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Report of ACAP Working Group on Status and Trends Agreement on the Conservation of Albatrosses and Petrels – Status and Trends Working Group
Abstract: 1. The first Session of the Meeting of the Parties (MOP1) of the Agreement on the ... Conservation of Albatrosses and Petrels (ACAP) agreed to review the population status, trends and demography of ... albatrosses (21 species) and petrels (seven species) listed on Annex 1 of the Agreement (MOP1 Final Report ... aim of collecting and collating information on breeding numbers and critical population and ...
Meeting Document : WG-FSA-06/40
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A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05
Abstract: A standardised CPUE analysis was used to determine factors affecting bycatch rates of ... were vessel, area, and depth. Catch rates of rattails were highest along the shelf edge (SSRUs 88.1E ... , 88.1I, 88.1K and 88.2E) in depths from 600 to 1000 m, and there was an order of magnitude difference in ... rattail catch rates between different vessels. Examination of vessel characteristics showed that catch ...
Meeting Document : WG-FSA-05/24 : Autor(es): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
Abstract: This paper investigates the influence of mixing of fish, and the uneven distribution of ... linear model of the South Georgia toothfish fishery, simulating fish movements within this system and ... overlaying various combinations of tagging and recapture effort to investigate bias. The fishable grounds ... uneven distribution of animals was simulated by adjusting an average movement rate downwards when animals ...
Meeting Document : WG-FSA-SAM-05/6 Rev. 1 : Autor(es): D.J. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom)
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Assessing the feasibility of regional surveys of land-based predator abundance in the Southern Ocean: a framework for decision making and planning
Abstract: In 2000 WG-EMM discussed the need for region-wide and circum-Antarctic estimates of ... abundance of land-based predators. At the 2001 meeting of WG-EMM it was proposed that a workshop be held in ... 2002 to assess the feasibility of such broad-scale surveys, and a small intersessional correspondence ... group was formed to scope out the terms of reference and method of operation for the workshop. The ...
Meeting Document : WG-EMM-02/45 : Autor(es): C. Southwell (Australia)
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Assessment of yield and status of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean: implications for managing by-catch in CCAMLR fisheries
Abstract: This paper assesses the status and abundance of M. carinatus on BANZARE Bank ... Model (GYM) used previously by the CCAMLR Working Group on Fish Stock Assessment. Estimates of ... elsewhere in the world. The trawl survey data was used to calculate estimates of biomass and density for the ... area and showed that M. carinatus did not appear to be aggregated over any part of BANZARE Bank. The ...
Meeting Document : WG-FSA-99/69 : Autor(es): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
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Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region
Abstract: Based on a survey of Dissostichus eleginoides in the Heard Island region in April 1999 ... ) to provide an assessment of biomass and stock structure in the vicinity of Heard, (ii) to examine the ... of Dissostichus eleginoides at Heard Island in the southern Indian Ocean and South Georgia Island in ... slower growing than those at South Georgia. This raises questions as to the appropriateness of the ...
Meeting Document : WG-FSA-99/68 : Autor(es): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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DEVELOPMENT OF A REGISTRY OF VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
Abstract: Conservation Measure (CM) 22-06 requires the Secretariat to maintain an inventory of ... fishery and their Flag States of the location of VME risk areas and fine-scale rectangles. The Secretariat ... has established an interim VME registry for archiving notifications of encounters with VMEs during the ... course of research surveys (CM 22-06) and VME-indicator notifications from fishing vessels (CM 22-07 ...
Meeting Document : WG-FSA-09/06 : Autor(es): Secretariat
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ON THE STUDY OF FECUNDITY AND EGGS SIZE OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI NORMAN 1937
Abstract: The results of the microscopic analyses of the Antarctic toothfish (Dissostichus ... mawsoni) fecundity and eggs size, caught in December-March the Pacific and Indian Ocean area of the ... fecundity of the Antarctic toothfish: individual absolute fecundity by the largest oocytes, share of largest ... trophoplasmic oocytes and their diameter. The frequency of Antarctic toothfish females with the ovaries on IV ...
Meeting Document : WG-FSA-08/35 : Autor(es): S.V. Piyanova. A.F. Petrov and N.V. Kokorin (Russia)
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Midwater trawl catchability regarding quantitative estimation of krill biomass using the method of trawling surveys on abundance
distributional pattern in the surveyed area enable to increase reliability of the biomass estimates. Comparative ... analysis for catchability of fishery midwater trawls and small research trawls, when Isaaks-Kidd trawl was ... taken as an example, proved the latters not to be suitable for krill biomass estimation using method of ... surveyed ground and the biomass estimates were characterized by high relative error. Standard methods of ...
Meeting Document : WG-KRILL-91/32 : Autor(es): S.M. Kasatkina (USSR)
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UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS USING CATCH-AT-AGE DATA AND TWO YEARS OF SURVEY ABUNDANCE-AT-AGE DATA
Abstract: The integrated assessment of Patagonian toothfish, Dissostichus eleginoides, for the ... combination of fishery and year had available at least 50 aged fish. For the trawl fisheries that were divided ... parameter values were logically applied to both types of data. For 2006 and 2007 random stratified trawl ... the coefficient of variation (CV) for the abundance-at-age, assuming a lognormal distribution, each ...
Meeting Document : WG-SAM-09/09 : Autor(es): S.G. Candy (Australia)