Search results
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Marine debris, entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula, 2010/11
Island. In total, 177 items of marine debris were found in association with seabird colonies at Bird ... Island, with the highest overall number (80 items) associated with grey-headed albatrosses, and the ... highest incidence of fishery-related debris (39 items) associated with wandering albatrosses. No ... 2009/10. Debris associated with seabird colonies was below the mean level in wandering albatross and ...
Meeting Document : SC-CAMLR-XXX/BG/05 : Author(s): Delegation of the United Kingdom
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A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL
production are still very uncertain. Recently, circumpolar krill databases, combined with growth models and ... abundance of 8x1014 postlarvae with biomass of 379 million tonnes (Mt). These values are based on a ... of relative krill density around Antarctica with the most recent, acoustics-derived, value for the ... the total stock, with total biomass of ~133 Mt in January-February 2000. Gross postlarval production ...
Meeting Document : WG-EMM-08/17 : Author(s): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
effects of ocean warming on krill biomass were strongest in the northern Scotia Sea, with a ≥ 40% decline ... below an established depletion threshold (75% of its unimpacted level), with consequent risks for some ... unimpacted level, with up to a 50% chance of falling below the depletion threshold. Simulated krill fishing ... offset the increased risks associated with ocean warming in our model to some extent. These results ...
Meeting Document : WG-EMM-18/P02 : Author(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
single value for males and females combined, with a uniform prior within the base model used in 2017 for ... Antarctic toothfish in the Ross Sea region. The model MCMCs estimated M =0.11 y-1 (0.09–0.13 y-1) with B0 ... mortality was lower and estimated the precautionary yield higher (3419 t compared with 3258 t). MPD ... estimated with relatively high precision and with no bias. Further investigations will need to be carried ...
Meeting Document : WG-SAM-2019/04 : Author(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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Marine debris, entanglements and hydrocarbon soiling at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2018/19
gazella) were observed at Bird Island and two at King Edward Point with no marine mammal entanglements ... with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (35 items ... ; 43 %). One incidence of an entangled wandering albatross (Diomedia exulans) was reported; a bird with ... entanglements was below the long-term mean at all sites surveyed. Debris associated with seabird colonies was ...
Meeting Document : SC-CAMLR-38/BG/28 : Author(s): Delegation of the United Kingdom
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Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
recordings could be compared with longline catches. Data quality was generally good. Of the 84 line ... recordings, 68 were considered suitable for acoustic analysis. Poor data quality was associated with strong ... issues with data quality were interference from another echosounder, and the occurrence of a double ... deadzone would be over 50 m high for a sea-bed with a slope of 20º. The problem of the acoustic deadzone ...
Meeting Document : WG-FSA-03/28 : Author(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Marine mammals and demersal longlines fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of the depredation level
(Arctocephalus sp.) interactions with longlines fishing operations were reported by observers onboard of fishing ... and 2005. In Crozet waters, 71% of the 1308 longlines presented marine mammals interactions with ... most of the interactions with the fishery. In Kerguelen waters CPUE tended to decrease in presence of ... sperm whales alones or in association with fur seals. Author(s): C. Roche, N. Gasco, G. Duhamel and C ...
Meeting Document : WG-FSA-06/63 : Author(s): C. Roche, N. Gasco, G. Duhamel and C. Guinet (France)
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A proposal to report marine casualties to CCAMLR
Conservation Measure 10-02 (Licensing and inspection obligations of Contracting Parties with regard to their ... a report to be shared with the Commission. The proposal is consistent with Article 94(7) of the ... Convention on the Law of the Sea with respect to fishing vessels operating under CCAMLR’s jurisdiction in the ...
Meeting Document : CCAMLR-XXX/24 : Author(s): Delegations of the USA and New Zealand
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Revised research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Fundamentals and procedures (this is a revision of WG-SAM-12/13)
are proposed, a depletion experiment together with the tag of some specimens using the DeLury model ... achieving the objectives three study areas with high historical effort have been selected in different SSRUs ... with four different scenarios related to the extent of the area. The regression coefficients between ... achieving the objectives with this research plan is high. Author(s): R. Sarralde, L.J López ...
Meeting Document : WG-FSA-12/69 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)
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Winter and summer foraging location of Adélie penguins from Mawson, Davis and Casey
with a diet which is largely comprised of the fishery target species Antarctic krill (Euphausia superba ... relation to potential direct or indirect overlap with the krill fishery. Here we present winter and summer ... km away from their breeding colonies with their journey being closely associated with the sea-ice ...
Meeting Document : WG-EMM-13/08 : Author(s): L. Emmerson, N. Kokubun and C. Southwell (Australia)