Resultados de la búsqueda
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A simulation study of krill fishing by an individual Japanese trawler
statistics collected at present (centred primarily on catch per fishing time) are of low utility in detecting ... Abstract: A model is set up for the operation (which includes both searching and fishing) of a ... Japanese krill trawler over a half-month period, and the output is compared to statistics from a sample of ... response of the index, or a response rather smaller in relative magnitude than the biomass decline. Catch ...
Meeting Document : SC-CAMLR-VI/BG/38 : Autor(es): D.S. Butterworth (United Kingdom)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2014/15) is the final one of the first three-season research which ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... x seabed analogy method using updated CCAMLR C2 data and reference area sizes. The occurrence of ... juvenile fish for each ice shelf block suggests that the recruitment occurs along the ice-shelf zones of ...
Meeting Document : WG-SAM-15/04 : Autor(es): Delegation of Japan
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
at-sea observations of cetaceans. Sighting data examined in this study were obtained during a series ... Abstract: This paper examines temporal changes in distribution and sighting density indices of ... in EMM-15 that an analysis of historical cetacean surveys in IWC Area II could provide a context for ... of Antarctic sighting cruises for whale assessment purposes organized by the International Whaling ...
Meeting Document : WG-EMM-16/26 : Autor(es): L.A. Pastene and T. Hakamada
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2010–11
and vice versa.. The total number of recaptures in 2010 and 2011 was at a similar level to 2007 and ... Abstract: Descriptive analyses of the toothfish tagging programme in Subareas 88.1 and 88.2 are ... updated, including summaries of data for the 2011 season. Overall, a total of 28 458 Antarctic toothfish ... recaptured since 2001. In recent years, most vessels have achieved or exceeded the target tagging rate of one ...
Meeting Document : WG-FSA-11/46 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Oxygen and carbon stable isotopes in otoliths record spatial isolation of Patagonian toothfish (Dissostichus eleginoides)
depletion of δ13C at South Georgia compared to the Patagonian Shelf were most likely linked to differences ... otoliths of oceanic fish can resolve water masses and geographic areas, promising a powerful multivariate ... side of a population boundary, and otolith δ18O and δ13C values were measured to see if they could ... distinguish South American-caught fish from those taken in the Antarctic. Values of δ18O and δ13C predicted ...
Meeting Document : WG-FSA-08/P03 : Autor(es): J.R. Ashford and C.M. Jones
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
Abstract: The current season (2014/15) is the final one of the first three-season research which ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... estimator was largely different from that using the CPUE method. Predicted numbers of tag recaptures from ... during 2013-14 seasons. Understanding of the resource structure through clarification of their life ...
Meeting Document : WG-SAM-15/03 : Autor(es): Delegation of Japan
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An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05
Abstract: An updated descriptive analysis of the toothfish tagging programme carried out in ... . A total of 4903 Antarctic toothfish have been released and 89 recaptured, and 443 Patagonian ... toothfish released and 9 recaptured. For the last two years, when tagging has been part of the Conservation ... Measure, New Zealand vessels have tagged between 1.0 and 2.77 toothfish per tonne of catch. Tagging rates ...
Meeting Document : WG-FSA-05/34 : Autor(es): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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Foraging movements of the shy albatross Diomedea cauta breeding in Australia; implications for interactions with longline fisheries
cauta breeding at two sites of Tasmania, Australia (Albatross Island in western Bass Strait and Pedra ... Abstract: Satellite telemetry was used to identify the foraging zones of Shy Albatrosses Diomedca ... Branca to the south) to assess their level of interaction with longline fisheries. Adult birds from both ... Branca foraged between the colony and the southeastern edge of the continental shelf. The distances ...
Meeting Document : WG-FSA-97/52 : Autor(es): Gales, R., Hedd, A., Brothers, N., Robertson, G.
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A descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in the Ross Sea up to 2005/06
Abstract: A descriptive analysis of the toothfish tagging programme carried out in Subareas 88.1 ... for non- New Zealand vessels for the first time. However, tag data were only available for all of ... these vessels for 2005 and for about half of these vessels for 2004. A reported total of 8888 Antarctic ... 20% of the recaptures could not be matched to a release observation, mainly because of missing ...
Meeting Document : WG-FSA-SAM-06/09 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Foraging movements of the shy albatross Diomedea cauta breeding in Australia; implications for interactions with longline fisheries
Abstract: Satellite telemetry was used to identify the foraging zones of Shy Albatrosses Diomedea ... cauta breeding at two sites off Tasmania, Australia (Albatross Island in western Bass Strait and Pedra ... Branca to the south) to assess their level of interaction with longline fisheries. Adult birds from both ... Branca foraged between the colony and the southeastern edge of the continental shelf. The distances ...
Meeting Document : WG-FSA-98/33 : Autor(es): N. Brothers, R. Gales, A. Hedd and G. Robertson (Australia)