Search results
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Re-analysis of CPUE in both species of toothfish in 48.6 area
Abstract: The present report re-analyses data regarding CPUE for both species of toothfish in ... northern area of 48.6 (SSRU 48.6A, 48.6G). This report is a re-analysis of the CPUE time series proposed in ... previous work (SAM 13/29) which includes all those comments and suggestions made in the last SAM meeting ... Patagonian toothfish presented a high proportion with sets in which both species are present, and thus, an ...
Meeting Document : WG-FSA-13/63 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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Phytoplankton standing stocks in relation to krill in Antarctic waters
Abstract: Investigations on krill trawl operations in the southern ocean were accompanied by the ... waters with temperature ranging from 0 to 3° C and high nutrient content. Phytoplankton cell counts in ... fluctuations in phytoplankton and zooplankton standing stocks followed a similar trend. Marked drop in ... phytoplankton and zooplankton in the region of krill swarm however showed active feeding by the latter on these ...
Meeting Document : WG-EMM-98/34 : Author(s): X.N. Verlecar, R. Vijayakumar, F. Saldhana and L. Martins (India)
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Proposal for a longline survey on toothfish in Statistical Subarea 48.6 in 2017/18
Abstract: Norway proposes a plan to investigate the toothfish populations in the Statistical ... Subarea 48.6 in 2017/18 using standardised longline gear, established tagging techniques, and pop-up tags ... mapping, and the study will adhere to principles and guidance expressed in CM 41-01. In future years the ... that in 2018 a new Norwegian vessel will be available, equipped with advanced technology for sampling ...
Meeting Document : WG-SAM-17/06 : Author(s): Delegation of Norway
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Assessment of yield and status of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean: implications for managing by-catch in CCAMLR fisheries
data were taken from a trawl survey conducted at Macquarie Island in 1999. Where parameters were not ... elsewhere in the world. The trawl survey data was used to calculate estimates of biomass and density for the ... catch rates of M. carinatus in longline fisheries targeting Dissostichus eleginoides. Applying the ... critical y to the mean density observed in the survey results gives a catch rate of 5.81 kg/km2 which ...
Meeting Document : WG-FSA-99/69 : Author(s): E.M. van Wijk, A.J. Constable, R. Williams and T. Lamb (Australia)
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Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2019
) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the ... selected station points. However, only 5 of 18 stations were sampled in Gunnari Ridge since the catch limit ... for Champsocephalus gunnari (mackerel icefish) in Division 58.5.2 was reached prior to the completion ... higher than last year’s catch even though less than a third of the stations were completed in Gunnari ...
Meeting Document : WG-FSA-2019/03 : Author(s): G.B. Nowara, T.D. Lamb and P. Ziegler
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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
Abstract: Results of Russian krill fishery in the area 48.2 in the season of 2009 (March ... – beginning of June) on the cruise data of trawler “ Maxim Starostin ” are discussed in the paper. The vessel ... hydrometeorological and ice conditions are given in the paper. Author(s): S.Yu. Gulyugin, V.E. Polonskiy and S.M ... . Kasatkina (Russia) Title: Results of krill fishery in Subarea 48.2 in the 2009 season based on data of the ...
Meeting Document : WG-EMM-10/08 : Author(s): S.Yu. Gulyugin, V.E. Polonskiy and S.M. Kasatkina (Russia)
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VARIATION IN DEMERSAL FISH SPECIES RICHNESS IN THE OCEANS SURROUNDING NEW ZEALAND: AN ANALYSIS USING BOOSTED REGRESSION TREES
‘stochastic gradient boosting’). Depth was the single most important environmental predictor of variation in ... moderately high richness between 400 and 1100 m. Richness was higher both in waters with high surface ... concentrations of chlorophyll a and in zones of mixing of water bodies of contrasting origins. Local variation in ... temperature was also important, with lower richness occurring in waters that were cooler than expected given ...
Meeting Document : WS-VME-09/P04 : Author(s): Leathwick, J.R., Elith, J., Taylor, P., Francis, M.P., Hastie, T.
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Results of scientific observation in Antarctic krill fishery in 2010/11: II. analysis of variability of krill size and fish by-catch
) incorporated in a state-space model that separates biological process error from fishery process error and ... observation error. The parameters of the model were estimated by the Markov chain Monte Carlo (MCMC) method in ... krill length model, some parameters did not converge well in the bycatch fish model. The interaction ... is no clear difference among cruises within a vessel. The uncertainty in parameter estimation is ...
Meeting Document : WG-EMM-12/67 : Author(s): T. Okuda and M. Kiyota (Japan)
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Progress report on the Korean exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2016/17 season
Abstract: The research fishing was conducted in Divisions 58.4.1 and 58.4.2 from 12 January 2017 ... to 14 March 2017 in 2016/17 fishing season. One additional national observer was on board to perform ... additionally satellite archival tags were attached to 5 individuals of D. mawsoni. In Divisions 58.4.1 and ... encountered unknown fishing gears during research fishing in SSRU G and E of the Division 58.4.1 and reported ...
Meeting Document : WG-SAM-17/27 : Author(s): S.-G. Choi, J. Lee, J. Lee and D. An
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Geographical differences in the condition, reproductive development, sex ratio and length distribution in Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Statistical Subarea 88.1)
April. Results of this study indicate measurable differences in a number of indices from toothfish found ... the population was more advanced in reproductive development, were in poorer condition, showed a ... consistent peak over all seasons in comparison with the southern group in which the distribution was ... multimodal. Author(s): J.M. Fenaughty (New Zealand) Title: Geographical differences in the condition ...
Meeting Document : WG-FSA-04/28 Rev. 1 : Author(s): J.M. Fenaughty (New Zealand)