Résultats de la recherche
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Sampling toothfish from longlines with unequal probabilities
Abstract: To obtain a representative sample of the catch taken by toothfish longliners, CCAMLR ... observers are recommended to sample a quota of the first 30 fish that are caught during a sampling session ... proportion to toothfish density on the line. The present recommendation therefore indicates sampling with ... vital rates. To resolve this, either the probabilities need to be incorporated in the analysis of ...
Meeting Document : WG-FSA-03/85 : Auteur(s): J.R. Ashford (USA)
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FISHING INDUSTRY POLLUTION OBSERVATIONS AND ASSOCIATED MARINE MAMMAL ENTANGLEMENT RECORDS AT SOUTH GEORGIA, SUMMER 1996/97
Abstract: From various locations on or near the mainland of South Georgia, between November 1996 ... . Of the fur seals five (42%) were female (three adult, two juvenile) and seven (58%) were male (one ... . Marine debris was collected from a 1 km stretch of beach on the south coast of South Georgia between 24 ... -26 December 1996. The photographs (originals in colour) illustrate the diversity of debris, most ...
Meeting Document : CCAMLR-XVI/BG/26 : Auteur(s): Delegation of the United Kingdom
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REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48
proposed models to evaluate krill catch allocation options for Area 48 (the SAM calendar). The observations ... translate these observations into numerical terms (the numerical calendar). We provide spatially-resolved ... reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... than that suggested by WG-SAM, so the numerical calendar for this taxon deviates from the SAM calendar ...
Meeting Document : WG-EMM-08/10 : Auteur(s): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)
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Finfish research proposals for Subarea 48.6 by Koryo Maru 11 for 2012/13 (this is a revision of WG-SAM-12/12)
Abstract: This paper presents a revised plan for research fishing by the Koryo Maru 11 for the ... 2012/13 fishing season, and revises and replaces WG-SAM-12/21. The proposed research fishing is ... conducted by OLRAC-SPS (2012) – tabled at WG-FSA-12 as a separate paper. The research plan presented here ... draws on the results presented by OLRAC-SPS (2012) and addresses knowledge gaps highlighted by that ...
Meeting Document : WG-FSA-12/30 : Auteur(s): C. Heiniken and R. Ball (South Africa)
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Krill conversion factors
Abstract: Published information on conversion factors to estimate krill removals from the amounts ... with those currently in use although the differences are such that use of the traditional factors may ... introduce large errors into the estimation of removals. It is uncertain whether discarding is a common ... practice in the fishery, if it is then the use of any of the conversion factors will result in a serious ...
Meeting Document : WG-EMM-01/39 : Auteur(s): I. Everson (United Kingdom)
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Net diagrams for Norwegian vessels notified for krill fishery in 2015/16 – Notification ID 86750, 86751, 86780 and 86781
Abstract: In accordance with CM 21-03, Annex 21-03 A, attached are the net diagrams and marine ... mammal exclusion device diagram referred to in the krill fishery notifications for 2015/16 submitted for ... the three Norwegian vessels (Juvel, Saga Sea and Antarctic Sea). The pages 1 – 6 relate to the vessel ... Juvel, and the pages 7 – 10 relate to the vessels Saga Sea and Antarctic Sea. Author(s): Delegation of ...
Meeting Document : WG-EMM-15/01 : Auteur(s): Delegation of Norway
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1989/90 stock status and TAC assessment for Champsocephalus gunnari in Subarea 48.3 (South Georgia)
(South Georgia) Abstract / Description: The 1989/90 stock status and TAC assessment for Champsocephalus ... gunnari in South Georgia Subarea (48.3) has been made using the biostatistic material for 1982/83 to 1987 ... /88 collected by Soviet scientists. VPA tuning has been made by the Laurec-Shepherd method (1985 ... ) using standardized fishing effort. For the beginning of the 1989/90 fishing season, the stock was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 15–27 : Auteur(s): Frolkina, Zh.A. and P. Gasyukov
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Proposal for further trials aimed at reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia
Abstract: IW longlines are effective in reducing the bycatch of birds in toothfish fisheries, but ... by putting the line closer to the seabed they increase the bycatch of macrourids and rajids ... . Experiments reported elsewhere demonstrate that some of this effect can be mitigated by the use of fish rather ... . We intend to trial two alternative configurations against IW systems in 48.3 in the 2007/08 fishing ...
Meeting Document : WG-FSA-07/30 : Auteur(s): Delegation of the United Kingdom
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Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries
Abstract: In the fall of 2002, the U.S. National Marine Fisheries Service (NMFS) purchased 300 ... vessels in the Bering Sea and Gulf of Alaska. This new guide replaces a dichotomous key on looseleaf paper ... with black and white drawings. The purpose of using this new educational tool is to enhance the ability ... of fishery observers to accurately identify seabirds as they come up in the sampled fishing gear ...
Meeting Document : WG-FSA-03/24 : Auteur(s): T. Hass and S. Davis (USA)
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Determining toothfish otolith structure using oxytetracycline at South Georgia – a preliminary report
trawl surveys, experimental pot fishing and longline fishing. Some of the fish tagged on longliners in ... 2002 were injected with oxytetracycline (OTC) to mark the otoliths for age validation purposes. The ... otoliths of some of these chemically marked recaptures of the 2003 season were examined and the preliminary ... results are presented here. Two fish marked with strontium-chloride (SrCl2) during the 2002 trawl survey ...
Meeting Document : WG-FSA-03/80 : Auteur(s): M.G. Purves, M. Belchier, D.J. Agnew, G. Moreno and T.R. Marlow (United Kingdom)