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INDICATIVE ESTIMATES OF BIOMASS AND YIELD OF WHITSON’S GRENADIER (M. WHITSONI) ON THE CONTINENTAL SLOPE OF THE ROSS SEA IN SUBAREAS 88.1 AND 88.2
Abstract: Catch limits currently in place for macrourids in Subareas 88.1 and 88.2 are defined as ... being equal to 16% of the catch limit of Dissostichusspp. in these subareas. The 16% was based on the ... ratio of the by-catch limit for macrourids to the catch limit for Dissostichus spp. in Division 58.5.2 ... in 2002/03 (CCAMLR-XXI, para 11.53). The bycatch limit for macrourids in Division 58.5.2 had in turn ...
Meeting Document : WG-FSA-08/32 : Автор(ы): S.M. Hanchet, D. Fu and A. Dunn (New Zealand)
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Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-Antarctic Crozet Islands
of the fish diet, constituting together 32 % by mass. The three main species of myctophids eaten in ... summer by king penguins were either very rare in winter (Electrona carlsbergi) or accounted for a smaller ... other myctophids, which are rarely consumed in summer, contributed 24% of the diet by mass in winter ... Electrona subaspera = 1.0%). The greater diversity of prey in winter suggests a more opportunistic feeding ...
Meeting Document : WG-EMM-97/09 : Автор(ы): Cherel, Y., Ridoux, V., Rodhouse, P.G.
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
observer data. The stock size estimates for research blocks were revised following advice in the last WG ... -SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each block in such a way ... that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of coefficient ... sizes turned out to be larger in many blocks and smaller in a few blocks over the data poor-fisheries ...
Meeting Document : WG-FSA-13/38 : Автор(ы): Delegation of Japan
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–13
model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs ... selectivity for the fishery in the North. We recommend model R2 be used to provide catch limits for the stock ... biomass, in particular the data from the 2012 tagged fish. We expect this is due to higher catches in ... for recapture) than the other slope SSRUs 88.1H and I. Fish released or recaptured in SSRU K have ...
Meeting Document : WG-FSA-13/51 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Matlab code for calculating krill biomass in a survey area
Abstract: In 2010, CCAMLR tasked the Subgroup on Acoustic Survey and Analysis Methods (SG-ASAM ... ) to recalculate the catch limit for Antarctic krill in the Scotia Sea based on updated acoustic ... algorithms developed since the first calculation in 2000. Subsequent to the 2010 SG-ASAM, code used to obtain ... collection of code has revealed inconsistencies and omissions in the documentation, complicating attempts by ...
Meeting Document : SG-ASAM-16/03 : Автор(ы): A. Cossio, J. Renfree and C. Reiss
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Results of a CCAMLR-sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ... the southern Ross Sea using standardised gear in a standardised manner; and (ii) To carry out ... experimental depth-stratified fishing in 400–600 m depth adjacent to the survey boundaries to establish the ... carry out a longline survey of pre-recruit toothfish from a commercial fishing vessel in Ross Sea using ...
Meeting Document : WG-FSA-12/41 : Автор(ы): S.M. Hanchet, S. Mormede, S. Parker, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
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Stable isotope analysis of tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni) in the Ross and Amundsen Sea regions
Abstract: Stable isotopes of carbon and nitrogen (δ 15 N and δ 13 C) in Antarctic toothfish ... (Dissostichus mawsoni) muscle were measured to study the trophic connections of Antarctic toothfish in the Ross ... lipid in muscle on δ 13 C in a way that did not compromise the accuracy of δ 15 N measurements. We found ... considerable variability in δ 15 N and δ 13 C of toothfish that were not explained by fish length, sex ...
Meeting Document : WG-EMM-14/50 : Автор(ы): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)
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Assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990-2014
assessments of Dissostichus eleginoides in the research block 58.4.4b_1 following the recommendation of the WG ... observations in 2008 from OB_1a model (OB_1b model), and 3) modified OB_1b model as fix of fishing selectivity ... estimates of OB_1b model (OB_1b_noage model). The fits to CPUE in 2008 and MPD profiles for tags in the same ... year in OB_1a model were spurious. This suggests that Shinsei-maru No. 3 was learning operation in its ...
Meeting Document : WG-SAM-15/25 : Автор(ы): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Biomass of Antarctic krill around South Shetland using 2-dB difference method in April 2016
Abstract: Antarctic Krill plays an important role in Antarctic ecosystems as the medium that ... connects phytoplankton to penguins, seals, and whales. It is also in the limelight as an important protein ... it is surrounded by Darke Passage in North, Weddle Sea in East, and Bransfield Strait in South ... regulation that limits Krill catch amount using fishing survey and acoustic assessment data in order to ...
Meeting Document : WG-EMM-16/60 : Автор(ы): Delegation of the Republic of Korea
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Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel
Abstract: The Antarctic krill fisheries have evolved to operate in ever more concentrated ... geographical areas of predictable high krill densities, and knowledge about trends and variability in krill ... fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ... studied using acoustic data from the Chinese krill fishing vessel ‘Fu Rong Hai’ operating in the ...
Meeting Document : WG-EMM-17/40 : Автор(ы): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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