Résultats de la recherche
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THE SELECTION OF TRIPS BASED ON DATA METRICS FOR THE ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: A dataset for the 2009 assessment of Antarctic toothfish (Dissostichus mawsoni) in the ... Ross Sea Region was selected on the basis of data quality metrics for individual trips. Initial ... released tags, and/or where tags released on the trip were subsequently recaptured at a high rate. These ... respect to tagging data. Other trips with data quality metric values within these ranges were added to the ...
Meeting Document : WG-FSA-09/35 : Auteur(s): D.A.J. Middleton (New Zealand)
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Natural mortality rates of the Antarctic krill Euphausia superba Dana in the Indian sector of the Southern Ocean
Abstract: Data on the size and age composition of Euphausia superba were collected in the ... Cooperation and Cosmonaut Seas from 1985 to 1990. The coefficients of instantaneous natural mortality of ... E.superba in the Indian sector of the Southern Ocean were calculated according to Alverson-Carney’s (1975 ... 0.59 and from 0.94 to 2.30, respectively. The estimation of the annual extinction rate of E. superba ...
Meeting Document : WG-KRILL-93/44 : Auteur(s): E.A. Pakhomov (Ukraine)
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An update on the development of a management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
status for the toothfish resource in the Prince Edward Islands region that were developed last year are ... a constant future catch suggest that the two scenarios will only be qualitatively distinguished in ... the short-term by an increase in the mean length of longline-caught toothfish over the next five years ... for the “Pessimistic”, but not the “Optimistic” case. Accordingly the performance of a simple MP ...
Meeting Document : WG-FSA-SAM-06/12 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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Some peculiarities of the distribution and fishing of Euphausia superba in the Indian sector of the Southern Ocean (by results of USSR fleet operations in 1970–1990)
operations in the Indian sector of the Southern Ocean (statistical divisions 58.4.1 and 58.4.2) for the ... purposes of the searching of fishable aggregations of Antarctic krill (Euphausia superba). Commercial ... fishing for the Antarctic krill in the Indian sector of the Southern Ocean was carried out from 1977 to ... 1984. The main peculiarity of fishable aggregations in the Cooperation Sea as a rule out of shelf water ...
Meeting Document : WG-EMM-12/35 : Auteur(s): L. Pshenichnov (Ukraine)
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Review of the Russian marine researches in the south-eastern part of the Atlantic Antarctic Area (20°W–30°E)
Abstract: The review of Russian expeditions carried out during 1970-2000 in the south-eastern ... part of the Atlantic Antarctic Area was discussed. Distribution of krill with reference to the ... structure and dynamics of the water masses, species dominated in Phytoplankton and Ichthyofauna were ... analyzed. It was shown that the area of the continental slope and shelf of Antarctica (between 20ºW and ...
Meeting Document : WG-EMM-14/20 : Auteur(s): V. Shnar and S. Kasatkina (Russia)
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Update on the analysis of fish by-catch in the krill fishery using data from the CCAMLR Scheme of Scientific Observation
Abstract: Data on fish bycatch in the krill fishery has been collected as part of the CCAMLR SISO ... from a total of 9303 hauls collected on 60 cruise involving 18 different vessels over the period 2010 ... -2014. This paper examines the frequency of occurrence, proportion by mass and length-frequency ... distribution of the fish taxa reported. The frequency of occurrence of fish for each vessel ranged from 0.1 to ...
Meeting Document : WG-EMM-14/31 Rev. 1 : Auteur(s): Secretariat
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Discrimination of two species of grenadier (Gadiformes, Macrouridae), Macrourus whitsoni and M. caml, in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2) on the basis of otolith morphometrics
Abstract: Two species of grenadier are predominatly taken as bycatch in the Ross Sea region ... fish taken as bycatch in the Ross Sea on New Zealand fishing vessels in the 2011–12 fishing year were ... used to test whether the otoliths of the two species can be discriminated. Samples of both species of ... in the sample were 34.5–65.1 cm total length (TL), and 12.0–24.0 cm pre-anal length (PAL); lengths of ...
Meeting Document : WG-FSA-14/63 : Auteur(s): M.H. Pinkerton, C. Ó Maolagáin, J. Forman and P. Marriott (New Zealand)
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Results of the longline survey for toothfish in the northern Ross Sea region (SSRU 88.2A) by the FV Seljevær, Norway
Abstract: A multi-year, multi-member research program was established to map and sample the ... fishable areas of SSRUs 88.2 A–B north of 66° S latitude. During the 5 th- 7 th February 2015, the ... Norwegian fishing vessel FV Seljevær surveyed SSMRU 88.2 A, research block 3, defined in the multi-Member ... release tagged fish and collect information on the characteristics of the toothfish inhabiting the region ...
Meeting Document : WG-SAM-15/42 : Auteur(s): Delegation of Norway
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Progress in the evaluation of management strategies for the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
Abstract: Management Strategy Evaluation (MSE) has been acknowledged as the best practice to take ... account of uncertainties in the assessment of stocks and as a method to ensure robust management ... approaches. The Scientific Committee of CCAMLR has recommended MSE be used to determine the extent to which ... the management objectives for toothfish fisheries are being met. While the choice of management ...
Meeting Document : WG-SAM-15/48 : Auteur(s): S. Mormede, A. Dunn, S.J. Parker and S.M. Hanchet (New Zealand)
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Peculiarities of spatial-temporal variability of oceanological conditions in the Weddell Sea region in the context of the development of a stock hypothesis for Antarctic toothfish (Dissostichus mawsoni) in Area 48
Abstract: A significant spatial-temporal variability of the oceanological environmental ... conditions influencing the formation of biological productivity zone in Subareas 48.5 and 48.6 is revealed ... . Analysis of available information for the development of the stock hypothesis for Antarctic toothfish stock ... in Area 48 requires consideration of environmental variability, especially with the fragmentary ...
Meeting Document : WS-SM-18/11 : Auteur(s): V. Shnar and S. Kasatkina