Search results
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
viewed with transmitted white light provided the clearest growth bands, but reading precision was low ... maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because of ... the possibility that thorn growth ceases in large individuals. Von Bertalanffy growth curves are ... = 70.8(1-e-0.308[t+1.10]), where Lt is the pelvic length (PL) in centimetres at age t. Applying this ...
Meeting Document : WG-FSA-04/29 : Author(s): M.P. Francis and C. Ó Maolagáin (New Zealand)
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Development of best practices for the collection of longline data to facilitate research and analysis to reduce by-catch: report of a workshop held at the International Fisheries Observer Conference
of protected species. • Identify data not currently being gathered systematically that might facilitate ... of protected species. • Identify data not currently being gathered systematically that might facilitate ...
Meeting Document : WG-FSA-05/45 : Author(s): K.S. Dietrich, K.S. Rivera, V. Cornish and T. Conant (USA)
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Multinational large-scale krill synoptic survey in CCAMLR Area 48 in 2019 – survey plan and protocol for consideration by SG-ASAM 2018
of the CCAMLR 2000 survey, that was undertaken in the year 2000. The basis for comparisons will ... , Korea, China and Chile), United Kingdom, Ukraine, Korea and China, and hopefully also other nations that ... consideration by SG-ASAM. Norway has volunteered to co-ordinate the survey with other members dedicating ... personnel to specific tasks. It is requested that members who has already made commitments on ship time ...
Meeting Document : SG-ASAM-18/07 : Author(s): B.A. Krafft, O.A. Bergstad, T. Knutsen, G. Skaret and G. Macauley
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Revised reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2012/13 season
. It seems that larger fish > 140 cm are more damaged than smaller ones, which is consistent with ... relatively higher in 2011 but showed no clear tendencies with the years in SSRU C. Fish in single-hooked and ... the results in 2011/12 season. The possible maximum tagging rate was calculated to be 30.1 fish per ... recaptured in the same SSRU. No set was affected by killer whales in both SSRUs. Author(s): K. Taki, T ...
Meeting Document : WG-FSA-13/34 : Author(s): K. Taki, T. Ichii, T. Iwami and M. Kiyota (Japan)
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Changes in the diet of the South Georgia shag Phalacrocorax georgianus at the South Orkney Islands along four consecutive years
fish populations, the comparison of our results with historical data may be indicating a recovery of G ... Trematomus newnesi. Harpagifer antarcticus, followed by L. nudifrons or T. newnesi, was the most numerous ... and L. nudifrons. In 1997 G. gibberifrons and N. coriiceps were the species that most contributed to ... also for the South Orkney Islands in previous studies. These differences could be due to the use of ...
Meeting Document : WG-EMM-00/8 : Author(s): R. Casaux and A. Ramón (Argentina)
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Report of the 1st and the 2nd stage of research fishing conducted by Russian Federation in SSRU 882A in 2010–2012 (this is a revision of WG-SAM-12/08)
be recommended for exploratory fishing under CCAMLR regulations. Calculation results shows that ... Abstract: In accordance with decision of CCAMLR Scientific Committee in 2010 and in 2011 years ... tagging. Obtained results shows that investigated area is potentially advantageous for fishing and could ... biomass of toothfish in SSRU 88.2 A in significant and makes up from 2611.3 to 3112.3 t, which allows the ...
Meeting Document : WG-FSA-12/15 : Author(s): E.F. Kulish and I.I. Gordeev (Russia)
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The influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within the Australian Fishing Zone, 1991–1995
fishery. In the Australian Fishing Zone (AFZ) seabirds were most likely to be caught on longlines that ... to changes of the priority that fisheries observers placed on the collection of seabird data. The ... effective. The use of these observations in combination with the analyses suggested seabird bycatch rates ... may be lowered by the use of bird lines, bait throwing machines and thawed baits. However, appropriate ...
Meeting Document : WG-FSA-98/32 : Author(s): N. Brothers, R. Gales and T. Reid (Australia)
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Revised assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990–2014
Group also requested that projections be presented to WG-FSA for this assessment that examine the ... in the revised OB_1b model were estimated to be 71 tonnes, which corresponded 43 % of that (163 ... to the 2008 tag data, along with the IUU selectivity modeled as a double normal function. The Working ... killer whales constantly occurs, the CCAMLR yield should be reduced to 22.5 tonnes. Author(s): K. Taki ...
Meeting Document : WG-FSA-15/23 : Author(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Some properties of diagnostics of GLMM model tuning for standardising CPUE indices in the Area 48 using the CCAMLR fishery statistics database
with random effects (GLMM). The analysis of diagnostics of GLMM tuning indicated that the model with ... . However, there were many hauls to be interpreted as “outliers”, i.e. the points from the sample where ... of krill hauls in the CAMLR database for 1986 – 2008. It was shown that extremely high CPUE values ... catches per hour. Such high CPUE values constituted 100 – 600t/hour and more (up to 1000 t/hour). The ...
Meeting Document : WG-EMM-11/44 : Author(s): P. Gasyukov and S. Kasatkina (Russia)
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
for the area around Phase 2's third depletion square. The assumptions of the mark-recapture model were ...
Meeting Document : WG-FSA-96/34 : Author(s): Watters, G.