Resultados de la búsqueda
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Revision of the commercial catch at age of the Antarctic icefish Champsocephalus gunnari over the period 1976/77 to 1990/91
Abstract: A revision of the calculation of total international catch at age of Champsocephalus ... proposed that the revised catch at age be used for future assessment of the C. gunnari fishery at South ... Georgia using VPA. Author(s): G.B. Parkes (United Kingdom) Title: Revision of the commercial catch at ... gunnari over the period 1976/77 to 1990/91 is presented. This uses iterative application of two age length ...
Meeting Document : WG-FSA-93/29 : Autor(es): G.B. Parkes (United Kingdom)
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A review of methodologies aimed at avoiding and/or mitigating incidental catch of protected seabirds.
aimed at reducing mortalities of protected seabirds, marine mammals and reptiles and corals due to ... at reducing seabird interactions with the trawl nets. Author(s): Bull, L. Title: A review of ... methodologies aimed at avoiding and/or mitigating incidental catch of protected seabirds. Approval: Approved ... Abstract: Information on methods aimed at mitigating incidental mortality resulting from ...
Meeting Document : WG-FSA-05/P8 : Autor(es): Bull, L.
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In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species
cumulative distributions (CDF's) of Δσbs derived from the differences in abs measurements at two ... target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz ... Abstract: In-situ measurements of target strength (TS) were made of Antarctic zooplankton ... (Euphausia superba and Salpa thompsoni) at 120 kHz and 200 kHz. Concurrently, a two meter Isaacs-Kidd ...
Meeting Document : WG-Krill-94/12 : Autor(es): D.A. Demer and R.P. Hewitt (USA)
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Validation of age determination in Notothenia coriiceps, by means of a tag-recapture experiment at potter cover, South Shetland Islands
Abstract: Of 409 Notothenia coriiceps specimens tagged and released at Potter Cove, South ... analysis between scales taken at recapture and otolith cross sections of the same individual allowed a ... coriiceps, by means of a tag-recapture experiment at potter cover, South Shetland Islands Approval ... Shetland Islands, in successive years from 1989 to 1992, 9 were recaptured at the same site after periods ...
Meeting Document : WG-FSA-94/12 : Autor(es): E.R. Barrera-Oro and R.J. Casaux (Argentina)
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Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... datasets was integrated using the effective samples’ size calculated at the level of each haul. An ... research studies aiming at collecting more biological data and getting a better understanding of the ... assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at ...
Meeting Document : WG-FSA-11/28 : Autor(es): A. Relot-Stirnemann (France)
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Models of tag shedding for double tagging as a function of time at liberty and approximate solutions for the single tagging model in CASAL
-estimates the correct proportion of fish that have retained at least one tag, and are therefore detectable ... , as a function of time at liberty. This over-estimation is shown to be significant and the ... Abstract: The model of tag shedding implicit in CASAL is that of Kirkwood and Walker (KW) (1984 ... software applies this model correctly for fish released with a single tag but does not have the facility at ...
Meeting Document : WG-SAM-11/12 : Autor(es): S.G. Candy (Australia)
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Estimation of size at maturity and calculation of an appropriate size limit for male Paralomis formosa
tradeoff between goodness of fit and smoothness was used as an estimate morphometric size at maturity ... . Bootstrapping techniques provided a bias-corrected estimate of morphometric size at maturity (sBc) equal to 80 ... regulation set forth in CM 91/XIV, Paragraph 10. Author(s): Watters, G. Title: Estimation of size at ... Abstract: A number of weighted smoothing splines were fit to data on carapace length and size ...
Meeting Document : WG-FSA-96/35 : Autor(es): Watters, G.
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Indicators of krill flux at various spatial-temporal based on the data of multi-year research carried out in the Scotia Sea. Comments on krill fishery management
under the influence of its drift at various spatial-temporal scales. Author(s): S. Kasatkina and V ... . Shnar Title: Indicators of krill flux at various spatial-temporal based on the data of multi-year ... Abstract: The subject of research was geostrophic circulation of water masses, spatial ... distribution of krill density, intensity of water flows (m³/s) and krill biomass (g/m³) transported by water ...
Meeting Document : WG-EMM-2019/58 : Autor(es): S. Kasatkina and V. Shnar
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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 ... 1983-1999, is still evident. At Potter Cove, higher catches of N. rossii were obtained from 1991 to ... those found in the early 1980s. At Harmony Cove, the relative abundance of N. rossii showed an increase ... of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South ...
Meeting Document : WG-FSA-03/89 : Autor(es): E. Barrera-Oro, E. Marschoff, R. Casaux and B. Gonzalez (Argentina)
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Aspects of the ecology of the bigeye grenadier at South Georgia
hemisphere. The size at which 50% of females had started to mature (Lint 50) for M. holotrachys was 21cm (Lpa ... ) and occurred at around 9 years old. Estimates of natural mortality and Pauly’s growth performance ... Abstract: Aspects of the ecology of the Bigeye grenadier, Macrourus holotrachys caught as bycatch ... estimates suggest that M. holotrachys is a long lived and moderately slow growing species, reaching ages of ...
Meeting Document : WG-FSA-03/16 : Autor(es): S.A. Morley, T. Mulvey, J. Dickson and M. Belchier (United Kingdom)