Résultats de la recherche
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The relevance to CCAMLR of the UN Agreement relating to the Conservation and Management of Straddling Fish Stocks and Highly Migratory Fish Stocks
highlighted. The paper also contains an outline of future actions for the consideration of States which are ... Abstract: This paper discusses the relevance to CCAMLR of the Agreement for the Implementation of ... responsibility for releasing documents: CCAMLR Secretariat ... the Provisions of the United Nations Convention on the Law of the Sea of 10 December 1982 Relating to ...
Meeting Document : CCAMLR-XV/12 Rev. 1 : Auteur(s): Delegation of Australia
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Marine debris surveys at Bird Island, South Georgia 1990 to 1995
Georgia in a parallel study. An increasing use of environmentally-aware scientific observers on all ... programme developed by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) to ... reduce entanglement of marine mammals and birds. Overall, and in all but one year, the highest incidence ... longline fishery for Patagonian toothfish Dissostichus eleginoides around South Georgia. Packaging bands (6 ...
Meeting Document : CCAMLR-XV/BG/05 : Auteur(s): Delegation of the United Kingdom
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Poor breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
nests compared to previous "good" seasons in which between 1200 and 1800 chicks crèched on the ... adult birds spending longer at sea foraging than in normal years. In most previous seasons birds have ... "good" years. Meal masses brought back to the chicks appeared normal, but feeding frequencies ...
Meeting Document : WG-EMM-99/25 : Auteur(s): L. Irvine, J.R. Clarke and K.R. Kerry (Australia)
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Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... -specific tag detection performance for the Ross Sea fishery using a case-control methodology which controls ... for the inter-annual spatial and temporal variability of commercial fishing operations from which tags ... subset of vessels for which there is confidence in their tag-recapture data. Finally, we apply these ...
Meeting Document : WG-SAM-13/34 : Auteur(s): S. Mormede (New Zealand)
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THE RISK TO FISHERY PERFORMANCE ASSOCIATED WITH SPATIALLY RESOLVED MANAGEMENT OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) HARVESTING
densities for efficient exploitation. Finally, the distribution of both catch and fishing effort over an ... Abstract: The ecosystem approach to fisheries attempts to define objectives for the target ... species, the wider ecosystem and, critically, the fishery itself. Proposals for implementing this approach ... encountering exploitable densities of Antarctic krill, Euphausia superba, at the 1 nm scale during an acoustic ...
Meeting Document : WG-EMM-09/P10 : Auteur(s): S. Hill, P. Trathan and D. Agnew
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Important Bird Areas (IBAs) in Antarctica
submitted a Working Paper (WP) and an Information Paper (IP) on Important Bird Areas to the Committee for ... recently completed analysis on IBAs based on the consistent application of global criteria for bird ... (IBAs) in Antarctica and IP 27 Important Bird Areas (IBAs) in Antarctica). These papers reported on the ... United States, on behalf of the original sponsors of the papers, presents this short paper to inform WG ...
Meeting Document : WG-EMM-15/32 : Auteur(s): P.A. Penhale (USA)
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Modeling the growth dynamics of Antarctic krill
losses due to feeding and digestion, and an activity-based respiration factor. Positive net production ... of model coefficients were constructed from an analysis of field and laboratory measurements provided ... in the current literature. The model was forced with an environmental time series of food (pelagic ... . Simulated growth rates during the spring and summer for all size classes were consistent with published ...
Meeting Document : WG-EMM-96/68 : Auteur(s): Lascara, C.M., Hofmann, E.E.
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Depletion experiment of Dissostichus eleginoides stock in the south of South Georgia Island (Antarctica)
Abstract: Ten hauling for Dissostichus eleginoides were performed from the 11lth to the 21 of ... projected to 3244.8 nm2, obtaining an estimated biomass of 937.8 ton. Due to statistical limitations of ... given by the vessel were confirmed with information obtained from an automatic position system (ARGOS ... these data, another analisis based in the density (Kg/nm2) on the fished area was used. The positions ...
Meeting Document : WG-FSA-94/31 : Auteur(s): P. Rubilar, C.A. Moreno (Chile) and J. Ashford (United Kingdom)
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Estimating Antarctic krill density from multi-beam observations using distance sampling methods
multi-beam sonars. Here I highlight a recently published analysis technique- an adaptation of distance ... sampling theory- that provides a general means for estimating krill density and biomass from vertically ... oriented multi-beam echo-sounder data. I describe an extension to this approach that may, subject to the ... Abstract: The Scientific Committee has requested SG-ASAM to provide advice on the collection and ...
Meeting Document : SG-ASAM-12/05 : Auteur(s): M.J. Cox (Australia)
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
that the modes represented year classes and that one translucent zone is formed annually in otoliths of ... the otoliths of D. mawsoni appears to be a valid method for determining the age of this species ... , sagittal otoliths were examined from D. mawsoni that had been injected with oxytetracycline some years ... juvenile D. mawsoni. Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37 ...
Meeting Document : WG-FSA-02/33 : Auteur(s): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)