Résultats de la recherche
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The integrated krill assessment model for Subarea 48.1 with future catches meeting alternative decision rules
Abstract: Model results and diagnostics for the integrated assessment model for krill in Subarea ... described. The model and procedures outlined in this paper synthesize work reported to CCAMLR WG-EMM, WG-SAM ... , and WG-FSA in a number of papers since 2011. The assessment model for krill in Subarea 48.1 is offered ... as a tool for CCAMLR to use in managing the krill fishery in Subarea 48.1. Author(s): D. Kinzey, G.M ...
Meeting Document : WG-SAM-16/36 Rev. 1 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss
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Seabird warp-strike research design
Abstract: The paper documents a protocol for assessing warp strike occurrence for seabirds in ... trawl fisheries, and sets out the sampling plan, forms and protocols used to sample warp strikes in the ... southern squid fishery in 2005 in New Zealand. Results of this sampling are set out in Abraham (unpublished ...
Meeting Document : WG-FSA-05/41 : Auteur(s): A. Kennedy (New Zealand)
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...
Meeting Document : WS-KCPUE-89/04 : Auteur(s): D.S. Butterworth (South Africa)
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A simulation study of krill fishing by an individual JAPANESE trawler
commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ... than in the model. Two ad hoc model modifications are introduced to eliminate this inconsistency ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ... sector modelled are considered, and their performance in response to a variety of ways in which the ...
Meeting Document : SC-CAMLR-VII/BG/37 : Auteur(s): D.S. Butterworth (Invited Expert)
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KRILL FISHERY REPORT: 2011 UPDATE
and Poland have fished for krill in Area 48. The total catch reported to May 2011 was 110949 t, most ... for the season falls in the range 153000-214000 t. In 2009/10, 10 vessels fished for krill in Area 48 ... predominantly in Subarea 48.2, notably 48444 t from SOW (South Orkney West). The catches of krill reported from ... SSMUs APBSE, APBSW and APW in 2009/10 were the highest catches reported from those SSMUs in the history ...
Meeting Document : WG-EMM-11/05 : Auteur(s): Secretariat
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DISCRIMINATION OF ENVIRONMENTAL VARIABLES THAT INFLUENCE THE CATCH PER UNIT EFFORT: THE CASE OF THE ANTARCTIC KRILL FISHERY
standardization process consisting of isolating all those exogenous factors from temporal variations in abundance ... from the CPUE time-series. These exogenous factors include those generated by modifications in fishery ... vessel efficiency, variations in fishing strategies, and environmental fluctuations. The selection of the ... the environmental effects vary on different temporal scales in autocorrelated and non-random manners ...
Meeting Document : WG-EMM-11/P3 : Auteur(s): J.C. Quiroz, R. Wiff, M.A. Barrientos and F. Contreras
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Note sur l'étude d'évaluation de l'impact des pêcheries sur les populations de pétrels à menton blanc Procellaria aequinoctialis et de pétrels gris Procellaria cinerea aux îles Crozet et Kerguelen
between 1983 and 2004, with the main cause being changes in environmental variables. Nevertheless, the ... decrease in the population was more marked as a result of previous levels of incidental mortality. At ... present, the level of mortality of white-chinned petrels in Subarea 58.6 has not reached the critical ... mortality of white-chinned petrels in Division 58.5.1 have probably had a negative effect on the population ...
Meeting Document : SC-CAMLR-XXVI/BG/22 : Auteur(s): Délégation française
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Beach debris survey Signy Island, South Orkney Islands, 2002/03
1994/95 (an increase of 38% and 7% since 2001/02 respectively). There was an increase in the number of ... continued the change in trend that began last season in what had otherwise been a declining trend since 1993 ... /94. Such a continued increase in the number of these packaging bands found indicates that the ban on ... their use aboard fishing vessels brought into force by CCAMLR in 1995/96 has yet to prove entirely ...
Meeting Document : SC-CAMLR-XXII/BG/12 : Auteur(s): Delegation of the United Kingdom
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Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models
Abstract: An important management objective for CCAMLR in the high seas region of the Antarctic ... , and interpret. In general, the results of the simulations suggested that management action of areal ... closures in the Ross Sea region are likely to result in an improved outcome over scenarios where there was ... changes in the distribution of future fishing may result in alternative impacts or how different ...
Meeting Document : WG-SAM-10/19 : Auteur(s): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
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Le prix du poisson : Étude de marché mondiale de la légine australe (Dissostichus eleginoides) et antarctique (Dissostichus mawsoni)
), there are currently no methods in place to monitor the volume or value of toothfish traded in the ... global patterns of trade volume and price. The analysis focused on the ten countries most active in the ... trade of toothfish over the six-year analysis period. The average price ($/kg) of imports increased by ... 44% from 2007 to 2012 with an overall decrease in traded volume. The USA accounted for 54% of total ...
Meeting Document : CCAMLR-XXXIII/BG/14 Rev. 2 : Auteur(s): Secretariat