Résultats de la recherche
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CPUE indices used in Soviet krill fishery statistics from 1977 to 1992 and their possible utility for evaluation of relative changes in krill biomass
possible utility for evaluation of relative changes in krill biomass Abstract / Description: Key catch-per ... and primary data for their calculations, were examined. The main CPUE indices were catch per vessel ... -days fished (CVDF), catch per extended vessel-days fished (CEVDF) and catch per hour of trawling (CHT ... per day was higher. The correlation between catch and tow time was considered to be an indicator of ... @atlant.baltnet.ru Abstract Key catch-per-unit-effort (CPUE) indices used in Soviet krill fi shery statistics, as ... CPUE indices were catch per vessel-days fi shed (CVDF), catch per extended vessel-days fi shed (CEVDF ... ) and catch per hour of trawling (CHT). A relatively high correlation between mean monthly values of ... catch and tow time was considered to be an indicator of homogeneity in krill distribution. The utility ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 165–177 : Auteur(s): Litvinov, F.F., A.Z. Sundakov and V.I. Arkhipov
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CONTINUING CCAMLR’S FIGHT AGAINST IUU FISHING FOR TOOTHFISH EXECUTIVE SUMMARY OF THE REPORT BY TRAFFIC INTERNATIONAL AND WWF AUSTRALIA
with WWF Australia that presents a trade-based assessment of toothfish catch for the period of 2003 ... -2007 with a view to provide an indication of the extent of the IUU catch. The report highlights that in ... the period 2004 to 2007 the percentage of trade represented by IUU catch is estimated to average 17 ... underestimating IUU catch by more than 50% annually. This analysis reinforces the need for ongoing vigilance by ...
Meeting Document : CCAMLR-XXVII/BG/38 : Auteur(s): Submitted by IUCN
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Influence of data quality and quantity from a multiyear tagging program on an integrated fish stock assessment
, particularly the effects of the size of tagged fish compared with the size of fish in the catch (tag size ... -overlap), numbers of tagged fish, duration of the tagging program, using catch-at-length or catch-at-age ... assessment. Biomass estimates were largely unaffected by the stock depletion level; however, using catch-at ... -age compared with catch-at-length improved recruitment estimates and resulted in more conservative ...
Meeting Document : WG-FSA-13/P03 : Auteur(s): P. Ziegler
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Has krill fishing the potential to adversely affect recruitment in Antarctic notothenioid fishes?
by-catch in fisheries targeting krill. The species composition of fish by-catch in krill fisheries is ... , the by-catch was substantial. Fish by-catch in krill fisheries has been discussed in WG-FSA since the ... 25 years later WG-FSA is still not in the position to estimate the amount of fish by-catch reliably ...
Meeting Document : WG-FSA-14/66 : Auteur(s): K.-H. Kock (Germany) and C.D. Jones (USA)
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Report of biological observations carried out on board the krill fishing vessel More Sodruzhestva in April to August 1991
observation of krill fishing operations, collection and processing of catch samples for analysing ... physiological status and size composition of krill and also for determining the level of by-catch of juvenile ... channichthyids. In general, krill density in Subarea 48.2 was twice as high as that in Subarea 48.3. Catch-per ... and 35 to 36 mm made up the bulk of catches in the south-east of the subarea. No by-catch of juvenile ...
Meeting Document : WG-KRILL-92/06 : Auteur(s): V.I. Latogursky (Russia)
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Exploring variability in the locations used by the krill fishery in Area 48 in relation to intra- and inter-annual variability in seasonal sea ice
Abstract: We present preliminary analyses of krill fishery catch data covering the period ... . This often allows fishing to late June and, sometimes, throughout the winter. Overall, the mean catch ... location in Subarea 48.1 has shifted in recent years with most catch being taken south of the South ... Shetland Islands since 2008/09 in contrast to earlier years when the mean catch location was always to the ...
Meeting Document : WG-EMM-14/11 : Auteur(s): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
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Updating the 2017 stock assessment of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
) will require modifications to the previous method the estimation of catch splits in the calculation of ... assessment will need to be modified to respond to changes in the fishing catch and effort distributions that ... while including updated catch, age-frequency, and tag-release and recapture data. Yield projections ... should be run that incorporate short term catch split options as required by CM 91-05. Additional options ...
Meeting Document : WG-SAM-17/41 : Auteur(s): S. Mormede and S. Parker
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Modifications proposées à la mesure de conservation 10-05 pour élargir les possibilités de participation des Parties non contractantes au système CCAMLR de documentation des captures à l'égard des captures saisies ou confisquées
participate in the Catch Documentation Scheme (CDS), where they have seized or confiscated Dissostichus spp ... . catch. The amendments are based on the options presented by Australia at CCAMLR XXXIV (2015) and ... the scope of how Non-Contracting Parties can participate in the CCAMLR Catch Documentation Scheme for ... seized or confiscated catch Microsoft Word File: e-cc-xxxv-17.docx Approval: Approved Secretariat ...
Meeting Document : CCAMLR-XXXV/17 : Auteur(s): Delegation of Australia
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... SSRUs 48.6G and 48.6E. For the Patagonian toothfish the accumulated catch was 349 tons and almost all ... %). Unstandardized raw catch and effort data suggested that the median catch per unit of effort in Antarctic ...
Meeting Document : WG-SAM-12/33 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... SSRUs 48.6G and 48.6E. For the Patagonian toothfish the accumulated catch was 349 tons and almost all ... %). Unstandardized raw catch and effort data suggested that the median catch per unit of effort in Antarctic ...
Meeting Document : WG-FSA-12/38 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)