Search results
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An updated descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2004/05
, New Zealand vessels have tagged between 1.0 and 2.77 toothfish per tonne of catch. Tagging rates ... by area over the past three years have been in the same proportion as the catch by area. However ... 2001, but is still smaller than the mean size of fish taken in the commercial catch. Larger toothfish ... , New Zealand vessels have tagged between 1.0 and 2.77 toothfish per tonne of catch. Tagging rates ...
Meeting Document : WG-FSA-05/34 : Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014
in this division: two catch at length models including (ELAN_len model) or excluding (ELAN_tag model) the data from ... fish tagged in 2012, and a catch at age model including the data with a single age length key applied ... to all years (ELAN_age model). Another run was a catch at length model as ELAN_len model except using age ... : two catch at length models including (ELAN_len model) or excluding (ELAN_tag model) the data from fish ...
Meeting Document : WG-FSA-15/22 : Author(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Report on fishery and scientific activity of Ukraine in the Antarctic in 1993/94
and from 28.05 to 11.08.94 in subarea 48.3. According to operative data, summary catch of krill in March ... toothfish in the period from October 1993 to February 1994. The total catch in the above period made 942 ... production. The detailed processing of data on Soviet catch separately for divisions 58.4.1, 58.4.2, subarea ... to 11.08.94 in subarea 48.3. According to operative data, summary catch of krill in March-June 1994 was 8.708 ...
Meeting Document : SC-CAMLR-XIII/BG/12 : Author(s): Observer (Ukraine)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
–B), using revised catch, CPUE, catch-at-age and tag-recapture data from New Zealand vessels. The updated ... entirely due to the impact of the catch-at-age data from the shelf fishery. Parameterising the model ... catch, CPUE, catch-at-age and tag-recapture data from New Zealand vessels. The updated reference case ... to the impact of the catch-at-age data from the shelf fishery. Parameterising the model to better explain ...
Meeting Document : WG-FSA-06/60 : Author(s): A. Dunn and S.M Hanchet (New Zealand)
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Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
between 1.0 and 1.37 toothfish per tonne of catch. Tagging rates by area over the past three years have ... been in the same proportion as the catch by area. However, recapture rates have tended to be higher ... taken in the commercial catch. Larger toothfish (>35 kg) are difficult to tag without significant ... per tonne of catch. Tagging rates by area over the past three years have been in the same proportion ...
Meeting Document : WG-FSA-SAM-05/10 : Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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The effects of an experimental hake Merluccius capensis/paradoxus longline fishery on Procellariiform seabirds in South Africa - a preliminary investigation
100% of the catch on longlines during setting despite the fact that they were not the most abundant ... measures include: (1) the introduction of tori lines on all vessels which catch seabirds; (2) mandatory ... in the water are essential to further reduce catch rates of seabirds. Without the implementation of mitigation ... retrieved to determine species, sex and stomach contents. Whitechinned petrels constituted 100% of the catch ...
Meeting Document : WG-FSA-95/21 : Author(s): Barnes, K.
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Further development of a krill fishery simulation model
to account for variability in catch rates. The most successful management regime is found to be one which ... predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in catch. Closure ... % reduction in catches. Author(s): D.J. Agnew (Secretariat) Title: Further development of a krill fishery ... for variability in catch rates. The most successful management regime is found to be one which restricts fishing ...
Meeting Document : WG-Joint-94/04 : Author(s): D.J. Agnew (Secretariat)
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The state of Dissostichus eleginoides stock and TAC for 1990/91 in Subarea 48.3 (South Georgia)
determining growth rate, size and age composition, natural mortality and catch statistics an attempt was made ... to determine total biomass of adult toothfish in the area under investigation and the value of possible catch ... growth rate, size and age composition, natural mortality and catch statistics an attempt was made ... to determine total biomass of adult toothfish in the area under investigation and the value of possible catch ...
Meeting Document : WG-FSA-90/34 : Author(s): K.V. Shust, P.S. Gasiukov, R.S. Dorovskikh and B.A. Kenzhin (VNIRO and AtlantNIRO, USSR)
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The preliminary report on the survey in Subarea 48.2 in 2019
(Dissostichus mawsoni). Data on CPUE of target and main by-catch species, biological characteristics ... of toothfish, by-catch fish, results of seabirds and marine mammals observations are presented. Author ... ). Data on CPUE of target and main by-catch species, biological characteristics of toothfish, by-catch ...
Meeting Document : WG-SAM-2019/29 : Author(s): Delegation of Ukraine
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Using additional information for generalised yield model
of observations represented as abundance indices. Catch per effort values or results of inventory surveys can ... adjustment to the catch per effort values should give estimates of potential yield (2500 tons), essentially ... represented as abundance indices. Catch per effort values or results of inventory surveys can serve ... to the catch per effort values should give estimates of potential yield (2500 tons), essentially differing from ...
Meeting Document : WG-FSA-99/60 : Author(s): P.S. Gasiukov (Russia)