Resultados de la búsqueda
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Correlation between krill and Champsocephalus gunnari stocks in the South Georgia Area 48.3
Abstract: After almost a ten-year gap in fishing for Champsocephalus gunnari in the area of South ... Georgia and Shag Rocks, the Russian large-sized trawler ZAKHAR SOROKIN (the MOONZUND-type) attempted a ... C. gunnari. Search for the fish stocks covered all the traditional sites; this allowed observers to ... determine a clear correlation between concentrations of adult fish and krill on the north-western shelf of ...
Meeting Document : WG-EMM-99/27 : Autor(es): K.V. Shust, V.L. Senioukov, P.N. Kochkin andN.A. Petrukhina (Russia)
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
CM 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... undertaken to further develop a risk assessment approach to spatially subdivide the trigger level for krill ... pass these with a commentary on to the Scientific Committee to support its review and advice on CM 51 ... -07 to the Commission. This risk assessment framework aims to minimise the risk to predator ...
Meeting Document : SC-CAMLR-XXXV/BG/37
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Seabird mortality and the Falkland Islands trawling fleet
recorded on the Patagonian Shelf, north of the Islands. Birds were killed after being dragged underwater by ... , trawling and hauling operations for 157 days onboard finfish trawlers in the Falkland Islands in 2002/03 ... the warp cable, while feeding on factory discharge at the stern of the vessel. An unknown proportion ... of these birds become impaled on a splice in the cable, which was situated on average around 50-100m ...
Meeting Document : WG-FSA-03/91 : Autor(es): B.J. Sullivan, T.A. Reid, L. Bugoni and A.D. Black (United Kingdom)
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THE AUSTRALIAN SKATE TAGGING PROGRAM AT HEARD ISLAND AND MCDONALD ISLANDS, CCAMLR DIVISION 58.5.2
Abstract: Tagging of the three species of skates taken as by-catch in the Heard Island and ... McDonald Islands toothfish fishery, Bathyraja eatonii, B. irrasa and B. murrayi has taken place over the ... last eight years with nearly 6,000 skates tagged. The recapture rate has been low, less than one ... percent. Movement after tagging shows that these fish are recaptured only short distances from where they ...
Meeting Document : WG-FSA-08/55 : Autor(es): G.B. Nowara and T. Lamb (Australia)
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Preliminary observation about the possibility of Antarctic krill escapement from a trawl net
Abstract: We observed whether Antarctic krill escaped from the trawl net or not using an ... underwater video camera attached on the trawl net of Japanese commercial trawler Fukuei-maru (4,350.62 GT) in ... 2011. To avoid the influence of camera lighting on krill behavior, the observation was conducted during ... daytime. Few krill appeared to escape from posterior part of trawl net. When the trawl net caught dense ...
Meeting Document : WG-EMM-12/66 : Autor(es): K. Fujita and S. Hasegawa (Japan)
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Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas
Paper Title: Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen ... Islands areas Abstract / Description: The benefits of conservation measures are generally based on the ... rebuilding of the depleted stocks and improvement in yields. It is desirable that such measures be based on ... the expected rate of recovery relative to rates of fishing. A simulation model based on a ... more for all F values in from six to eight years, after which it stabilizes at the lower size ... about 4 times the initial yield at the end of the 20-year simulation, doubling in four years for both ... = 0.72 and by 6 for F = 0.36 at the end of the 20 years simulated. 3. Summary of Trends 3.1 South ... equilibrate after a few years. The situation for c. gunnari is obviously different. The stock does not ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Autor(es): Hennemuth, R.C., K.D. Bisack and G. Duhamel
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
otoliths and gonads to clarify migration route and associated life stages of the fish. To this end, we ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ...
Meeting Document : WG-SAM-15/03 : Autor(es): Delegation of Japan
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
. To this end, we propose to follow the current research style in the current research blocks for the ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ...
Meeting Document : WG-SAM-15/04 : Autor(es): Delegation of Japan
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
associated life stages of the fish. To this end, we propose to follow the current research style in the ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ...
Meeting Document : WG-SAM-15/05 : Autor(es): Delegation of Japan
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Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors
Paper Title: Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula ... censuses on the Antarctic Peninsula are often subject to logistical challenges that preclude nest counts ... being conducted at the peak of egg laying. Additionally, the historical literature includes many census ... counts with non-standard timing. The challenge is, therefore, to correct ‘off-peak’ census counts to make ... additional popula- tion estimation procedures such as photodocu- mentation or sample plots.) At the beginning ... the site) occurs one week after this peak. Note that the peak of egg laying and the maximum census ... count can occur either slightly before or slightly after the peak of egg laying. Although it is ... generally assumed that census counts after the peak of egg laying are biased downward from the standard ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Autor(es): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece