Search results
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CCAMLR observer manual questionnaires: summary results of preliminary analysis during its introductory period
Abstract: Preliminary analysis of data from the questionnaires of krill fishery behavior ... Preliminary analysis of data from the questionnaires of krill fishery behavior in CCAMLR observer ... format to better understand the nature of the fishery. Author(s): S. Kawaguchi and S. Nicol (Australia ... to better understand the nature of the fishery. ...
Meeting Document : WG-EMM-05/31 : Author(s): S. Kawaguchi and S. Nicol (Australia)
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Stock status and population assessment of the Antarctic starry skate (Amblyraja georgiana) in Subarea 48.3
Abstract: The Antarctic starry skate (Amblyraja georgiana), is currently listed as “Data ... fishery for Patagonian toothfish (Dissostichus eleginoides) around South Georgia in the Southern Ocean ... . Using ten years of tag-recapture data collected around South Georgia, a comprehensive analysis of data ... , address the uncertainties around species differentiation, characterise tag-recapture data from Antarctic ...
Meeting Document : WG-FSA-18/27 : Author(s): M. Söffker, N.D. Walker, M. Belchier and J. Ellis
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A method to evaluate selection of Antarctic krill in towed fishing gears
Abstract: The pelagic trawlers involved in the fishery for Antarctic krill (Euphausia superba ... The pelagic trawlers involved in the fishery for Antarctic krill (Euphausia superba) apply ... and is valuable information for the management of harvested marine stocks. Size selectivity data is traditionally ... of Antarctic krill in towed fishing gears Approval: Approved ...
Meeting Document : WG-EMM-13/34 : Author(s): L.A. Krag, B. Herrmann (Denmark), S. Iversen, A. Engås, S. Nordrum and B.A. Krafft (Norway)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
-by-100 mile study area centered on Elephant Island, Antarctica during January and February 1990. Data ... and primary productivity, the distribution and demography of krill, and the foraging patterns of krill ... as the western end of the Weddell-Scotia Confluence. Krill abundance increased approximately 5-fold over ... of the study area. Krill sampled throughout the observation period were reproductively mature and exhibited ...
Meeting Document : WG-CEMP-90/11 : Author(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)
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Population change in gentoo penguins Pygoscelis papua at South Georgia: potential roles of adult survival, recruitment and deferred breeding
Abstract: Data on breeding population size and breeding success in gentoo penguins at Bird Island ... , South Georgia from 1977-1992 are used, in conjunction with empirical (and some hypothetical) data ... of these years were associated with reduced availability of krill, one with very cold winter and spring ... of adult mortality. Emigration was most unlikely to be involved; no data are available on immigration ...
Meeting Document : WG-CEMP-93/08 : Author(s): J.P. Croxall and P. Rothery (United Kingdom)
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Results of research into distribution and status of stocks of target species in the Convention Area – Atlantic, Indian and Pacific Ocean sectors of the Antarctic
Abstract: The USSR has carried out coordinated fisheries research in Antarctic since 1961 ... condition and its variability, • main target species and its biological and fishery description ... and fishery description includes such items as geographical distribution, population structure, life span ... , length and weight, fishing mortality and recommended minimum mesh size. The analyses of data collected ...
Meeting Document : SC-CAMLR-III/INF. 10 : Author(s): USSR Delegation
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
: The Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... -release depredation rates are a priority for new assessments that use tag-recapture data. Due ... is also an important next step for Dissostichus spp. assessments that use tag-recapture data. File ... The Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data ... fish available for subsequent recapture. Data from CCAMLR exploratory fisheries indicate ... , A. and D.A.J. Middleton. 2009. Identification of data quality metrics for tagging data selec- tion. Document ... ) fishery in the Ross Sea. Document WG-SAM-11/18. CCAMLR, Hobart, Australia: 14 pp. Fay, G. and G.N. Tuck ... . Classifying tagging experiments for commercial fisheries into three fundamental types based on design, data ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Author(s): Welsford, D.C. and P.E. Ziegler
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Quality of positioning and estimates of green weight of krill when using the continuous fishing system
weight of krill when using the continuous fishing system Microsoft Word File: e-sc-xxxvi-11.docx ... Approval: Approved Secretariat Workflow Status: Content Approved Document Release Consent: Yes ... Delegation responsibility for releasing documents: CCAMLR Secretariat ... Quality of positioning and estimates of green weight of krill when using the continuous fishing ...
Meeting Document : SC-CAMLR-XXXVI/11 : Author(s): Delegation of Norway
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Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf
evidence for an ontogenetic migration from east to west as they grow. From the fisheries data available ... migration from east to west as they grow. From the fisheries data available, there is no evidence ... to the Ross Ice Shelf). The catch rates from the exploratory longline fishery typically show high temporal ... , there is no evidence for a northward contraction in the range of D. mawsoni over the course of the fishery ... evidence for an ontogenetic migration from east to west as they grow. From the fisheries data available ... the exploratory fishery and discuss these in relation to data on D. mawsoni from other sources to provide ... , and size composition of D. mawsoni. The fisheries data are also examined for any signs of contraction ... of the stock range since fishing began. Materials and methods The fishery data used in this report come from ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Author(s): Hanchet, S.M., S. Mormede and A. Dunn
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
to those observed in other predators in the region including the krill fishery. Analysis of habitat ... observed in other predators in the region including the krill fishery. Analysis of habitat associations ... of the region’s fisheries, shows an understanding of leopard seal ecology is vital in the management ... documents: United Kingdom ...
Meeting Document : WG-EMM-18/P09 : Author(s): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada