Search results
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A two-fleet ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
is updated to take account of further catch, GLM standardised CPUE and catch-at- length information that has ... of various constant annual catches for the two-fleet model are computed. Although higher sustainable yields ... be for the annual legal catch not to exceed 500 tonnes for the time being, together with encouragement ... is updated to take account of further catch, GLM standardised CPUE and catch-at- length information that has ...
Meeting Document : WG-FSA-05/58 : Author(s): A. Brandão and D.S. Butterworth (South Africa)
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DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT
Abstract: Measures are developed which aim to summarise the quality of fishing event, catch ... of position or time reporting errors, the diversity of catch, the extent to which catch data follow Benford ... Measures are developed which aim to summarise the quality of fishing event, catch, and biological ... or time reporting errors, the diversity of catch, the extent to which catch data follow Benford's Law ...
Meeting Document : WG-SAM-08/13 : Author(s): D.A.J. Middleton and A. Dunn (New Zealand)
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An initial examination of using CPUE as a fishery performance index for the krill fishery
management of the krill fishery. This analysis reviewed catch and effort data from the krill fishery ... be used to produce a fishery-scale performance index. The vessels-specific mean CPUE (log catch (kg) per ... differing relationship with the total catch in the same subarea. Comparison of the annual FPI with the krill ... of the krill fishery. This analysis reviewed catch and effort data from the krill fishery for the period 2001 ...
Meeting Document : WG-EMM-16/10 : Author(s): CCAMLR Secretariat
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PROPOSAL FOR REVISING CONSERVATION MEASURE 21-03 (2007) NOTIFICATION OF INTENT TO PARTICIPATE IN A FISHERY FOR EUPHAUSIA SUPERBA
Abstract: The amount of notified catch of krill fisheries is increasing above the trigger level ... recently, but the reported catch has remained about 100,000 tons. To address this problem, Japan proposes ... The amount of notified catch of krill fisheries is increasing above the trigger level recently ... , but the reported catch has remained about 100,000 tons. To address this problem, Japan proposes a revision ...
Meeting Document : SCIC-08/04 : Author(s): Delegation of Japan
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Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
could be compared with longline catches. Data quality was generally good. Of the 84 line recordings, 68 ... to ‘see’ close to the bottom is a major limitation that could only be avoided with the use of a towed ... targets counted from the echogram and the catch of rattails in the accompanying longline set. Bottom ... -referenced layers were present in 18% of line recordings and were also associated with higher catches ...
Meeting Document : WG-FSA-03/28 : Author(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Reporting procedures for the continuous fishing method
Abstract: Commercial catch rates are important information for scientific evaluation of the krill ... and standardized on all vessels conducting continuous trawling, ensures that the catch is estimated and recorded ... Commercial catch rates are important information for scientific evaluation of the krill resource ... vessels conducting continuous trawling, ensures that the catch is estimated and recorded at the correct ...
Meeting Document : WG-EMM-2019/06 : Author(s): F. Grebstad
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Haul data analysis from the Polish krill fishery in 1997–1999
vessel M/T Pollux facilitated the characterization of catches and concentrations of krill between ... and since the vessel carried out catches along with other Polish vessels, the results describe Polish ... catches in this period and area. Each fishing season was different. In 1997 the catches were carried out ... -70 minutes. Differences in catch rates in various areas and years were observed. The highest catch ...
Meeting Document : WG-EMM-00/17 : Author(s): E. Jackowksi (Poland)
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Integrated weight longlines with paired streamer lines – best management practice for demersal longline fisheries: preliminary results
of longlines is one method to effectively reduce seabird catch rates. We fished normal unweighted longlines (UW ... as a practical seabird mitigation device using multiple criteria: catch rates of seabirds and fish, seabird ... seabird bycatch rates while having little to no effect on fish catch rates. Sink rate measurements ... method to effectively reduce seabird catch rates. We fished normal unweighted longlines (UW ...
Meeting Document : WG-FSA-06/52 : Author(s): K. Dietrich, E. Melvin and L. Conquest (USA)
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Method for collecting of data on traumatic death of krill passed through the trawl meshes
of midwater trawl got to catch during trawling. Depending on stock structure, size and physiological state ... of krill individuals some part of them could pass through cover of net bag and escape of catch. In contact ... for fishing with hauling of full net for catch extraction. The analogous rating for fishing with fishpump ... got to catch during trawling. Depending on stock structure, size and physiological state of krill ...
Meeting Document : WG-EMM-12/43 : Author(s): V.V. Akishin, I.G. Istomin, V.A. Tatarnikov, A.F. Petrov and R.O. Lebedev (Russia)
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A method for spreading the risk of localised effects of catches of Antarctic krill up to the trigger level, during the development of stage 2 of feedback management
because the Commission, in the preambular paragraphs to that measure, recognised that localised catches up ... these requirements as the basis for a risk assessment method to distribute the catch. In the second section, we ... of fishing if the catch within a subarea is concentrated in those SSMUs. Nevertheless, the results also ... indicate that the distribution of catch amongst subareas in the existing conservation measure ...
Meeting Document : WG-EMM-16/69 : Author(s): A.J. Constable, S. Kawaguchi and M. Sumner