Resultados de la búsqueda
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Development of an underwater setting method for surface longliners, to minimise the accidental capture of seabirds
Abstract: In response to the Department of Conservation039;s concerns for the accidental ... concept being a towed paravane with an endless cable employed to transport and release the bait at the ... this device proved successful with a 100 percent bait release rate achieved. Author(s): Bentley, N ...
Meeting Document : WG-FSA-97/54 : Autor(es): Bentley, N., Smith, M.
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Update for CCAMLR WG-EMM on the BAS, BirdLife, SCAR penguin tracking database development and analysis project
Global Procellariiform Tracking Database) will allow spatial analyses to be undertaken that will help ... Plus Fund) to build an integrated database that would facilitate the analysis of penguin tracking data ... . The database will have a web-based user interface that will allow data holders to submit data and ... attach a range of access levels; access may be granted only to the data holder, to a wider group, or to a ...
Meeting Document : WG-EMM-14/03 : Autor(es): P. Trathan, B. Lascelles (United Kingdom) and M. Hindell (Australia)
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Some considerations on the usefulness of CPUE data from Japanese krill fishery in the Antarctic
on the information recorded on log book. While searching behaviour seems to be the basis of this ... fishery, CPUE in terms of catch per minute of towing was thought to be an useful index of patch density ... and possibly of local abundance. Author(s): Y. Shimadzu and T. Ichii (Japan) Title: Some ...
Meeting Document : WS-KCPUE-85/04 : Autor(es): Y. Shimadzu and T. Ichii (Japan)
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Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1998–1999
birds per 1000 hooks, compared with 0.289 in 1996-97 and 0.117 in 1997-98. Comparisons between years for ... primarily linked to daytime sets, with most birds caught in the late afternoon or shortly after dusk. Use of ... conjunction with an underwater setting device) coupled with increasing experience by both crews and observers ... undoubtedly contributed to the low bycatch rate. Other factors that might account for the small numbers of ...
Meeting Document : WG-FSA-99/42 Rev. 1 : Autor(es): P.G. Ryan and B.P. Watkins (South Africa)
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Do the males of Dissostichus eleginoides grow faster, or only mature before females?
Helena and Cisne Verde during August of 1997-and utilized by the WG-FSA-97 to build the maturity ogives ... sex in samples coming from South Georgia Islands. The results show that the differences are due to ... concluded that the males mature for the first time at 4 years age and females at 10 years age, reaching 100 ...
Meeting Document : WG-FSA-98/16 Rev. 1 : Autor(es): C.A. Moreno (Chile)
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A SIMULATION STUDY TO DETERMINE THE RELATIONSHIP BETWEEN SAMPLING INTENSITY AND PRECISION WHEN ESTIMATING AVAILABILITY FUNCTIONS FOR BREEDING ADÉLIE PENGUIN COLONIES
measurements that allow high resolution temporal availability functions to be estimated, which in turn can be ... consuming and expensive to process, and it is of interest to determine if such data could be subsampled with ... obtained from higher frequency sampling, with a trade-off observed between sampling frequency and precision ... and cannot be recommended. Author(s): J. McKinlay and C. Southwell (Australia) Title: A SIMULATION ...
Meeting Document : WG-EMM-11/12 : Autor(es): J. McKinlay and C. Southwell (Australia)
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Line weights of constant mass (and sink rates) for Spanish-rig Patagonian toothfish longline vessels
depth, which would be equal to or exceeded by lines with 5 kg steel weights. Sink rates of Chilean ... kg weights at 40 m intervals on longlines to minimise interactions with seabirds. The weights are ... weights become progressively lighter, requiring ongoing weighing and repair. This problem can be solved by ... equipped with bags of rocks (4 kg, 6 kg and 8 kg) and lines with steel weights of equivalent masses. The ...
Meeting Document : WG-FSA-07/15 : Autor(es): G. Robertson (Australia), C.A. Moreno, E. Gutiérrez (Chile), S.G. Candy (Australia), E.F. Melvin (USA) and J.P. Seco Pon (Argentina)
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Australian research on Antarctic bird and seal diets
Bay, on which is centered the CCAMLR Ecosystem Monitoring Programme039;s priority study area ... limited, although continuing studies will be useful to assess the natural varibility of the system. Around ...
Meeting Document : SC-CAMLR-VII/BG/32 : Autor(es): Delegation of Australia
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Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)
(>2500 ind./t of krill) occurred in hauls with the low krill catch rates (Author(s): T. Iwami, S ... hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ...
Meeting Document : WG-EMM-00/54 : Autor(es): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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Monitoring and management in the Antarctic – making the link between science and policy
a specific management objective, and does not produce quantitative metrics that can be assessed and ... . Human impacts arise as a result of processes that originate in the region (endogenous) and those that ... terrestrial and marine systems to measure impacts that arise as a result of endogenous process such as fishing ... other parts of the world these are generally insufficiently precautionary to be applied in the Antarctic ...
Meeting Document : WG-EMM-07/P9 : Autor(es): K. Reid (United Kingdom)