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Long-distance movements of Patagonian (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni) from fishery-based mark-recapture data
found closer to the Antarctic continental shelf and generally south of the Polar Frontal Zone. Data from ... existing tagging studies indicate that both species are generally non-migratory with the majority of ... and released of which 10 511 (9.4%) have been recaptured; for Antarctic toothfish there have been 69 ... 067 fish tagged and released of which 2 072 (3.0%) have been recaptured; the median distance between ...
Meeting Document : WG-FSA-17/06 : Автор(ы): CCAMLR Secretariat
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Line weights of constant mass (and sink rates) for Spanish-rig Patagonian toothfish longline vessels
collections of rocks enclosed in netting bags. The netting bags abrade on the seabed, rocks are lost and ... use of torpedo-shaped steel weights. Steel weights are smaller, lighter for equivalent mass, more ... chartered Spanish-rig longline vessel to determine the statistical relationship in sink rates of longlines ... equipped with bags of rocks (4 kg, 6 kg and 8 kg) and lines with steel weights of equivalent masses. The ...
Meeting Document : WG-FSA-07/15 : Автор(ы): G. Robertson (Australia), C.A. Moreno, E. Gutiérrez (Chile), S.G. Candy (Australia), E.F. Melvin (USA) and J.P. Seco Pon (Argentina)
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Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
Subarea 48.4, catching 54 t of toothfish. A total of 291 D. eleginoides and 1 D. mawsoni were tagged and ... released during fishing operations. This represents a very high tagging rate of 5.4 fish per tonne of catch ... distributions of abundance around the fishing area. There were two tag recaptures in 2007, both of D ... . eleginoides. These were recaptured 84km and 14km from their points of release. 3. The UK proposes to continue ...
Meeting Document : WG-FSA-07/32 : Автор(ы): J. Roberts and D.J. Agnew (United Kingdom)
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Results of scientific observation on board RKT-S (cannery fishing super trawler) Konstruktor Koshkin in Statistical Area 48 in March–June 2003 as compared with previous seasons
of vessel operations, biological state of krill, results of identification of the principal size ... groups with the aim of defining their belonging to specific generations. It gives the analysis of the ... weather and ice conditions, assessment of krill abundance in aggregations and of fisheries situation in ... (Ukraine) Title: Results of scientific observation on board RKT-S (cannery fishing super trawler ...
Meeting Document : WG-EMM-04/10 : Автор(ы): V.A. Bibik and S.A. Klementiev (Ukraine)
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Population numbers of fur seals at Prince Edward Island, Southern Ocean
Abstract: During the period 17–22 December 2001, the onshore distribution and the abundance of ... Prince Edward Island (46°38´S, 37°57´E). Two breeding colonies of Antarctic fur seals were located on the ... south-east coast of the island; the first a mixed (with Subantarctic fur seals) breeding colony with an ... estimated 24 pups on a vegetated promontory on the northern section of Boggel Beach, and the second, a ...
Meeting Document : WG-EMM-03/18 : Автор(ы): M.N. Bester, P.G. Ryan and B.M. Dyer (South Africa)
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Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
Abstract: This report presents results from a pilot study to determine the feasibility of ... . These analyses focused on the subset of acoustic data collected when setting longlines so acoustic ... recordings could be compared with longline catches. Data quality was generally good. Of the 84 line ... issues with data quality were interference from another echosounder, and the occurrence of a double ...
Meeting Document : WG-FSA-03/28 : Автор(ы): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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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 ... and 48.3 amounted to at least 95% of total catch. The calculations were based on the Soviet fleet haul ... -by-haul data using a model of probabilistic-statistical theory of fishery systems developed in the ... AtlantNIRO. Intensity of commercial fleet impact on krill population, on biomass and density of krill ...
Meeting Document : WG-EMM-02/62 : Автор(ы): S.M. Kasatkina and V.F. Ivanova (Russia)
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An updated assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity and extension taking commercial catch-at-length data into account
Abstract: The CPUE-based Age-Structured Production Model (ASPM) assessment of this resource by ... Brandão et al. (2001) is updated to take account of further catch and effort data that have become ... available over the past year. This leads to an improved picture of resource status compared to a year ... previously, but a spawning biomass nevertheless still estimated to be heavily depleted and at a level of only ...
Meeting Document : WG-FSA-02/76 : Автор(ы): A. Brandão, D.S. Butterworth, B.P. Watkins and L. Staverees (South Africa)
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Foraging interactions of wandering albatrosses Diomedea exulans breeding on Marion Island with longline fisheries in the southern Indian Ocean
Abstract: Concerning numbers of Wandering Albatrosses Diomedea exulans are killed when they ... attempt to scavenge baited hooks deployed by long-line fishing vessels. We studied the foraging ecology of ... Wandering Albatrosses breeding on Marion Island in order to assess the scale of interactions with known long ... island, in warmer waters, and showed high spatial overlap with areas of intense tuna Thunnus spp. long ...
Meeting Document : WG-FSA-01/10 : Автор(ы): D.C. Nel, P.G. Ryan, J.L. Nel, N.T.W. Klages (South Africa), R.P. Wilson (Germany) and G. Robertson (Australia)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1998 winter and 1998/99 pup-rearing season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... here. The number of seals observed entangled in the winter (13) represented an 86 % increase on the ... 1997 winter total and an 87 % decrease on the highest previous total (1992). The proportion of animals ... winter and the second lowest level (with 1995) since records started. The number of seals observed ...
Meeting Document : SC-CAMLR-XVIII/BG/05 : Автор(ы): Delegation of the United Kingdom
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