Resultados de la búsqueda
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INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS
operational factors on depredation. When killer whales were absent at the beginning of the line hauling ... longline fishery is exposed to high levels of depredation by killer and sperm whales. In this context, this ... study (i) provides estimations of annual depredation levels on a 5-years period (2003-2008), (ii ... observed on respectively 32.6%, 18.6% and 23.4% of the 4289 lines hauled out over this period. Over this 5 ...
Meeting Document : WG-IMAF-09/12 : Autor(es): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)
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Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food web
phytoplankton blooms, which at times can cover an area of more than 0.5 million km2, probably result from the ... Abstract: The Scotia Sea ecosystem is a major component of the circumpolar Southern Ocean system ... Current (ACC) and waters from the Weddell–Scotia Confluence dominate the physics of the Scotia Sea ... mixing of micronutrients into surface waters through the flow of the ACC over the Scotia Arc. This ...
Meeting Document : WG-EMM-07/P8 : Autor(es): E.J. Murphy, J.L. Watkins, P.N. Trathan, K. Reid, M.P. Meredith, S.E. Thorpe, N.M. Johnston, A. Clarke, G.A. Tarling, M.A. Collins, J. Forcada, R.S. Shreeve, A. Atkinson, R. Korb, M.J. Whitehouse, P. Ward, P.G. Rodhouse, P. Enderlein, A.G. Hirst, A.R. Martin, S.L. Hill, I.J. Staniland, D.W. Pond, D.R. Briggs, N.J. Cunningham and A.H. Fleming (United Kingdom)
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
Abstract: This paper is a revised version of WG-EMM-15/28, which uses a question and answer ... format to explain the management of the Antarctic krill (Euphausia superba) fishery in the subareas 48.1 ... to 48.4, and current knowledge about the state of the regional krill stock. The revisions provide a ... new, precautionary assessment of exploitation rate in this fishery. The effective regional catch limit ...
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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Revised reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in 2010/11 and proposal of the consecutive survey in 2011/12
quarter – a half underestimated compared to those using GYM at WG-FSA in 2010 in case of Ob-Lena Bank, and ... of toothfish in the southeast sector (24 allocated hauls) of Division 58.4.3b (BANZARE Bank), using a ... made for 5 hauls. Total catch (excluding fish released alive) of Dissostichus spp. and other bycatch ... species was 12.0 ton in the SE sector, where the catch limit of 15 ton was set. Mean CPUE of Dissostichus ...
Meeting Document : WG-FSA-11/13 Rev. 1 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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Results of the sixth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, January 2017
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... this paper we provide results of the sixth annual survey in the time series. The objectives of this ... survey included monitoring sub-adult (≤ 110 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the ... larger (large sub-adult and adult) toothfish in two areas (both situated in SSRU 881.M) of importance to ...
Meeting Document : WG-SAM-17/01 : Autor(es): K. Large, L. Robinson and S. Parker
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The winter distribution of Adélie and chinstrap penguins from two breeding colonies in the South Shetland Islands of Antarctica
Abstract: Satellite telemetry was used to determine the winter movements and distributions of ... in late February at their breeding site on Cape Shirreff, Livingston Island (62° 28’ S, 60° 46’ W ... ). All five chinstrap penguins were tracked for a minimum of three months each, while one bird was ... that 4 of the 5 chinstrap penguins foraged largely on the shelf to the north and northeast of the South ...
Meeting Document : WG-EMM-02/55 : Autor(es): S.G. Trivelpiece and W.Z. Trivelpiece (USA)
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On the state of Champsocephalus gunnari stock in Subarea 48.3 and methods of its assessment
icefish concentrations reaches 40-50 m;- at scientific trawlings the use of trawls with mesh less than 80 ... 2000 showed clearly a necessity to revise the methods of icefish (which is near-bottom and pelagic fish ... species) biomass assessment based on the results of bottom trawl surveys. A question on unreliability of ... stock assessment was repeatedly raised on the meetings of Working Group on Fish Stock Assessment (WGFSA ...
Meeting Document : WG-FSA-00/45 : Autor(es): K. Shust, V. Senioukov, P. Gasiukov and A. Kozlov (Russia)
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On the very high likelihood of bycatch of ice krill (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba)
Abstract: During open discussions at the Third International Symposium on Krill (St Andrews ... , Scotland, June 2017) attended by representatives of the Association of Responsible Krill harvesting ... companies (ARK), the Marine Stewardship Council (MSC) and CCAMLR, it became apparent that no bycatch of Ice ... a condition of their fishing permits to report all bycatch. Since the present-day Antarctic krill ...
Meeting Document : WG-EMM-18/05 : Autor(es): A.S. Brierley and R. Proud
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Directions followed by the French fishing companies involved in the toothfish fishery of the French EEZ, in order to minimise the incidental mortality of birds
during the CCAMLR XXII, XXIII and XXIV. At the end of the Nineties, the French companies involved in the ... toothfish fishery of the French EEZ gave up trawling for fishing with longlines in order to protect ... juveniles of toothfish and to minimize by-catches of other fish. Longlining was a completely new technique ... for the French companies, and it has taken its full dimension in French EEZ only since the end of 2002 ...
Meeting Document : SC-CAMLR-XXV/BG/23 : Autor(es): Delegation of France
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Estimation of the incidental capture of seabird species in commercial fisheries in New Zealand waters, 2000/01
Abstract: Ministry of Fisheries observers reported 1236 seabird captures from fishing operations ... novaezelandiae) trawl fisheries accounted for 94% of the 701 seabird captures in observed trawl fisheries ... . Observed incident rates in longline fisheries were highest in the ling longline fishery: 24% of observed ... ling autoline sets caught seabirds, compared with 6% of observed chartered tuna longline sets caught ...
Meeting Document : WG-FSA-04/55 : Autor(es): S.J. Baird (New Zealand)