Resultados de la búsqueda
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Downward adjustments to local catch limits for the krill fishery in Subarea 48.1
adjustments to local catch limits for the krill fishery in Subarea 48.1. We use the term local catch limit to ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13). We propose downward ... krill fishery in Subarea 48.1 (see Watters et al. 2016). Our proposal to make downward adjustments is ... crèche can predict poor recruitment; when the chicks in a cohort crèche at a relatively young age, cohort ...
Meeting Document : WG-EMM-16/46 : Autor(es): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
48.2 (South Orkney Island). The sampling stations were set in approximately the same geographical ... ). As a result of nearing the maximum research catch specified in Subarea 48.1 (95% of authorized ... proposed stations completed (n=13). In Subarea 48.2, we were unable to complete the planned number of ... resulted in a very low sample size with which to estimate standing stock biomass, and thus results ...
Meeting Document : WG-SAM-18/25 : Autor(es): Delegation of Chile
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season
model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B ... model resulted in a slightly lower estimate of initial biomass than the 2006 base case. The inclusion of ... data resulted in a more optimistic assessment. The more optimistic estimate was probably due to the ... lower recapture rate by non-New Zealand vessels, particularly in the early years. The reason for this is ...
Meeting Document : WG-FSA-07/37 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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An illustrative management procedure for exploring dynamic feedback in krill catch limit allocations among small-scale management units
Abstract: A Management Procedure (MP) approach is proposed to assist in advising regarding the ... subdivision of the precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the ... -species Operating Model (SMOM) developed in Plaganyi and Butterworth (2006) is used as an operating model ... the static allocation options, to ensure that the likely performances of these MPs in terms of low ...
Meeting Document : WG-EMM-06/28 : Autor(es): É. Plagányi and D. Butterworth (South Africa)
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Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions
quadratic function in length. This function was calibrated using random length frequency (LF) data collected ... fish falling in a particular length bin, analagous to a death in a given time interval in survival ... (GLMM). The GLMM was fitted to the number of fish in a bin using a complementary log-log link function ... and binomial sample size defined as the number of fish in that bin or a larger length bin. The ...
Meeting Document : WG-FSA-06/35 : Autor(es): S.G. Candy (Australia)
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The applicability of international conservation instruments to the establishment of marine protected areas in Antarctica
, depending on their specific provisions, full application in Antarctic waters may be difficult, inappropriate ... concluded that although direct application of other international conservation agreements is in most cases ... timeframe in which these should take place. In addition, the consideration of Antarctic waters in parallel ... establishment of marine protected areas in Antarctica Approval: Approved ...
Meeting Document : WG-EMM-04/32 : Autor(es): S. Grant (United Kingdom)
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Streamer lines to reduce seabird by-catch in longline fisheries
Abstract: This two-page flyer targets commercial longline fishermen in Alaska. Aspects of the ... streamer line developed in the course of research in Alaskan demersal longline fisheries are described ... reduce seabird by-catch in longline fisheries Approval: Approved ...
Meeting Document : WG-FSA-03/18 : Autor(es): E.F. Melvin (USA)
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Fishing with pots in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)
, with the purpose of determining the presence of Dissostichus spp. in Subareas 48.1, 48.2 and 88.3. In ... ) with 51.2 g/pot. In general, P. anemerae was captured in all researched subareas, with a higher yield ... in Subarea 48.2 (548.8 g/pot). Title: Fishing with pots in the Antarctic region (CCAMLR Statistical ...
Meeting Document : WG-FSA-98/20
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Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands in February 1997
), Notolepis coatsi (3), Benthalbella elongata (1) and Neopagetopsis ionah (1), were captured as by-catch in 16 ... , Electrona antarctica of the Myctophidae was the most abundant. This species was found in 12 hauls, and its ... made in previous studies. In the present survey, the abundance of by-catch was well correlated to the ... time zone of trawling, which is thought to depend on a large amount of bathypelagic fishes in the ...
Meeting Document : WG-EMM-97/72 : Autor(es): Iwami, T., Ichii, T., Naganobu, M., Kawaguchi, S.
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Dense populations of the Antarctic scallop (Adamussium colbecki) in Terra Nova Bay (Subarea 88.1J): potential VMEs adjacent to the Terra Nova Bay ASPA (No. 161)
Mario Zucchelli is located, have been largely investigated in the last couple of decades. All the ... abundant and conspicuous species in the area, although some of its denser populations are found outside the ... perspectives. Particularly interesting is the evidence that populations in Terra Nova Bay area seem to be ... genetically different to some extent, and are even more different from those in the McMurdo Sound area ...
Meeting Document : WG-EMM-12/23 : Autor(es): M. Chiantore and M. Vacchi (Italy)