differences in otolith interpretation exist between institutes ... routinely ageing D. eleginoides, resulting in differences of ageing data presented. One area that was ...
Meeting Document : WG-FSA-05/61 : Auteur(s): K. Krusic-Golub, C. Green and R. Williams (Australia)
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
; this probably requires that scientific surveys be planned to operate in small areas concurrently with ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... changes in within-concentration krill distribution parameters only. Indices that distinguish primary ... concentrations perform better, but collection of the requisite data may not be practical. Other approaches (e.g ...
Meeting Document : WS-KCPUE-89/04 : Auteur(s): D.S. Butterworth (South Africa)