Resultados de la búsqueda
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Analysis of seamount-specific catch and tagging data in the Amundsen Sea, SSRU 88.2H
areas. These metrics were also calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish ... seldom move among seamounts within the complex, and residence time on particular seamounts is typically 1 ... -2 years before fish depart from these seamounts, presumably back to the slope SSRUs. Therefore, it ... is recommended that the stock assessment include only recaptures of tagged fish that have been at ...
Meeting Document : WG-SAM-14/27 : Autor(es): S.J. Parker (New Zealand)
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Chronology of previously submitted scientific documents, and updated maps and analyses supporting MPA planning in the Ross Sea region
Abstract: A proposal for a Marine Protected Area in the Ross Sea region has been submitted to ... CCAMLR and iteratively updated since 2012 consistent with Scientific Committee advice. The purpose of ... this paper is to: 1) identify previously submitted scientific documents supporting MPA planning in the ... scientific papers to reflect the boundaries of the current MPA proposal and with updated fishery data, to ...
Meeting Document : SC-CAMLR-XXXIII/BG/23 Rev. 1 : Autor(es): Delegations of New Zealand and the USA
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Progress report on collaborative research for otolith chemistry of Antarctic toothfish Dissostichus mawsoni in the Southern Ocean
Abstract: Otolith chemical analysis is one of important and useful approaches to reveal the stock ... structure and connectivity of Dissostichus mawsoni in the Southern Ocean. Recalling the suggestion from WG ... -FSA 2018 about the international collaboration on otolith microchemistry of D. mawsoi, this progress ... report summarized the update of this work. The result indicated that the heterogeneity in stock structure ...
Meeting Document : WG-FSA-2019/61 : Autor(es): G.P. Zhu
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NEW REGIONAL-SCALE SURVEYS OF THE ADÉLIE PENGUIN BREEDING POPULATION IN PRYDZ BAY: A STEP TOWARDS IMPROVED ESTIMATION OF KRILL CONSUMPTION IN EAST ANTARCTICA
ecosystem models that might be used to inform the management of impacts due to climate change or fisheries ... priority region for new survey work to improve population estimates. Prydz Bay is considered to have the ... largest breeding population of Adélie penguins in east Antarctica but the most recent abundance survey was ... critical to understand if population numbers in Prydz Bay have changed in the past three decades ...
Meeting Document : WG-EMM-11/32 : Autor(es): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson and J. Lieser (Australia)
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Autoliners and seabird by-catch: do line setters increase the sink rate of integrated weight longlines?
vessels in the Kerguelen and Crozet Islands Patagonian toothfish fisheries to deter seabirds, ostensibly ... by expediting gear sink rates. A trial was conducted in the Ross Sea in 2007 to determine the ... longlines set with and without a line setter were identical, including in the first few metres of the water ... column where seabird interactions are likely to be most intense. The results reveal that line setters ...
Meeting Document : WG-FSA-07/13 : Autor(es): G. Robertson (Australia), J. Williamson, M. McNeill (New Zealand), S. Candy (Australia) and N. Smith (New Zealand)
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Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
Abstract: 1. During the 2006/07 fishing season one UK and one New Zealand vessel fished in ... 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 ... the mark-recapture experiment in Subarea 48.4 in 2007/08. Initial estimates of population size will be ...
Meeting Document : WG-FSA-07/32 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)
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Krill distribution pattern due to water structure and dynamics near the South Sandwich Islands in January–February 2000 (Krill Synoptic Survey 2000)
48.4 near South Sandwich Islands. The main water masses were revealed and their boundaries determined ... : waters of Antarctic Circumpolar Current, Weddell Sea and Secondary Frontal zone of Weddell Gyre. The ... schematic maps of geostrophic waters circulation are made. The joint analysis of environment parameters and ... length frequency, maturity stages and waters inhabited. Distribution of the 1st krill group (juveniles 25 ...
Meeting Document : WG-EMM-00/33 : Autor(es): V. Sushin, P. Chernyshkov, V. Shnar, F. Litvinov and K. Shulgovskiy (Russia)
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Krill distribution related to water structure and dynamics on the South Georgia shelf in January 2000 (AtlantNIRO-BAS Core Programme 1999/2000)
distribution were carried out in two standard boxes on the shelf and slope northwest and northeast of South ... apparent. In the western box krill density was nearly 0.2 glm3 and in the eastern box was 1.8- 4.7 glm3 ... • Juvenile krill of 30-36 mm length were observed in the shelf zone and larger specimens, including spawning ... . According to these preliminary results, krill abundance on the South Georgia shelf in January 2000 was lower ...
Meeting Document : WG-EMM-00/51 : Autor(es): V.A. Sushin (Russia), P.P. Chernyshkov (Russia), F.F. Litvinov (Russia), J.L. Watkins (United Kingdom) and A.S. Brierley (United Kingdom)
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Some comments on the procedure of krill target strength assessment in echosurveys
Abstract: The impact of midwater trawl selectivity and catchability upon TS and TS 1 kg estimates ... . Application of the proposed method of mean weighted TS 1 kg estimation provides the biomass estimation ... determined actually only by MSBS (or MVBSS) acoustic parameter distribution and independent on the midwater ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ...
Meeting Document : WG-EMM-98/21 : Autor(es): S.M. Kasatkina (Russia)
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Marine Protected Areas in the Southern Ocean: update on current status of designated areas
Abstract: The development of a representative system of Antarctic marine protected areas (MPAs ... ) will require up to date information on the location, conservation aims and current status of protected ... areas designated within the Convention Area. As at August 2011, there is one designated MPA managed by ... CCAMLR. In addition, the ATCM has designated 6 exclusively marine Antarctic Specially Protected Areas ...
Meeting Document : WS-MPA-11/19 : Autor(es): S.M. Grant and P.N. Trathan (UK)