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Foraging energetics of Antarctic fur seals in relation to changes in prey availability
seal foraging trips were twice as long in 1984 as in 1985 and total mass-specific energy expended by ... can increase their foraging effort by increasing the proportion of time spent foraging. This would ...
Meeting Document : SC-CAMLR-VIII/BG/13 : Автор(ы): Delegation of United Kingdom
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A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
of data collected on toothfish and the associated bycatch by all vessels participating in the fishery ... of the fishery by having fewer catch limits. This appeared to be moderately successful, with only one ...
Meeting Document : WG-FSA-08/22 : Автор(ы): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
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Variations in the diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia (Antarctic)
replace d by the ubiquitous Themisto gaudichaudii. The occurrence of krill in the diet in 1991 was one of ... was much less influenced by prey size selectivity due to differences in length composition of fish ...
Meeting Document : WG-FSA-93/24 : Автор(ы): K.-H. Kock and S. Wilhelms (Germany), I. Everson (United Kingdom) and J. Gröger (Germany)
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Annual variation in breeding biology of gentoo penguins, (Pygoscelis papua) at Bird Island, South Georgia
breeding population at Bird Island decreased by 20% and increased by 84% in successive years during the ...
Meeting Document : WG-CEMP-90/38 : Автор(ы): T.D. Williams (United Kingdom)
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Developing a Ross Sea region medium-term data collection plan
collection could be undertaken by vessels and which data collection should be undertaken by observers. Author ...
Meeting Document : WG-FSA-10/32 : Автор(ы): S. Mormede and S. Hanchet (New Zealand)
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
releases and recaptures of tagged fish were available. Catch and releases by age class for this fishery ... these were used to obtain recapture numbers by age class. Two alternative estimation models were ...
Meeting Document : WG-FSA-10/41 : Автор(ы): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (Australia)
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Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)
. Primarily, it is proposed to revise the use of historical survey data by reassigning them to the strata ... mixture analysis is informed by accurate estimates of length at age, an independent estimate of relative ... estimates were found to be most sensitive to the estimated recruitment series interacting with the estimate ...
Meeting Document : WG-FSA-SAM-06/15 : Автор(ы): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
. Habitats revealed by collapsed ice shelves offer unique scientific opportunities. Given the complexity of ... ice shelves as MPAs for scientific study would fulfil one of the recommendations made by the Antarctic ...
Meeting Document : WG-EMM-12/34 : Автор(ы): P.N Trathan, S.M. Grant (United Kingdom), V. Siegel and K.-H. Kock (Germany)
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A proposal for compiling information, assessments and science that underpin established CCAMLR Marine Protected Areas and provide the basis for ongoing management, science and review: an MPA Report
measure for a CCAMLR Marine Protected Area and indicates a number of elements where advice may be given by ... , to serve this purpose in the same way that Fishery Reports have been developed by the Scientific ...
Meeting Document : WG-EMM-12/49 : Автор(ы): A. Constable, M. Guest, D. Welsford (Australia), P. Koubbi (France) and L. Weragoda (Australia)
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Assessment models for Patagonian toothfish in research block 5843a_1 of Division 58.4.3a, Elan Bank
comprised of two fisheries split by depths of 1 200 m as the model in WG-SAM-14/17. Number of longlines was ... for the biomasses (490 and 810 tonnes) were slightly higher than those by MPD for each model. MCMC ...
Meeting Document : WG-FSA-14/22 : Автор(ы): K. Taki (Japan)
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