Resultados de la búsqueda
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
Abstract: The work of the Scientific Committee is expanding with a duplication of some functions ... insufficient time at present in the existing working groups, such as consideration of marine protected areas in ... a CCAMLR context. It is proposed that the working groups of the Scientific Committee be revised to ... streamline the work and to help reduce the number of groups needing to be attended by our experts. The ...
Meeting Document : WG-EMM-05/35 : Autor(es): A.J. Constable (Australia)
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Progress on the application of an age-structured production model fitted to commercial catch-rate and catch-at-length data to assess the toothfish (Dissostichus eleginoides) resource in the Prince Edward Island vicinity
Abstract: The Age-Structured Production Model (ASPM) presented to previous meetings is refined to ... allow the estimation of a selectivity-at-age function that decreases at larger ages. This is, in ... particular, to accommodate the view of the August 2003 meeting of the Subgroup on assessment methods that 0.2 ... yr-1 is likely the largest value of natural mortality M that is plausible for toothfish. Catch, catch ...
Meeting Document : WG-FSA-03/97 : Autor(es): A. Brandão and D.S. Butterworth (South Africa)
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Effects of the Antarctic Circumpolar Current on fishing for squid (Illex Argentinus) in the Atlantic sector of the Southern Ocean
Abstract: The paper introduces several approaches to assessment of hydrological situation in the ... Atlantic sector of the Southern Ocean (the South-West Atlantic). The analysis of the SST maps suggests that ... hydrological factors depend on the intensity of two currents, the Antarctic Circumpolar Current and the ... Falkland current The paper shows correlation between a certain hydrological situation and fishing for squid ...
Meeting Document : WG-EMM-99/15 : Autor(es): G.P. Vanyushin and T.B. Barkanova (Russia)
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ANALYSIS OF SCIENTIFIC OBSERVER DATA FROM THE RUSSIAN KRILL TRAWLER 'MAXIM STAROSTIN' IN THE SOUTH ORKNEY ISLANDS REGION (SUBAREA 48.2) DURING THE SEASON 2008-2009
Abstract: In 2008 fishing season the Russian flagged vessel ' Maxim Starostin ' started ... fishing operations for krill in the Convention area. The vessel used both conventional and continuous ... of the ' Maxim Starostin '. Their observation plan targeted at monitoring the amount and ... size/sex composition of the krill catches, bycatch, spatial distribution and biological condition of ...
Meeting Document : WG-EMM-09/29 : Autor(es): D. Sologub (Russia)
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
Abstract: The results of Butterworth et al. (1991) relating potential krill yield to a pre ... -exploitation survey estimate of krill biomass are extended as specified by the Third Meeting of Working Group ... on Krill. The most important of these extensions is integration over the ranges of uncertainty for a ... number of the model parameters. Results are provided for the probability of spawning biomass falling ...
Meeting Document : WG-KRILL-92/04 : Autor(es): D.S. Butterworth, G.R. Gluckman and S. Chalis (South Africa)
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Pairwise tag performance: testing the sensitivity of the tag detection index and the mortality of tagged fish index
developed in 2012 and further developed in 2013, using a methodology which controls for the spatial and ... all other fishing events which occurred in the same time and place (i.e. within a specific distance ... and in the same fishing season). The method showed that when the confounding effects of variable ... with respect to the tag detection index in the Ross Sea region. Here we present the results of ...
Meeting Document : WG-FSA-13/50 : Autor(es): S. Mormede (New Zealand)
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Analysis of inter-vessel variability of krill length distribution in the catches obtained in the fishery in the Bransfield Strait (Subarea 48.1)
Abstract: The inter-vessel variability of krill distribution in the catches obtained in the ... Bransfield Strait (SSMU APBSW and APBSE) in April and May 2014 and 2015 was analyzed. The presence of ... statistically significant differences in the krill length distributions from catches obtained by the vessels ... operating in the fishing grounds with spatio-temporal overlapping is shown. At the same time, significant ...
Meeting Document : WG-EMM-17/28 : Autor(es): S. Kasatkina
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Analysis of longline fleet operation on the Patagonian toothfish (Dissostichus eleginoides) in the subarea of the South Georgia Island (48.3) in 1989–2003
Abstract: The main characteristics of Patagonian toothfish (Dissostichus eleginoides) catch ... dynamics off the South Georgia Island and Shag Rocks (sub-area 48.3) for the 1989-2003 period are given ... . Taken the intensity of fleet operation as an example in the sub-area, it was confirmed a decrease in ... catches both for 1000 hooks and vessel/day. The given objective long-term data evidenced a substantial ...
Meeting Document : WG-FSA-03/98 : Autor(es): N.V. Kokorin and A.F. Petrov (Russia)
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Development of the krill stock in the elephant island region during the 1996/97 season
Abstract: During December 1996 the Elephant Island standard grid was surveyed for krill and salps ... . Krill and salps were present at almost all of the stations, other epipelagic zooplankton species were ... was much higher than in previous years. The krill stock was dominated by length classes around 35 mm ... , representing age group 2+ and the year-class 1994/95 (proportional recruitment R2 = 0.85). The year-class 1995 ...
Meeting Document : WG-EMM-97/16 : Autor(es): Siegel, V.
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A proposed process for the management of model updates and software versions for stock assessment used within CCAMLR with the example of the CASAL software
Abstract: We propose a process by which to select the version of software generally used for ... stock assessments in CCAMLR, with the specific example of the CASAL software used for stock assessment ... . The latest published version of any stock assessment software approved by CCAMLR should be used by ... default, unless the latest development version is necessary, in which case it is the responsibility of the ...
Meeting Document : WG-SAM-14/32 : Autor(es): S. Mormede and A. Dunn (New Zealand)