Search results
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An updated information of the Japanese krill fishery in the Antarctic
Abstract: Annual summary of Japanese krill fishery in the Antarctic was updated with delineation ... of two different type of operation. Operated areas in 1983/84 and 1984/85 seasons were illustrated ... updated information of the Japanese krill fishery in the Antarctic Approval: Approved ...
Meeting Document : WS-KCPUE-85/05 : Author(s): Y. Shimadzu (Japan)
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Standardised CPUE analysis of the Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2005/06
) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... fishing years. This report revises and updates the previous analysis with the addition of data from the ... vessels to set lines, in addition to extreme ice conditions that limited where lines could be set. None of ... learning and experience, including improved knowledge of optimum fishing practise, and improvements in gear ...
Meeting Document : WG-FSA-06/47 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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FURTHER DEVELOPMENTS OF A SIMULATION MODEL, ‘PATCH’, FOR EVALUATING MANAGEMENT STRATEGIES TO CONSERVE BENTHIC HABITATS (VULNERABLE MARINE ECOSYSTEMS) WHICH ARE POTENTIALLY VULNERABLE TO IMPACTS FROM BOTTOM FISHERIES
ecosystems’ in order to maintain the ecological structure and function of, particularly, deep sea benthic ... habitats. Noting the paucity of data on the ecology of these habitats, this paper further develops a ... requirement can be translated into a simple operational objective: Maintain the quality of habitats above the ... paper describes how the simulation model, Patch, has been updated according to the recommendations of WG ...
Meeting Document : WG-FSA-09/42 : Author(s): A.J. Constable (Australia)
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At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
Abstract: Commercial fisheries may impact marine ecosystems and affect populations of predators ... superba that is projected to increase further. Comparing distribution and prey selection of fishing ... the ones breeding far away and that disperse during the non- overlap between the distribution of the ... Antarctic krill fisheries and the distribution of a krill dependent seabird, the Antarctic petrel ...
Meeting Document : WG-EMM-16/P15 : Author(s): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe
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Preliminary results from a study examining spatial structure and connectivity in Patagonian toothfish (Dissostichus eleginoides) in the South Atlantic section of the Southern Ocean
of otoliths from Patagonian toothfish (Dissostichus eleginoides), and examined whether the elemental ... American continental shelf near the Falkland Islands. Furthermore, we examined the elemental signatures of ... been taken from different locations. We found signatures on the otolith edge of fish from South Georgia ... and Shag Rocks showed distributions characterized by lower levels of Mn/Ca than samples from the FOCZ ...
Meeting Document : WG-FSA-03/86 Rev. 1 : Author(s): J.R. Ashford (USA), A. Arkhipkin (United Kingdom) and C.M. Jones (USA)
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Summary of toothfish tagging suitability data from paired Spanish line – trotline sets
only tag fish with a high probability of survival. Further it recommends that fish hooked only in the ... mouth should be tagged. A new data collection form was implemented in 2012 to allow evaluation of fish ... these data and data from tag release forms to assess suitability of captured toothfish for tagging. Data ... tagging was most related to species, soak time, and fish size. For both gear types, an adequate number of ...
Meeting Document : WG-FSA-12/49 : Author(s): S. Parker and D. Fu (New Zealand)
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Vast assembly of vocal marine mammals from diverse species on fish spawning ground
information on prey distribution and abundance as well as distribution and activity of their top predators ... echoes used in the assessment of prey abundance and distribution. Periodically, only the receiver array ... methodology offer coverage of 10s of km and may thus inform about variability issues now causing troubles in ... the assessment of krill using conventional acoustic methods. Author(s): D. Wang, H. Garcia, W ...
Meeting Document : WG-EMM-16/P01 : Author(s): D. Wang, H. Garcia, W. Huang, D.D. Tran, A.D. Jain, D.H. Yi, Z. Gong, J.M. Jech, O.R. Godø, N.C. Makris and P. Ratilal
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Implementation of the modified Petersen mark–recapture method in S-Plus
Abstract: The mark-recapture method of estimating toothfish population size described last year ... , which uses a modification of the Petersen estimator to take account of mortality and selectivity, is ... : Implementation of the modified Petersen mark–recapture method in S-Plus Approval: Approved ...
Meeting Document : WG-FSA-SAM-05/7 : Author(s): A. Payne, D.J. Agnew and R. Hillary (United Kingdom)
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A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the 2004/05 season
). A range of model sensitivities were examined, with the base case assuming the Ross Sea fishery as a ... evidence of non-convergence, particular in the declining right-hand limb of the fishing selectivity ... this would have little impact on the estimates of key model parameters and yield estimates. MCMC ... estimates of initial (equilibrium) spawning stock abundance (B0) were 69 400 t (95% credible intervals 47 ...
Meeting Document : WG-FSA-05/33 : Author(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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EVALUATION OF VME TAXA MONITORING BY OBSERVERS FROM FIVE VESSELS IN THE ROSS SEA REGION ANTARCTIC TOOTHFISH LONGLINE FISHERIES DURING THE 2008-09 SEASON
most areas south of 60 °S) to monitor longline bycatch for VME indicator organisms. Observers ... these samples for subsequent onshore classification by taxonomists. Comparison of the observer’s ... were reasonably accurate. Classification of two groups requires further development of training ... on the taxonomic composition and distribution of VME taxa in the Ross Sea region and elsewhere in the ...
Meeting Document : TASO-09/08 : Author(s): Carter, M., Parker, S.J., Mormede, S., Tracey, D.M.