Résultats de la recherche
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PRELIMINARY ESTIMATION OF PENGUIN BREEDING ABUNDANCE AT SPATIAL-SCALES OF RELEVANCE TO CCAMLR: INCORPORATING UNCERTAINTY IN COUNT DATA
workshop, and the underlying basis of new estimation procedures presented to the workshop. At an SSMU level ... , uncertainty associated with accuracy or repeatability of the counts varied substantially between SSMUs (95 ...
Meeting Document : WG-EMM-08/53 : Auteur(s): H. Lynch, R. Naveen (USA), J. McKinlay, C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, S. Trivelpiece (USA) and D. Ramm (CCAMLR Secretariat)
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Practical options for developing feedback management for the krill fishery in Subarea 48.2
recent research initiatives will help provide new information; however, a fundamental step-change in ... regular acoustic surveys by krill fishing vessels, coupled with ‘health checks’ that describe the status ...
Meeting Document : WG-EMM-14/04 : Auteur(s): P. Trathan (United Kingdom), M. Santos (Argentina) and O.R. Godø (Norway)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
-fold over the 2-month period with highest concentrations north of Elephant Island and apparent ... associated with an apparent inflow of water from southeast of the study area; this size mode was not evident ... area, with a frontal system existing to the northwest of Elephant Island. 2) Although there was high ... effort was not closely correlated with krill abundance; the reason for this may be a problem of the ...
Meeting Document : WG-CEMP-90/11 : Auteur(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity
acoustically measured over a broadbandwidth (36 to 202 kHz) using a new technique [J. De Rosny and P. Roux ... , Antarctica, and aboard R/V Yuzhmorgeologiya. Chirp pulses were sequentially transmitted with an ... -tank and the modulated reverberations were sensed bi-statically with three omnidirectional receivers ...
Meeting Document : WG-EMM-02/49 : Auteur(s): D.A. Demer and S. G. Conti (USA)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
Abstract: Minimising seabird interactions with longline operations is a key objective of the ... , CCAMLR XXXIV (para. 5.68) endorsed new pre-season (1-14 April) and post-season (15-30 November) season ... vessel to demonstrate full compliance with Conservation Measure 25-02 in the previous season be removed ...
Meeting Document : WG-FSA-2019/31 : Auteur(s): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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Diet overlap among top predators at the South Orkney Islands, Antarctica
analyzed diet information on nine bird and two seal species collected in the austral summer from 1996 to ...
Meeting Document : WG-EMM-18/04 : Auteur(s): M.L. Bertolin and R. Casaux
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e-sc-xi-a4.pdf
... estimation and other procedures used for biomass surveys, and ‘Editorial Considerations’ under Item 7. With ... (66 250 tonnes total). 4 3.5 Dr V. Marín (Chile) reported that one Chilean fishing vessel ... From the above, it was concluded that at least 227 000 tonnes of krill were caught in 1991/92, with 30 ... some nations with Conservation Measure 32/X which calls for reports of monthly krill catches. It was
application/pdf attached to:WG-KRILL-92
Meeting Report : WG-KRILL-92
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Fishing and conservation in southern waters
with the 1970's and 1980's, when most fisheries were subsidized, economic considerations and ... already been over-exploited before the Convention on the Conservation of Antarctic Marine Living Resources ... components of the marine ecosystems from fishing. CCAMLR adopted a system of inspection in 1989/90 and a ...
Meeting Document : SC-CAMLR-XII/BG/11 : Auteur(s): Delegation of Germany
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Line weights of constant mass (and sink rates) for Spanish system Patagonian toothfish longline vessels
with seabirds. The weights typically used are collections of rocks enclosed in netting bags. During ... relationship between the sink rates of longlines equipped with bags of rocks (4, 6 and 8 kg) and those with ... steel weights of equivalent masses. The purpose of the experiment was to provide vessel operators with ... the option of substituting steel weights for rock weights while remaining in compliance with the sink ... 40 m intervals on longlines to minimise interactions with seabirds. The weights typically used are ... with bags of rocks (4, 6 and 8 kg) and those with steel weights of equivalent masses. The purpose of ... the experiment was to provide vessel operators with the option of substituting steel weights for rock ... weights while remaining in compliance with the sink rates associated with the line-weighting provisions ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 93–106 : Auteur(s): Robertson, G., C.A. Moreno, E. Gutiérrez, S.G. Candy, E.F. Melvin and J.P. Seco Pon
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A feedback approach to Ecosystem Based Management: model predictive control of the Antarctic krill fishery
is a promising approach for addressing spatially-resolved multiple-objective problems with high ... Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) aims ...
Meeting Document : WG-EMM-12/19 : Auteur(s): S. Hill and M. Cannon (United Kingdom)