Résultats de la recherche
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Survey estimates of recruitment of toothfish in Subarea 48.3
, the modal progression of peaks in the length densities corresponding to cohorts assessed by sequential ... data used by the Working Group for toothfish assessments in 1999 and later were correct. We found ... surveys. Length based analysis of these confirms the growth rate expected from the CCAMLR growth equation ... for South Georgia. Although it is easy to spot cohorts, the size of individual cohorts can not be ...
Meeting Document : WG-FSA-SAM-04/16 : Auteur(s): Collins, M., Wakeford, R.C., Moir-Clark, J., Belchier, M., Agnew, D.J.
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A comparative morphometric analysis of sagittal otoliths of three icefishes (Channichthyidae) in Antarctic waters
Abstract: In the present study a comparative morphometric analysis of sagittal otoliths was ... differences between the left and right sagittae in BSDs, a univariate and multivariate ANOVA and MANOVA were ... from the 20 harmonics analyzed were homoscedastic and normal, and showed very low level of correlation ... in the contour between both otolith pairs for each species (p<0.001). Similarly, EFS coefficients ...
Meeting Document : WG-FSA-18/47 : Auteur(s): G. Plaza, C. Rodríguez-Valentino and P.M. Arana
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Validation of age determination in Notothenia coriiceps, by means of a tag-recapture experiment at potter cover, South Shetland Islands
of 11-21 months. A comparison was carried out between the annuli found in scales removed before and ... after the period of liberty. In scales of those specimens recovered after 11-13 months, one extra ... deposition of the annulus in scales and otoliths of N. coriiceps. A preliminary analysis of scales ... Shetland Islands, in successive years from 1989 to 1992, 9 were recaptured at the same site after periods ...
Meeting Document : WG-FSA-94/12 : Auteur(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)
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Models of Antarctic marine ecosystems in support of CCAMLR and IWC: background
to the use of ecosystem models in CCAMLR and the IWC and a history of the developmental work in those ... CCAMLR and the IWC. Author(s): Constable, A. Title: Models of Antarctic marine ecosystems in support of ... is currently in draft form open to comment and is being developed to provide an introduction to the ... organisations. It also provides an outline of the nature of modelling for these purposes and the general issues ...
Meeting Document : CCAMLR-IWC-WS-08/03 : Auteur(s): Constable, A.
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Report of activities performed under support of CCAMLR Scientific Scholarship in 2019
Abstract: A list of events attended by the Scholarship holder for 2019 with the support of the ... CCAMLR Scientific Scholarship is presented. The types of work that have been completed and the knowledge ... Title: Report of activities performed under support of CCAMLR Scientific Scholarship in 2019 Approval ... that is planned to be acquired during the visit to the Mentor are presented. Author(s): I. Slypko ...
Meeting Document : SC-CAMLR-38/BG/23 : Auteur(s): I. Slypko
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Sources of variance in studies of krill population genetics
Abstract: There is a long-term interest in the population genetics of Antarctic krill species ... resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ... because of their ecological end economic importance. The possibility that there are distinct genetic ... stocks of these species would affect the design of management strategies for conserving them. A recent ...
Meeting Document : WG-EMM-01/12 : Auteur(s): S.N. Jarman and S. Nicol (Australia)
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... % in 2002 to 89% in 2002. Less than 10% of the potential trawl survey area was fishable in all three ... Abstract: This report presents results from a desktop study to determine the feasibility of ... and previous research cruises. The major limitation on a trawl survey in the Ross Sea is ice cover. On ...
Meeting Document : WG-FSA-SAM-04/07 : Auteur(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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On possibility of using acoustic method to improve quality of Champsocephalus gunnari biomass estimates in Subarea 48.3
acoustic and biological data obtained by Russian RN ATLANTIDA in the area of South Georgia Island (January ... Abstract: An attempt has been made to study icefish as an object of acoustic survey basing on the ... obtained from the catches by midwater trawl to those estimated with TS in situ measurements for fish ... recorded within the pelagic zone. Basing on the analysis of acoustic measurements and results of commercial ...
Meeting Document : WG-FSA-00/31 : Auteur(s): S. Kasatkina (Russia)
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Results of acoustic assessment of krill biomass in Subarea 48.2 during summer 1996
Abstract: In the period from 24 February to 7 March 1996 in the cruise of RV "Atlantida" ... sq.mi1es was located in the zone of two circulation systems of climatic scale interaction: Antarctic ... ). Recorded range of MSBS values variations was (-77÷-43) dB. Kri11 biomass estimation in the study area ... ; acoustic assessment of krill biomass and distribution was carried out in study area restricted with 59° 10 ...
Meeting Document : WG-EMM-96/36 : Auteur(s): Sunkovich, V.I., Kasatkina, S.M., Abramov, V.M., Polischuk, M.I., Sushin, V.A., Shnar, V.N.
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... might affect the distribution of fishing effort. A comparison of CEMP parameters from two years with ...
Meeting Document : WG-EMM-14/36 : Auteur(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)