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Potential modelling structures for a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region
estimation of biomass in SSRUs 88.2C–G. Additional data resulting from a two-year research plan implemented ... once additional age and tag data have been collected in SSRUs 88.2C–H as part of the two-year research ... Abstract: Two-area population models for Antarctic toothfish in the Amundsen Sea Region were ... developed further as current single area models did not fully explain the patterns in the observed data on ...
Meeting Document : WG-SAM-15/49 : Автор(ы): S. Mormede, S.J. Parker, A. Dunn and S.M. Hanchet (New Zealand)
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Spatio-temporal dynamics of the Antarctic krill fishery in Subarea 48.1 based on data collected on board F/V Fu Rong Hai
played an important role in the feed-back management of krill fishery. The CPUE data collected from the ... spatial dynamics of the population and the fishery of krill in CCAMLR Subarea 48.1. The acoustic data ... . In most fishing seasons, krill abundances were found higher in autumn than that of in summer. In ... autumn, the fishing activity usually concentrated in the middle of the Bransfield strait Acoustic data ...
Meeting Document : WG-EMM-18/41 : Автор(ы): Y. Ying, X. Wang, X. Zhao, J. Zhu, G. Fan and X. Yu
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Update on the conservation status, distribution and priorities for albatrosses and petrels in the CCAMLR area
distribution in the CCAMLR area are still uncertain or showed declines during the last two decades, and two ... incidental mortality in longline and trawl fisheries. CCAMLR has achieved outstanding success in reducing ... seabird bycatch in the area under its jurisdiction to negligible levels. However, the species distributed ... in the Convention Area are highly migratory and largely extend their distribution in neighbouring ...
Meeting Document : SC-CAMLR-XXXVII/BG/10 : Автор(ы): Submitted by the ACAP Secretariat
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INDICATIVE ESTIMATES OF BIOMASS AND YIELD OF WHITSON’S GRENADIER (M. WHITSONI) ON THE CONTINENTAL SLOPE OF THE ROSS SEA IN SUBAREAS 88.1 AND 88.2
Abstract: Catch limits currently in place for macrourids in Subareas 88.1 and 88.2 are defined as ... being equal to 16% of the catch limit of Dissostichusspp. in these subareas. The 16% was based on the ... ratio of the by-catch limit for macrourids to the catch limit for Dissostichus spp. in Division 58.5.2 ... in 2002/03 (CCAMLR-XXI, para 11.53). The bycatch limit for macrourids in Division 58.5.2 had in turn ...
Meeting Document : WG-FSA-08/32 : Автор(ы): S.M. Hanchet, D. Fu and A. Dunn (New Zealand)
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Milk fatty acid signatures indicate both major and minor shifts in foraging ecology of lactating Antarctic fur seals
year (austral summer 1990/1991). In lactating otariid females, milk fatty acids secreted during the ... least in a poor food year, fur seals do not feed exclusively on krill throughout lactation but rather ... fatty acids in the marine food chain and it may be useful in determining the composition of seal diets ... or in detecting changes in diets. We apply fatty acid signature analysis to milks collected from ...
Meeting Document : WG-EMM-97/14 : Автор(ы): Boyd, I.L., Iverson, S.J., Arnould, J.P.Y.
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Biomass of Antarctic krill around South Shetland using 2-dB difference method in April 2016
Abstract: Antarctic Krill plays an important role in Antarctic ecosystems as the medium that ... connects phytoplankton to penguins, seals, and whales. It is also in the limelight as an important protein ... it is surrounded by Darke Passage in North, Weddle Sea in East, and Bransfield Strait in South ... regulation that limits Krill catch amount using fishing survey and acoustic assessment data in order to ...
Meeting Document : WG-EMM-16/60 : Автор(ы): Delegation of the Republic of Korea
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Selectivity-induced bias in growth parameter estimates
Abstract: A short simulation study has been carried out to investigate the size of the bias in ... being included in catch samples. Fish were included in catch samples from the population with ... selectivity function used in the simulations closely matched those used for current toothfish assessments in ... producing considerably lower estimates of L? and higher estimates of K than in the true population. The ...
Meeting Document : WG-FSA-SAM-05/19 : Автор(ы): G.P. Kirkwood (United Kingdom)
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Energetics of diving in macaroni penguins
Abstract: Heart rate (fH), abdominal temperature (Tab) and diving depth were measured in thirteen ... adjustments that might facilitate the diving behaviour observed in this species. In common with other diving ... birds, macaroni penguins showed significant changes in fH associated with diving, and these variables ... accounted for 36% of the variation in dive duration. When VO2 was calculated for dives of different ...
Meeting Document : WG-EMM-03/39 : Автор(ы): J.A. Green, P.J. Butler, A.J. Woakes and I.L. Boyd (United Kingdom)
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Information on incidental mortality of seabirds and other protected species in the US West Coast pelagic longline fishery
Abstract: Although the IATTC does not have an established observer program in its longline ... subject to pertinent US regulations as well as under the purview of IATTC. In response to a CCAMLR query ... in 2002, IATTC informed CCAMLR of this US observer program. Information about seabird bycatch ... observed in the US West Coast pelagic longline fishery was reported by the US in WG-FSA-02/39. Per a ...
Meeting Document : WG-FSA-03/39 : Автор(ы): D. Petersen, L. Enriquez and S. Fougner (USA)
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PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4
Abstract: 1. A three-year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... 48.4; 2. In 2008/09 a total of 214 D. eleginoides and 192 D. mawsoni were tagged and released. Two ... tagged D. mawsoni were recaptured in the first season. 3. Macrourids and rajids dominated finfish bycatch ...
Meeting Document : WG-FSA-09/18 : Автор(ы): J. Roberts and D.J. Agnew (United Kingdom)
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