Resultados de la búsqueda
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
correction. This paper examines the implications for estimates of krill yield from using the biased estimate ... , while the second is a generalised yield model. The decision rules relate to the effects of a specified ... long-term annual yield (γ) on (i) the probability of the spawning stock being reduced below a set ... proportion of SB0 during a projection run (probability of critical depletion) and (ii) the median status of ...
Meeting Document : WG-EMM-97/45 : Autor(es): de la Mare, W.K., Constable, A.J.
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Revised estimates of yield for Electrona carlsbergi based on a generalised version of the CCAMLR krill yield model
Abstract: Traditional methods for estimating yield per recruit as a function of fishing mortality ... can result in inappropriate high estimates of yield that could lead to depletion of stocks because of ... widely varying recruitment patterns, overestimation of the abundance of the stock and age of the most ... probabilities of the stock of Electrona carlsbergi becoming depleted over a 20 year period. These projections ...
Meeting Document : WG-FSA-94/21 : Autor(es): A.J. Constable and W.K. de la Mare (Australia)
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Population subdivision and distribution of Euphausia superba in the region of the Antarctic Peninsula and adjacent waters in relation to fishery development
Abstract: Analysis of original and literature data for the past 10 years pertaining to the region ... -of the Antarctic Penunsula and adjacent waters points to a relationship between the distribution of ... krill and the waters of two major circulation systems- those of the Weddell Sea and the Bellingshausen ... Sea inhabited by separate subpopulations of the species. The latter are predominant in the region ...
Meeting Document : SC-CAMLR-VIII/BG/21 : Autor(es): Delegation of USSR
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ESTIMATION OF IUU CATCHES OF TOOTHFISH INSIDE THE CONVENTION AREA DURING THE 2009/10 FISHING SEASON
Abstract: ABSTRACT The paper presents an estimate of IUU catches of toothfish during the 2009/10 ... 2010 to take into account new information submitted in respect of two vessels fishing in Divisions ... 58.4.1 and 58.4.4a. Changes from version 1 are highlighted in bold. ESTIMATION OF IUU CATCHES OF ... prepared an estimate of IUU catches of Dissostichus spp. in the Convention Area for the 2009/10 season ...
Meeting Document : WG-FSA-10/06 : Autor(es): Secretariat
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Zonal structure of zooplankton communities in the Southern Ocean south of Australia: results from a 2150 km continuous plankton recorder transect
Abstract: The Southern Ocean south of Australia is oceanographically complex, being characterized ... by double branches of the Sub-Antarctic Front (SAF), Polar Front (PF) and Southern Antarctic ... Circumpolar Current (SACCF), in addition to the Southern Boundary (SB) of the ACC. From 25 February to 3 March ... and 66.36°S, crossing each of these frontal zones. Surface temperature, salinity, and fluorescence ...
Meeting Document : WS-BSO-07/P6 : Autor(es): Hunt, B.P.V. and G. Hosie
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Monitoring of relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, in years 2000 to 2003
Abstract: The monitoring program of demersal fish at inshore sites of the South Shetland Islands ... has continued in Potter Cove from 2000 to 2003, covering a continuous sampling period of twenty years ... net catches of fjord fishes of the species Notothenia rossii and Gobionotothen gibberifrons in ... 1983-1999, is still evident. At Potter Cove, higher catches of N. rossii were obtained from 1991 to ...
Meeting Document : WG-FSA-03/89 : Autor(es): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)
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Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... used to collect zooplankton and fish larvae. Mean relative biomass of Antarctic krill Euphausia superba ... , in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ...
Meeting Document : WG-EMM-02/32 Text : Autor(es): A. Sala, M. Azzali and A. Russo (Italy)
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CCAMLR spatial management GIS: potential applications for informing the development of a representative system of MPAs
GIS facilitates easy mapping of CCAMLR’s spatial management framework and associated conservation ... measures, and standardises this information in terms of projection and coastline position. Access to ... spatially derived parameters through the database may be useful in the design and implementation of ... protected areas as part of the development of a representative system of Antarctic marine protected areas ...
Meeting Document : WS-MPA-11/20 : Autor(es): S.M. Grant, S.L. Hill and P.T. Fretwell (UK)
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THE HISTOLOGICAL ANALYSIS OF OOGENESIS AND MATURITY OF ANTARCTIC TOOTHFISH FROM THE ROSS SEA
Abstract: The results of the histological analysis of the Antarctic toothfish (Dissostichus ... morphological parameters, indices of gonads and condition by Fulton have been described. The histological ... criteria of the assessment of the ovary maturity stages, cytological parameters of oocytes and type of the ... toothfish oogenesis have been determined. At the maturing of toothfish, ovaries from the stages III to IV ...
Meeting Document : WG-FSA-09/26 : Autor(es): S.V. Piyanova and A.F. Petrov (Russia)
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Geographical aspects of utilising resources of krill (Euphausia superba)
Abstract: This paper presents data on the distribution of E. superba in the Atlantic sector and ... adjacent waters with an emphasis on subregions lying beyond the current fishing grounds of the Scotia Sea ... . In a number of subregions on the periphery of the Weddell Gyre (both to the north and south), as well ... as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ...
Meeting Document : WG-EMM-96/05 : Autor(es): Makarov, R.R.