Search results
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Tag linking – revised algorithm (2019)
descriptions and diagnostics that could be provided to facilitate the adoption of this change in tag-linking ... fisheries and linking the details of recaptured fish to that of tagged fish is a key element of the ... programme. The CCAMLR Secretariat has developed a new tag linking approach that is designed to provide ... greater flexibility in linking recaptures to releases, including where a recapture is linked with equal ...
Meeting Document : WG-SAM-2019/07 : Author(s): CCAMLR Secretariat
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An iterative model to construct an age/length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
estimation of age composition of catch requires that age/length data and random length frequency have been ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eleginoides was obtained with the application of a single age/length key ... that age distribution derived from the model is not significantly different from the one obtained by ... estimation of age composition of catch requires that age/length data and random length frequency have been ... could be biased. By using an iteration algorithm it is possible to overcome this limitation. The age ... composition of catch for Dissostichus eZeginoides was obtained with the application of a single age/length ... that age distribution derived from the model is not significantly different from the one obtained by ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 11–20 : Author(s): Robotham, V. H. and Z. Young U.
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Quantifying the impacts of ice on demersal longlining in CCAMLR Subarea 88.1 with updated information on the 2014/15 season
was presented in WG-FSA-14/55 to quantify the level of impact that ice conditions have on fishing by ... for fishing ranking overall as the third worst in the sixteen-year series. We recommend that the ... fishability index be incorporated into the Ross Sea fishery report. Author(s): J.M. Fenaughty and S.J. Parker ... (New Zealand) Title: Quantifying the impacts of ice on demersal longlining in CCAMLR Subarea 88.1 with ...
Meeting Document : WG-FSA-15/35 : Author(s): J.M. Fenaughty and S.J. Parker (New Zealand)
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Fishery Report: Dissostichus eleginoides (TOP) Heard Island (Division 58.5.2)
2 3690 0 0 3547 3547 427 3974 2000 2 3585 0 0 3566 3566 1154 4720 2001 2 2995 0 0 2980 2980 2004 4984 ... -fishery; s – season. The seasons are defined by the fishery being open to longline fishing, with season ... undertaken since 1990 (Table 4). The survey design was consolidated in 2001 and the distribution of stations ... 1999 2 Apr SC DT 84 528 80 661 139 93 2000 6 May SC DT 39 839 32 952 103 9 2001 1 May SC DT 85 170 85 ...
Document : Site Section: Publications
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PRELIMINARY ESTIMATION OF PENGUIN BREEDING ABUNDANCE AT SPATIAL-SCALES OF RELEVANCE TO CCAMLR: INCORPORATING UNCERTAINTY IN COUNT DATA
Antarctic data for Adélie penguins. It was recognised that the abundance estimates would not be corrected ... immediate inter-sessional work to be reported to WG-EMM-08. The work to be undertaken included preliminary ... for availability (e.g. nest failure) and hence would to some extent be biased estimates of the ... , uncertainty associated with accuracy or repeatability of the counts varied substantially between SSMUs (95 ...
Meeting Document : WG-EMM-08/53 : Author(s): H. Lynch, R. Naveen (USA), J. McKinlay, C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, S. Trivelpiece (USA) and D. Ramm (CCAMLR Secretariat)
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
reason, we propose the mitigation rule that 50% of lines are required to be separated by not less than 3 ... such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... coefficient variance of biomass estimate from the bootstrapped procedure, under the condition that the ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ...
Meeting Document : WG-FSA-13/37 : Author(s): Delegation of Japan
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Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region
(M. caml) and 4.1–4.3 (M. whitsoni), consistent with one or both of these species being a main prey ... of these species being a main prey of Antarctic toothfish. ... ) and 4.1–4.3 (M. whitsoni), consistent with one or both of these species being a main prey of Antarctic ... toothfish. Pinkerton et al. 38 al., 2012a). These studies probably represent a mix- ture of the two ... Bertalanffy growth curves for the mix- ture of Macrourus spp. from Marriott et al. (2006) seemed inconsistent ... , freezing and rethawing. Macrourus caml (females, at least) were relatively stout, being about 20% heavier ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Author(s): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown
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Results of the tagging experiment for (D. eleginoides) in Subarea 48.4, 2007 update
Subarea 48.4, catching 54 t of toothfish. A total of 291 D. eleginoides and 1 D. mawsoni were tagged and ... the mark-recapture experiment in Subarea 48.4 in 2007/08. Initial estimates of population size will be ... may need to be extended for a few more years. Author(s): J. Roberts and D.J. Agnew (United Kingdom ...
Meeting Document : WG-FSA-07/32 : Author(s): J. Roberts and D.J. Agnew (United Kingdom)
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Directions followed by the French fishing companies involved in the toothfish fishery of the French EEZ, in order to minimise the incidental mortality of birds
toothfish fishery of the French EEZ gave up trawling for fishing with longlines in order to protect ... companies during the 2005/2006 fishing season- and which will be followed during the 2006/2007 fishing ... that they took and which is part of a global treatment of the problem of the birds incidental mortality ... which takes place in the French EEZ. Beyond the reduction of the mortality which can be estimated ...
Meeting Document : SC-CAMLR-XXV/BG/23 : Author(s): Delegation of France
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Conservation at CCAMLR: Understanding Article II of the Convention on the Conservation of Antarctic Marine Living Resources
“conservation” is the Convention’s singular objective, and that any rational use must be consistent with that ... examination consistently emphasizes that the central object and purpose of the Convention is conservation. It ... is clear to our delegations that the correct way to think about “conservation” in CCAMLR is that ...
Meeting Document : CCAMLR-XXXV/BG/28 : Author(s): Delegations of Australia and the USA