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Developments in the CCAMLR tagging program
% provide an exact match with tag numbers but had inconsistent ancillary data. For those tags that did not ... the level of effort involved in linking a tag recapture to its tagging event. For the 2011 season 673 ... tags have been returned; 37% provide an exact match with tag numbers held in the database, 22 ...
Meeting Document : WG-FSA-11/06 : Автор(ы): Secretariat
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Dynamics of Antarctic penguin populations in relation to inter-annual variability in sea-ice distribution
were there significant relationships between population size and breeding success, except for an ... population size remained stable, whereas that of chinstrap penguins decreased slightly. For neither species ... of eggs hatching. For both species, no general relationship was found between either population size ... breed. For both species, this period occurred before the sea ice reached its maximum extent and was ...
Meeting Document : WG-EMM-96/10 : Автор(ы): Murphy, E.J., Croxall, J.P., Trathan, P.N.
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Analysis of scientific observer data from the Saga Sea 2006–2007
not create an ideal sampling environment for comparing the performance of the two types of trawls ... Sea from June 2006 to June 2007. This paper presents an initial analysis of the krill and fish bycatch ... for a number of weeks or months before changing, for operational reasons to the other type. This did ... catch rates of larval fish on the Saga Sea are similar to those reported for conventional trawls. Author ...
Meeting Document : WG-EMM-07/16 : Автор(ы): P. Orr, J. Hooper, D. Agnew, J. Roe, G. Doherty and A. Pryor
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Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
fishing selectivity cannot be corrected for given the available data. In the absence of an unbiased ... Abstract: For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... used for abundance estimates from trawl surveys in a toothfish stock assessment. The bounds of such as ...
Meeting Document : WG-SAM-15/34 : Автор(ы): W. de la Mare, P. Ziegler and D. Welsford (Australia)
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Strengthening the joint work of the CEP and SC-CAMLR on climate change
outcomes for the workshop, including: agreeing on a scientific baseline; compiling overviews of existing ... a process for information updates and exchange; considering mechanisms for temporary protection of ... areas affected by rapid climate events such as the collapse of an ice shelf; considering possible ... issue is the only way that the ATS will develop an organized, responsive approach to addressing the ...
Meeting Document : SC-CAMLR-XXXIV/BG/29 : Автор(ы): Submitted by ASOC
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Examination of the gut contents of Patagonian toothfish (Dissostichus eleginoides) from the toothfish pot fishery trials around South Georgia
, (Dissostichus eleginoides), represents an important target species for fisheries not only in the study area ... CCAMLR, an understanding of the trophic relationships of exploited species is vital. Toothfish ... most common prey item for fish caught using pots was prawns. This prey category was localised in ... confirms that D. eleginoides s an opportunistic carnivore, whose feeding habits vary dependent on the ...
Meeting Document : WG-FSA-00/25 : Автор(ы): G. Pilling, T. Daw, M. Purves, D. Agnew and J. Xavier (United Kingdom)
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Uncertainty in acoustic surveys of Antarctic krill
provided corroboration to an empirical model developed from a linear regression. However, TS values have ... in species delineation was also investigated, through the development of a statistical technique for ... ). A method was developed for compensating acoustic biomass estimates for the effects of DVM. Applying ... the compensation function to survey data, the resulting biomass estimates were an average of 1.8 dB ...
Meeting Document : WG-EMM-95/72 : Автор(ы): Demer, D.A.
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Biology and harvesting of Dissostichus eleginoides around Kerguelen Island (Division 58.5.1)
information for population dynamics, as well as demographic structures and trends observed in an abundance ... Abstract: Dissostichus eleginoides is becoming an increasingly important species in the fisheries ... index are provided. Prospects for exploitation are discussed with respect to the development of fishing ... -adult/adult part of the stock. Fishing effort and corresponding catches are very variable from one year ...
Meeting Document : WG-FSA-91/09 : Автор(ы): G. Duhamel (France)
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Stable isotope analysis of tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni) in the Ross and Amundsen Sea regions
there for less than a year. Author(s): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A ... analysed, but only from the Ross Sea region. Appropriate corrections were made to account for the effect of ... other areas (northern Ross Sea seamounts, Ross Sea shelf and 88.2H); (3) after allowing for fish length ... toothfish sampled from the Amundsen Sea had not mixed with fish from the Ross Sea region for the 6 months ...
Meeting Document : WG-EMM-14/50 : Автор(ы): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)
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Development of the Patagonian toothfish (Dissostichus eleginoides) tagging program in Division 58.5.2, 1997–2014
that account for fleet dynamics, and phenotypic variability in post-release behaviour, remains an issue ... estimating key population parameters for toothfish in this region, and have been used in the 2014 stock ... currently be used in an unbiased manner to estimate stock abundance. Developing spatially explicit models ... for all assessments incorporating tagging data and, in particular, in Division 58.5.2. Plans to ...
Meeting Document : WG-FSA-14/43 : Автор(ы): D.C. Welsford, C. Péron, P.E. Ziegler and T.D. Lamb (Australia)
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