Search results
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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%, compared ... catch by more than 50% annually. This analysis reinforces the need for ongoing vigilance by CCAMLR ...
Meeting Document : CCAMLR-XXVII/BG/38 : Author(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 ... . 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 biomass ...
Meeting Document : WG-FSA-13/P03 : Author(s): P. Ziegler
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Has krill fishing the potential to adversely affect recruitment in Antarctic notothenioid fishes?
to by-catch in fisheries targeting krill. The species composition of fish by-catch in krill fisheries is well ... , the by-catch was substantial. Fish by-catch in krill fisheries has been discussed in WG-FSA since the mid-1980s ... WG-FSA is still not in the position to estimate the amount of fish by-catch reliably and to decide ... that early life stages of Antarctic fish are associated with krill aggregations and are subject to by-catch ...
Meeting Document : WG-FSA-14/66 : Author(s): K.-H. Kock (Germany) and C.D. Jones (USA)
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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 ... the assessment will need to be modified to respond to changes in the fishing catch and effort distributions ... 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 could also be developed ...
Meeting Document : WG-SAM-17/41 : Author(s): S. Mormede and S. Parker
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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 ... dominant in catches taken in April/May in the north-west of Subarea 48.2. Krill of modal sizes 31 to 32 mm ...
Meeting Document : WG-KRILL-92/06 : Author(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 ... 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 north and west ...
Meeting Document : WG-EMM-14/11 : Author(s): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
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Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients
Abstract: If we could determine the relationship between catch rates in a trap survey ... from a survey conducted with traps. One way to calibrate the catch rates is to examine available ... historical Leslie analyses of commercial catch data obtained over several years and quantify the relationship ... between catch rate at the beginning of the season and the corresponding population estimate obtained ...
Meeting Document : WS-CRAB-93/13 : Author(s): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)
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Descriptive analysis of haul data from FV Atlantic Navigator in Elephant Islands (48.1), South Georgia Islands (48.3) and South Orkney Islands (48.3) krill fishery (summer 2004 to early winter 2005)
were analyzed to describe differentialy catch rates (catch per day and catch per minute) of the three ... different fishing zones studied. The total catch registered was 41837 tonnes: 50% of this capture ... was obtained at South Orkney islands zone. The highest catch rate were calculated for the same fishing zone ... to describe differentialy catch rates (catch per day and catch per minute) of the three different fishing ...
Meeting Document : WG-EMM-05/12 : Author(s): O. Pin, H. Nión, E. Delfino and P. Meneses (Uruguay)
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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 ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels from Japan ...
Meeting Document : WG-SAM-12/33 : Author(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 ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels from Japan ...
Meeting Document : WG-FSA-12/38 : Author(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)