Resultados de la búsqueda
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2018/19
Abstract: The Amundsen Sea region toothfish fishery has been operating since 2003. The biological ... characterisation of the fishery showed a truncation of the right-hand limb of the age distribution between 2004 and ... the ASR be made a priority to develop annual age-length keys and age frequencies. We further recommend ... that catch limits in the ASR be calculated following the trend analysis rules developed by WG-FSA for ...
Meeting Document : WG-FSA-2019/12 : Autor(es): J. Devine and S. Parker
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Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web
previous years which had little or no winter sea-ice development. The hypothesized relationships between ... Abstract: There is a growing body of evidence that the climate of the Antarctic Peninsula region ... has been warming over the past 40 years with an associated decreased frequency of winters with ... extensive sea-ice development. These trends potentially will have a major impact on the structure and ...
Meeting Document : WG-EMM-96/21 : Autor(es): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.
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Standing stock, biology, diet and spatial distribution of demersal finfish from the 2003 US AMLR bottom trawl survey of the South Shetland Islands (Subarea 48.1)
. The standing stock for most species has fluctuated, with no signal of substantial year classes or ... Abstract: The United States Antarctic Marine Living Resources (U.S. AMLR) program has conducted ... bottom trawl surveys of the South Shetland Islands (Subarea 48.1) during the 1998, 2001, and 2003 austral ... patterns from the 2003 survey is presented. The spatial distributions and standardized densities for ...
Meeting Document : WG-FSA-03/38 : Autor(es): C.D. Jones (USA), K.-H. Kock, (Germany), J. Ashford, A. DeVries, K. Dietrich (USA), S. Hanchet (New Zealand), T. Near, T. Turk (USA) and S. Wilhelms (Germany)
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Distribution and size of Antarctic krill (Euphausia superba Dana) in the Polish commercial catches in the Atlantic sector of Antarctica in 1997–1999
the water, however, no clear evidence of vertical migrations was found. Between February and April ... Abstract: The distribution, density and length composition of krill in commercial concentrations ... were investigated in the regions of South Shetland, Elephant, South Georgia and South Orkneys in spring ... and summer 1997-1999. The concentration densities varied with area and season. The densest ...
Meeting Document : WG-EMM-01/13 : Autor(es): E. Jackowski (Poland)
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UPDATED BIOLOGICAL PARAMETERS FOR THE ANTARCTIC STARRY SKATE, AMBLYRAJA GEORGIANA, FROM THE ROSS SEA
examined in the laboratory. There was no significant difference between the median length at maturity for ... Abstract: Photographs of skates taken by observers on New Zealand toothfish longliners in the ... ). Nearly all of the skates caught were returned to the sea (discarded or tagged). A considerable proportion ... of these were returned in good condition and were considered likely to survive. Estimates of the ...
Meeting Document : WG-FSA-08/20 : Autor(es): M.P. Francis and S. Mormede (New Zealand)
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Indicators of krill flux at various spatial-temporal based on the data of multi-year research carried out in the Scotia Sea. Comments on krill fishery management
Abstract: The subject of research was geostrophic circulation of water masses, spatial ... flow at various spatial-temporal scales in the Scotia Sea. According the discussion at WG-EMM-2018 ... (paragraph 2.24-2.27), particular attention is paid to the special field studies across time to improve ... understanding of krill biomass dynamic. It has been shown that the formation of transport of krill in the ...
Meeting Document : WG-EMM-2019/58 : Autor(es): S. Kasatkina and V. Shnar
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Implementation and preliminary results from the synoptic krill survey in Area 48, 2019 conducted by the Chinese krill fishing vessel Fu Rong Hai
Abstract: As a contribution to the joint effort on the large-scale synoptic krill survey of Area ... 48, the Chinese krill fishing vessel Fu Rong Hai conducted the survey in the Subarea 48.1 from 2 ... generally following the procedures applied in the CCAMLR 2000 survey analyses, and estimates of krill ... density were based on the 120 kHz data attributed to krill using the swarm-based method as well as the two ...
Meeting Document : WG-EMM-2019/43 : Autor(es): X. Wang, X. Zhao, B. Zou, G. Fan, X. Yu, J. Zhu, J. Zhang and Y. Ying
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Exploitation of the marine environment by two sypatric albatrosses in the Pacific Southern Ocean
mass of prey taken. No satellite-tracked birds fed over the shelf, but data from the duration of ... Abstract: The marine habitat exploited by black-browed Diomedea melanophyrs and grey-headed ... . Data were analysed in relation to the bathymetry and sea-surface temperature of the foraging zones ... . Black-browed albatrosses spent 55% of their time on the Campbell Plateau but also carried out long ...
Meeting Document : WG-FSA-04/59 : Autor(es): S.M. Waugh (New Zealand), H. Weimerskirch, Y. Cherel (France), U. Shankar (New Zealand), P.A. Prince (United Kingdom) and P.M. Sagar (New Zealand)
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The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17
region are precautionary and we recommend extending the current research plan for 2018 season. No ... Abstract: Fishing in the Amundsen Sea region (SSRUs 882C–H) has been managed through a research ... plan since the 2015 fishing season. The aim of the research plan is to collect sufficient information ... to carry out a reliable stock assessment of the toothfish stock in that area. In this report, we ...
Meeting Document : WG-FSA-17/39 : Autor(es): S. Parker and S. Mormede
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Features of spatial and temporally distribution patterns of krill flux in the Scotia Sea: some comments on the development of a krill fishery management in Area 48.
Abstract: The spatial variability of krill flux in the Scotia Sea calculated by using the ... geostrophic method, is analysed. For this, CCAMLR-2000 international survey data was used. The analysis was ... carried out in the 0-500 m depth ranges 50 m layers. Water mass geostrophic circulation, spatial ... to the Scotia Sea, were a subject of study. It is clearly illustrated that the geostrophic krill ...
Meeting Document : WG-EMM-18/21 : Autor(es): S. Kasatkina, V. Shnar and A. Malyshko