Résultats de la recherche
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Seamount-specific biomass estimates from SSRU 88.2H in the Amundsen Sea derived from mark-recapture data
calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish seldom move among seamounts within the ... on almost every seamount in every year and usually in proportion to the level of tagging on the ... seamount in the previous year. Trends in local biomass estimates for individual seamounts and SSRU 88.2H ... overall showed a decline in biomass through time with a slight increase in biomass since 2012. The pattern ...
Meeting Document : WG-FSA-14/58 : Auteur(s): S.J. Parker and S. Mormede (New Zealand)
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Developments, considerations and recommendations by the land-based predator survey group: a summary and up-date
Abstract: A summary of considerations and decisions made by the correspondence group on land ... -based predator abundance is provided for comment by the Working Group. In order to complete ... specifications for future survey work, the correspondence group seeks advice from the Working Group on the ... relevant spatial unit for estimation in Area 48 and the required precision for estimation in each unit. A ...
Meeting Document : WG-EMM-05/24 : Auteur(s): C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, M. Goebel (USA) and P. Wilson (New Zealand)
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Risk categorisation for Macrourus whitsoni and Amblyraja georgiana in the Ross Sea
georgiana, which are the major bycatch species in the exploratory fishery for toothfish in the Ross Sea ... vulnerable to overfishing. The risk to A. georgiana is mitigated due to a CCAMLR programme to cut all skates ... from longlines whilst still in the water and release them. Macrourus whitsoni were categorized as ... overfishing, catch rates in the toothfish fishery have not declined, juveniles are not selected by the fishery ...
Meeting Document : WG-FSA-05/21 : Auteur(s): R.L. O’Driscoll (New Zealand)
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Description of an AD Model Builder implementation of the exact time of release and recapture stock assessment model of Tuck et al. (2003)
model and applied it to the stock of Patagonian Toothfish, Dissostichus eleginoides,at Macquarie Island ... the Working Group on Fish Stock assessment in 2000 (Tuck et al. 2000; CAMLR-XIX, 2000 paragraphs 3.126 ... , 3.127). The maximum likelihood estimation for this model has more recently been implemented in the AD ... Model Builder software by Dr Tuck. The AD Model Builder executable that implements Tuck et al. (2003) in ...
Meeting Document : WG-FSA-04/75 : Auteur(s): S.G. Candy, A.J. Constable and D. Erceg (Australia)
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ACCURACY OF BENTHIC INVERTEBRATE BY-CATCH IDENTIFICATION BY OBSERVERS OPERATING IN THE HEARD ISLAND AND MCDONALD ISLANDS PATAGONIAN TOOTHFISH LONGLINE FISHERY
Abstract: As a means of testing the accuracy of observer identifications and to provide ... additional data on benthic invertebrate by-catch; observers operating aboard the longline fishing vessel ... to Heard Island and McDonald Islands (HIMI) for onshore verification by taxonomists at the Australian ... Antarctic Division (AAD). Observers displayed a high level of accuracy (89%) in the identification of ...
Meeting Document : WG-FSA-09/23 : Auteur(s): T. Hibberd (Australia)
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Commercial krill fisheries in the Antarctic 1973–1988
Abstract: STATLANT data reported to the Commission for the Conservation of Antarctic Marine ... Living Resources (CCAMLR) are used to discern visible trends in catch and effort for the Antarctic krill ... (Euphausia superba) fishery between 1972/73 and 1987/88. With time the annual krill catch rose gradually to a ... 000t thereafter. Indications are that in terms of both catch and effort the Soviet and Japanese ...
Meeting Document : SC-CAMLR-VIII/BG/11 : Auteur(s): Delegation of South Africa
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Major outcomes from the third meeting of ACAP’s advisory committee
Abstract: The Third Meeting of the ACAP’s Advisory Committee was held in Valdivia, Chile from 19 ... – 22 June 2007. It was preceded by meetings of the Status and Trends Working Group on 16 June and the ... Seabird Bycatch Working Group on 17-18 June 2007. This paper provides a summary of the major outcomes of ... the meeting. Author(s): ACAP Secretariat Title: Major outcomes from the third meeting of ACAP’s ...
Meeting Document : WG-FSA-07/26 : Auteur(s): ACAP Secretariat
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CPUE, net towing depth and body length of krill during the winter operation of Japanese krill fishery around South Georgia
were calculated. The range of CPUE values in 1991 season (poor year of krill) was comparable to the ... from net towing depth. Net tow depth data implied that overall krill distribution in the the winter ... season might be deeper than the summer season. Interannual variability of vertical distribution was also ... suggeted. Length frequency distribution implied the evidence of strong krill influx from the Antarctic ...
Meeting Document : WG-EMM-96/51 : Auteur(s): Kawaguchi, S., Ichii, T., Naganobu, M.
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Recent information relevant to squid resources in the Convention Area
adjacent to the Convention Area, with a catch in excess of 12,000 tonnes. Recent improvements in processing ... , management of a Martialia fishery by CCAMLR would require a better understanding of the distribution and ... demography of the species. The results of recent studies of the ecological niche of Martialia at the Polar ... Frontal Zone are presented in SC/CAMLR/BG/??. Author(s): Delegation of the United Kingdom Title: Recent ...
Meeting Document : SC-CAMLR-XIV/BG/22 Rev. 1 : Auteur(s): Delegation of the United Kingdom
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The Dissostichus eleginoides fishery in Division 58.5.1 (Kerguelen Islands)
Abstract: The Kerguelen fishery (trawlers and long-liners) of Dissostichus eleginoides is ... analyzed in the ligth of the knowledge of life cycle of the species. Catches reach a similar cumulative ... the tendancies from the LFD and an index of abundance compared. Author(s): G. Duhamel (France) Title ... : The Dissostichus eleginoides fishery in Division 58.5.1 (Kerguelen Islands) Approval: Approved ...
Meeting Document : WG-FSA-93/15 : Auteur(s): G. Duhamel (France)