Search results
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Different CPUE types in Soviet krill fishery statistics in 1977–1992
and primary data for their calculations were considered. The main CPUE indices were catch per fishing day (CFD ... ), catch per extended fishing day (CEFD) and catch per hour (CH). The primary data for all the calculations ... were catch per haul and haul duration. There is rather high correlation between mean monthly values ... data for their calculations were considered. The main CPUE indices were catch per fishing day (CFD ...
Meeting Document : WG-EMM-03/35 : Author(s): F.F. Litvinov, A.Z. Sundakov and V. Arkhipov (Russia)
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PRELIMINARY RESULTS OF TRIALS TESTING MODIFIED LONGLINE GEAR ‘TROTLINES’ IN PRESENCE OF CETACEANS IN SUBAREA 48.3
Abstract: 1. Paired trials were undertaken to compare toothfish catch rates and by-catch ... the potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number ... 1. Paired trials were undertaken to compare toothfish catch rates and by-catch composition ... the potential of this gear to reduce cetacean depredation. 3. By-catch to catch ratio was greater by number ...
Meeting Document : WG-FSA-08/44 : Author(s): R.E. Mitchell, J. Clark, P. Reyes, L. Jones, J. Pearce, C.E. Edwards and D. Agnew (UK)
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Analyses of illegal, unreported and unregulated (IUU) fishing activities in Divisions 58.4.1 during the 2013/14 season and 58.4.3b during the 2014/15 season
Abstract: Following Operation Sparrow 2, WG-FSA-17 noted the unprecedented availability of catch ... data from four IUU vessels including reported removals, video footage, and catch in gillnets recovered ... -temporal distributions of catch and effort by the Chang Bai, Nihewan and Jiangfeng in Division 58.4.1 ... and caught a total of 792 tonnes of toothfish. Daily catch rates were similar between IUU and authorised ...
Meeting Document : WG-FSA-18/60 : Author(s): Delegation of Australia and CCAMLR Secretariat
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Results of trials undertaken around Crozet Island using pots to target Patagonian toothfish
. The catch rate of Patagonian toothfish with pot was lower than when using longline but direct comparison ... and in their by catch. Crab by-catch was identified as a major issue which still needs to be solved. Furthermore ... such fishery. Bird by-catch and depredation was eliminated using pot. Author(s): N. Gasco, P. Tixier ... with longliners. This paper describes the trial and the results obtained with different pot models. The catch rate ...
Meeting Document : WG-FSA-10/10 : Author(s): N. Gasco, P. Tixier and C. Guinet (France)
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Estimation of the fishery–krill–predator overlap
by CCAMLR (catch in the Critical Period and Distance [CPD], Agnew-Phegan index, and Realised Potential ... . Only catch in the CPD can presently be used to estimate overlap in areas other than Subarea 48.1 ... . The catch in the CPD and the Agnew-Phegan index were closely correlated, as were the RPO and Schroeder index ... in the level of overlap in recent years (1995-98) than estimated with either the catch in the CPD or the Agnew ...
Meeting Document : WG-EMM-99/11 : Author(s): Secretariat
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Results of krill fishery in Subarea 48.2 in the 2009 season based on data of the Russian vessel Maxim Starostin
out during 71 fishing days. Mean catch per hour trawling is 5,6 t/h. Data on daily catch, catch per ... carried out during 71 fishing days. Mean catch per hour trawling is 5,6 t/h. Data on daily catch, catch ...
Meeting Document : WG-EMM-10/08 : Author(s): S.Yu. Gulyugin, V.E. Polonskiy and S.M. Kasatkina (Russia)
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KPFM2, be careful what you ask for – you just might get it
on the allocation of catch among the SSMUs (i.e., add seasonality, consider alternative movement hypotheses, add ... the distribution of simulated catch to the distribution of historical catch). We have added a substantial number ... for allocating the precautionary krill catch among SSMUs. Author(s): G.M. Watters, J.T. Hinke (USA), K. Reid ... the WG-EMM indicated would be required to use the model for providing advice on the allocation of catch ...
Meeting Document : WG-EMM-06/22 : Author(s): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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Using effective sample sizes to evaluate the efficiency of length samples collected by at-sea observers in the krill fishery in Subarea 48.1
Abstract: Catch at length is an important input into any stock assessment. Consequently ... , collecting length data from the catch is a task undertaken by all at sea observes in CCAMLR fisheries ... used C1 effort, catch and observer data from Subarea 48.1, collected between 2010 and 2015 ... of hauls to allow better estimates of catch at length. Author(s): N. Kelly, S. Kawaguchi, P. Ziegler ...
Meeting Document : WG-SAM-16/39 : Author(s): N. Kelly, S. Kawaguchi, P. Ziegler and D. Welsford
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Spatial aggregation of harvesting in Subarea 48.1, in particular during the summer and close to the coast
Abstract: We explore CCAMLR Catch and Effort data from the fishery for Antarctic krill ... as the associated level of catch has increased in Subarea 48.1 during the penguin breeding season. We explore ... . The fishing aggregation comprised 3 periods of harvesting; catch rates per hour showed evidence of decline ... was closed having reached the Subarea trigger allocation. Though the collective catch comprised 27 ...
Meeting Document : WG-EMM-16/17 : Author(s): P. Trathan and S. Hill
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys
around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... as a result of oceanographic conditions. About 50% of the catch in Subarea 48.1 from December to March ... % of the catch in Subarea 48.2 between December and March was taken within 80 km of colonies in the South Orkneys ... that for some years, months and zones of distance from the shore the catch of krill is 50% or more of the land ...
Meeting Document : SC-CAMLR-X/BG/07 : Author(s): Secretariat