Resultados de la búsqueda
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Long-term forecast of the conditions of krill (Euphausia superba Dana) fisheries in the Antarctic part of the Atlantic Ocean
Antarctic krill (tones per hour) as the major indicator of its abundance and density of concentrations in ... index of krill abundance in the first of the abovementioned areas and inversely linked with one in the ... concentrations of crustaceans in topographic whirlpools on the shelf of the South Orkney Islands and South ... (Euphausia superba Dana) fisheries in the Antarctic part of the Atlantic Ocean Approval: Approved ...
Meeting Document : WG-EMM-07/15 : Autor(es): V.A. Bibik and V.A. Bryantsev (Ukraine)
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Estimates of bird by-catch by IUU vessels in Subarea 48.3, 1998–2001
rates in the illegal fishery, and that these were more likely to be similar to the bird catch rates made ... by other vessels in 1997. Including the Isabel data and weighting the bootstrap estimates of bird ... catch rate by the number of hooks observed leads to revised estimates of total catch in 1999, 2000 and ... bootstrapping option, which should be used by WG-FSA/IMAF in future estimates of bird bycatch rates are: a ...
Meeting Document : WG-FSA-03/56 : Autor(es): D.J. Agnew (United Kingdom)
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By-catch of rays in the 2002/03 toothfish fishery around South Georgia
Abstract: The 2002/2003 fishing season was the first in which three new policies for rays were ... tried: • It was the first in which vessels were asked to cut off all rays at water level to assist ... survival and conservation of rays; • It was the first in which very good quality information was available ... from all observers’ tally periods on the catch rates of rays cut off the line; • In 2003 the UK, with ...
Meeting Document : WG-FSA-03/58 : Autor(es): D.J. Agnew, J. Pearce and M. Endicott (United Kingdom)
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Fishing intensity of Russian fleet krill fishery in Subarea 48.2 and 48.3
Abstract: The purpose of this paper was estimating commercial fleet impact on krill population in ... -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... aggregated in the fishing grounds was assessed basing on 22800 haul data. The analysis of Soviet fleet ... competitive with dependent predators for the krill resource. In this case, a certain spatial overlap of the ...
Meeting Document : WG-EMM-02/62 : Autor(es): S.M. Kasatkina and V.F. Ivanova (Russia)
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Review of rattail and skate by-catch and analysis of rattail standardised CPUE from the Ross Sea toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
Abstract: Little is known about the bycatch of skates, rays and macrourids in the target longline ... fishery for toothfish in the Ross Sea. Following concerns about the accuracy of reporting of bycatch ... raised by the 2001 CCAMLR bycatch subgroup, the processes for recording bycatch in this fishery were ... macrourid bycatch in this fishery. The review of data suggest that the toothfish fishery has not yet had a ...
Meeting Document : WG-FSA-02/40 : Autor(es): R.G. Blackwell and S.M. Hanchet (New Zealand)
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Crab by-catch in the experimental toothfish pot fishery around South Georgia, 2000
occurred in shallow water, generally shallower than 800m. P. anamerae, which has not been reported for this ... area previously, had an intermediate depth distribution from 400 – 800m. P. formosa was present in ... . There were some differences in catch rate5 between areas, with lowest catch rates being encountered ... between Shag Rocks and South Georgia, and highest for P. formosa in deep water north of South Georgia. Few ...
Meeting Document : WG-FSA-00/24 : Autor(es): T. Daw, D. Agnew, M. Purves, G. Pilling and C. Yau (United Kingdom)
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Estimation of catch rate and mean weight in the exploratory Dissostichus fisheries across Divisions 58.4.1 and 58.4.2 using generalised additive models
Abstract: The exploratory longline fisheries in Divisions 58.4.1 and 58.4.2 (primarily targeting ... make predictions of catch rate and mean weight across fishable depths in both Divisions. Catch rates ... across the region are low compared to those in other Dissostichus fisheries within the Convention Area ... potential and population structure in other exploratory fisheries is recommended. Author(s): D.C. Welsford ...
Meeting Document : WG-FSA-11/35 : Autor(es): D.C. Welsford (Australia)
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How much is enough? analysis of the net sampling effort in the Elephant Island area necessary to adequately assess and describe krill and zooplankton assemblages during summer
Abstract: Data from 1995-1997 US Antarctic Marine Living Resources (AMLR) Program surveys in the ... interspecific relations of krill, salps and other macrozooplankton taxa in the Elephant Island area during ... comparisons are made to examine possible changes in sampling adequacy resulting from ecological changes ... relations of krill, salps, and other zooplankton taxa in the Elephant Island area. Author(s): Loeb, V ...
Meeting Document : WG-EMM-97/32 : Autor(es): Loeb, V.
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Interactions between longline vessels and seabirds in Kerguelen waters and a method to reduce seabird mortality
Abstract: In recent years, a new longline fishery for the fish Dissostichus eleginoides has ... developped in the vicinity of South Georgia and Kerguelen islands, two internationally important breeding ... activity in Kerguelen waters in February 1994. Between 100 and 600 seabirds were always observed behind the ... Weimerskirch and Guy Duhamel (France) Title: Interactions between longline vessels and seabirds in Kerguelen ...
Meeting Document : WG-IMALF-94/12 : Autor(es): Yves Cherel, Henri Weimerskirch and Guy Duhamel (France)
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Catch and effort data for the longline fishery in Subarea 48.3 – comparison of data reported to CCAMLR and data acquired by the UK between 1994 and 1996
around South Georgia were compared with data reported to CCAMLR and held in CCAMLR's longline ... as single records. A number of hauls yielding zero catches present in the data acquired by the UK ... have not been reported to CCAMLR. In 1996 less than 10% of the hauls showed large discrepancies between ... in reporting bycatch and incidental mortality of birds. Author(s): Parkes, G.B., Pearce, J., Agnew ...
Meeting Document : WG-FSA-97/37 : Autor(es): Parkes, G.B., Pearce, J., Agnew, D.J.