Résultats de la recherche
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The diet of toothfish species Dissostichus eleginoides Smitt and D. mawsoni Norman with overlapping distributions around the South Sandwich Islands, Southern Ocean
overlapping populations of the two species. Despite large differences in the proportion of stomachs containing ... compete for prey in regions where both are distributed. However, the large increase in rate of prey ... (schoener overlap index of 74.4 % based on prey mass) with finfish (particularly macrourids and ...
Meeting Document : WG-FSA-11/P03 : Auteur(s): J. Roberts, J. Xavier and D. J. Agnew
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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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Science
attention on scientific study as an essential basis for protection and rational use of Antarctic marine ... marine ecosystem as a basis for the future management of potential living resources ’. The scientific ... outcomes of the BIOMASS program laid the foundation for the primary role of science in the CAMLR Convention ... and its use by the Commission in achieving its objectives. The main route for scientific advice in ...
Page : Site Section: Science
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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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Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
was 39k tonnes for a total of 299k tonnes in the combined areas. The estimated 200 kHz survey data ... bongo-net hauls (reduced speed from 6-8 knots to 3 knots for 45 min) spaced approximately every 30 n ... estimated from the 120 kHz data based on ratios established last year. The 200 kHz data will be presented ... kHz was also used. The 50 kHz envelope detected signal was recorded in FM mode on an instrument ... . One-min estimates then were recorded on magnetic disk files for further analyses. Estimates of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Auteur(s): Macaulay, M.C.