Resultados de la búsqueda
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Recommendation for an explicit limit reference point for the mackerel icefish (Champsocephalus gunnari) fishery in CCAMLR Statistical Division 58.5.2
completed. In years with a zero commercial catch limit, a combined bycatch and research catch limit of 30 ... limit recommended by the decision rules is below 100 tonnes in the first year after a survey has been ... Abstract: Large fluctuations in abundance are a persistent feature of the populations of mackerel ... icefish (Champsocephalus gunnari) in the waters adjacent to Heard Island and the McDonald Islands in ...
Meeting Document : WG-FSA-11/34 : Autor(es): Delegation of Australia
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Supplement to the krill synoptic survey design in Area 48 (with participation of a Russian scientific research vessel)
integral part of Area 48 is discussed. It is shown that in this case there shall be obtained for the first ... time for the recent twenty years the material which allows to have an idea of krill simultaneous ... concentration of fishing grounds between the Antarctic Peninsula and the most southern Sandwich Islands up to 20 ... ° W. It is emphasized that in this way there shall be obtained the data that are important both to ...
Meeting Document : WG-EMM-99/43 : Autor(es): V.A. Sushin, S.M. Kasatkina and F.F. Litvinov (Russia)
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The state of exploited fish stocks in the Southern Ocean - a review
Union since more than 20 years. The total yield from the Southern Ocean has been 2.85 million tonnes ... until the season 1989/90. About two thirds of the catches have been taken in the Atlantic Ocean sector ... (mainly South Georgia) while the remaining one third originated primarily from the Kerguelen waters in the ... most heavily affected by fishing are those of Notothenia rossii in both sectors, Notothenia squamifrons ...
Meeting Document : SC-CAMLR-X/BG/13 : Autor(es): Delegation of Germany
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
least 27 years; in M. caml, full size is attained at about 15–20 years of age and they can live in ... excess of 60 years. However, sexual maturity in female M. whitsoni is reached at longer length and older ... Macrourus whitsoni and M. caml in the Ross Sea region of the Southern Ocean. Fish were caught by New Zealand ... vessels in the fishery for Antarctic toothfish (Dissostichus mawsoni) between December 2011 and February ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Autor(es): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region
to be developed to assess the ASR for 2018, as recommended by Scientific Committee in 2016. Author(s ... shown promising results to date, with 8 interseason tags recaptured in the South area in 2016 and 12 ... (preliminary recaptures) in 2017. The aim of this paper is to ascertain when the Amundsen Sea region stock ... in estimates of biomass, the likely biases, and to set expectations for mark-recapture data for the ...
Meeting Document : WG-SAM-17/40 : Autor(es): S. Mormede and S. Parker
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
subarea, derived from the subarea catch limit, appears to exceed this level in up to 20% of years due to ... conservative estimates of the regional biomass in recent years. This suggests that the trigger level would be ... (or “trigger level”), established in 1991, is 0.62 million tonnes year-1, equivalent to ~1% of the ... format to explain the management of the Antarctic krill (Euphausia superba) fishery in the subareas 48.1 ...
Meeting Document : WG-EMM-16/21 : Autor(es): S. Hill, A. Atkinson, C. Darby, S. Fielding, B. Krafft, O.R. Godø, G. Skaret, P. Trathan and J. Watkins
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Distribution of the Soviet fishing fleet and catches (CPUE) in Subdivision 48.3 during 1986–1990
- from August to September (in some years from June to September). The third fishing ground is ... -scale management units determination. In this work the available data of haul by haul catch statistics ... for the Soviet krill fishery in subdivision 48.3 for 1986-1980 (15 thousand hauls) were analyzed ... boundary between them located at 37-37 30’ W have been distinguished. These fishing grounds are formed ...
Meeting Document : WG-EMM-02/63 Rev. 1 : Autor(es): V.A. Sushin, P.C. Gasiukov, A.V. Zimin and S.M. Kasatkina (Russia)
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
. This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in ... . Males accounted for 71% of entanglements, 88% of which were of young (1-4 years old) animals; females ... accounted for 64% of animals older than this. Obvious physical injury was being caused to 30% of animals and ... significant population decline has occurred concurrently. Antarctic fur seals are still increasing in numbers ...
Meeting Document : CCAMLR-VIII/BG/05 : Autor(es): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
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Some characteristics of krill transport in the Scotia Sea based on the Russian survey data
Abstract: In this work the characteristics of krill transport across the SSMUs determined on the ... basis of long-term Russian research in Area 48 are considered. Estimates of mean current velocities ... based on the long-term data from 3012 stations and respective time intervals when the water mass in the ... study area was totally replaced are presented. It is shown that in SSMUs the multiple total replacement ...
Meeting Document : WG-EMM-05/41 : Autor(es): S.M. Kasatkina, V.N. Shnar and O.V. Berezhinsky (Russia)
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Stomach contents of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region in 2010 and a comparison with 2003
two years. It is planned to carry out a more rigorous analysis of these data in the coming year ... . De Witt’s icefish, eel-cods, and glacial squid were also important occurring in about 20% of stomachs ... Abstract: The stomach contents of 273 Dissostichus mawsoni captured by bottom longline in the ... in 640–2127 m depths and ranged between 78 and 181 cm TL. A total of 198 stomachs contained prey ...
Meeting Document : WG-FSA-10/22 : Autor(es): D.W. Stevens, J. Forman and S. Hanchet (New Zealand)