Résultats de la recherche
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Committee for Environmental Protection: 2019 Annual Report to the Scientific Committee of CCAMLR
Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... Environmental Protection (CEP) has been steadily increasing over the last few years to the mutual benefit of ... both. In order to avoid duplicate reporting between the two committees and following discussions ... between the Chairs of the CEP and SC-CAMLR, the report of the CEP meeting is presented to SC-CAMLR by the ...
Meeting Document : SC-CAMLR-38/BG/07 : Auteur(s): CEP Observer to SC-CAMLR, Dr P. Penhale (USA)
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Entanglement of Antarctic fur seals (Arctocephalus gazella) by man made debris at Bird Island, South Georgia, during the 2005 winter and 2005/06 breeding season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... Georgia for the sixteenth consecutive winter (2005) and eighteenth consecutive summer (2005/06) are ... reported here. Two entanglements were observed in the winter, a decrease of 60% from the previous year, and ... the lowest number seen since records began in 1990. One of these involved a male pup entangled in ...
Meeting Document : SC-CAMLR-XXV/BG/13 : Auteur(s): Delegation of the United Kingdom
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
Abstract: The upper-arm of the length-dependent fishing selectivity function for trawlers fishing ... for Patagonian toothfish around Heard Island (Division 58.5.2) was modelled as the exponential of a ... assuming that, for the upper range of lengths, fish are fully selected by longliners but not by trawlers ... . To estimate the trawl gear selectivity while simultaneously adjusting for relative availability of ...
Meeting Document : WG-FSA-06/35 : Auteur(s): S.G. Candy (Australia)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–G for the years 2002–03 to 2010–11
Abstract: This paper describes the first Bayesian sex and age structured population stock ... , and G (SSRUs 88.2C–G). For modelling purpose, we split the region into two fisheries: south of 70.2° S ... fish are caught and most of the effort has been concentrated. For our reference case we used a selected ... trips data set and fitted to tag and fishery data from the northern fishery only. Model fits to the data ...
Meeting Document : WG-FSA-11/43 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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REPORT ON A RANDOM STRATIFIED TRAWL SURVEY TO ESTIMATE DISTRIBUTION AND ABUNDANCE OF DISSOSTICHUS ELEGINOIDES AND CHAMPSOCEPHALUS GUNNARI IN THE HEARD ISLAND REGION (DIVISION 58.5.2) FOR 2008 AND 2009
Abstract: The random stratified trawl surveys (RSTS) for 2008 and 2009 were successfully ... completed on the RV Southern Champion, continuing the series that commenced in 1997. Catches in 2008 were ... generally reduced from the previous year’s survey, with the catch of toothfish being one third of that for ... the previous year and those of grey rock cod, unicorn icefish and skate species down by half. Catches ...
Meeting Document : WG-FSA-09/34 : Auteur(s): G.B. Nowara (Australia)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
Abstract: We analysed the available data from vessel and scientific observer logbooks from the ... ) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... species caught in the fishery over the period 2003-4 to 2011-12 are also presented. For the Antarctic ...
Meeting Document : WG-SAM-12/33 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
Abstract: We analysed the available data from vessel and scientific observer logbooks from the ... ) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... species caught in the fishery over the period 2003-4 to 2011-12 are also presented.. For the Antarctic ...
Meeting Document : WG-FSA-12/38 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H for the years 2002–03 to 2012–13
Abstract: This paper presents the Bayesian sex and age structured population stock assessment of ... 88.2C–H). We examined several models including the 2013 implementation of the 2011 base case (R1), using ... the revised data selection method (R2), using a logistic selectivity for the northern fishery (R3 ... ), down-weighting the age data (R4), and having annual age length keys in the north (R5). The stock ...
Meeting Document : WG-FSA-13/52 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2015/16
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... extends from the SSRU 58.4.1C to the SSRU 58.4.2A, and the other one to the SSRU 58.4.1H. The population ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. During the 2004-2014 ...
Meeting Document : WG-SAM-15/07 : Auteur(s): Delegation of the Republic of Korea
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2015/16
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... extends from the SSRU 58.4.1C to the SSRU 58.4.2A, and the other one to the SSRU 58.4.1H. The population ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. During the 2004-2014 ...
Meeting Document : WG-FSA-15/56 : Auteur(s): Delegation of the Republic of Korea