Search results
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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 : Author(s): S.V. Piyanova. A.F. Petrov and N.V. Kokorin (Russia)
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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 : Author(s): 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 : Author(s): D.J. Agnew, G.P. Kirkwood, J. Pearce and J. Clark (United Kingdom)
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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 : Author(s): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
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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 : Author(s): Selling, J., Kock, K.-H.
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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 : Author(s): S.G. Candy (Australia)
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Ross Sea Biodiversity, Part I: validation of the 2007 CCAMLR Bioregionalisation Workshop results towards including the Ross Sea in a representative network of marine protected areas in the Southern Ocean
Abstract: This report provides the scientific basis, validating the results of the CCAMLR ... Bioregionalization Workshop (2007) as well as the report of ASOC (2010), for identifying the Ross Sea as one of 11 ... areas deserving close scrutiny for inclusion in a network of marine protected areas. CCAMLR (2007 ... ) identified the Ross Sea as an area of high biodiversity on the basis of its high physical heterogeneity; ASOC ...
Meeting Document : WG-EMM-10/11 : Author(s): D.G. Ainley, G. Ballard and J. Weller (USA)
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Calculation of indices of sea-ice concentration using digital images from the National Snow and Ice Data Centre
Abstract: A method is described for calculating indices of sea ice distribution from digital data ... distributed by the National Snow and Ice Data Centre, Colorado, USA. Data consist of an image of the Antarctic ... , made up of 312x332 pixels, each having a dimension of 25x25km, for every day in the year. Primary data ... of the distance of sea ice from CEMP sites, the northerly position of the sea ice edge, and the ...
Meeting Document : WG-EMM-95/11 : Author(s): Agnew, D.J.
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Future work of the Working Group on Ecosystem Monitoring and Management and implications for the format of its meetings
distributed predationpressure and randomly determined recruitment. The effects of uncertainty with regard ... fishing pressure are not. However, WG-EMM also maintains amonitoring program that could provide some of ... for assembling thesecomponents was developed at the first meeting of WG-EMM and considerable ... progresshas been made on a number of contributing initiatives. WG-EMM currently considers awide range of ...
Meeting Document : SC-CAMLR-XIX/06 : Author(s): Convener WG-EMM
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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 : Author(s): Secretariat