Resultados de la búsqueda
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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)
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A PRELIMINARY BALANCED TROPHIC MODEL OF THE ECOSYSTEM OF THE ROSS SEA, ANTARCTICA, WITH EMPHASIS ON APEX PREDATORS
Abstract: We report on the development of a mass balanced carbon-budget trophic model of the Ross ... Sea as a step towards investigating ecosystem effects of the fishery for Antarctic toothfish ... (Dissostichus mawsoni). The model has 30 trophic groups representing all the major biota of the Ross Sea. Many ... of the lower trophic level species in the model are grouped by functional role because information is ...
Meeting Document : WG-EMM-08/42 : Autor(es): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
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ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW
Abstract: An uncertainty heretofore has existed over the importance of Antarctic toothfish ... (Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the ... relative weight that should be given to direct, observational evidence of predator diet composition, as ... opposed to indirect evidence from scat and biochemical analysis. As a result of this assessment, it is ...
Meeting Document : WG-EMM-08/22 : Autor(es): D. Ainley and D. Siniff (USA)
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Fish in the diet of the blue-eyed shag Phalacrocorax atriceps at the South Shetland Islands: six years of monitoring studies
Abstract: In this document we inform on the results of six years monitoring changes in the diet ... of the Blue-eyed Shag Phalacrocorax atriceps as reflected by the analysis of regurgitated pellets ... collected at two localities of the South Shetland Islands. The comments are mainly focused on Gobionotothen ... gibberifrons and Notothenia rossii, species of particular interest for CCAMLR. Notothenia rossii appeared in ...
Meeting Document : WG-EMM-96/31 : Autor(es): Barrera-Oro, E., Casaux, R.
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Incidental mortality of seabirds associated with longline fishing in Subarea 48.3 – preliminary results of scientific observations onboard the Chilean longliner, Puerto Ballena, from March to May 1996
Abstract: Estimates of the number of seabirds taken incidentally in longline fisheries on ... observations on the by-catch of seabirds during a cruise of the Chilean longliner 'Puerto Ballena' in ... Statistical Subarea 48.3. A total of 118 dead black-browed albatrosses, 3 dead grey-headed albatrosses, 46 ... setting of lines had been restricted to nighttime as required in order to comply with Conservation Measure ...
Meeting Document : WG-FSA-96/31 : Autor(es): Selling, J., Kock, K.-H.