Résultats de la recherche
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Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
productivity of the stock assumed in the stock assessment. 3) Biological characteristics of the northern ... key gaps in the knowledge of the life cycle of Antarctic toothfish in the Ross Sea by collecting ... biological samples from a range of locations in the northern regions of Subarea 88.1 and 88.2 and begin in ... spawning dynamics in the southern area of the South Pacific Regional Fisheries Management Organisation ...
Meeting Document : WG-FSA-18/40 : Auteur(s): Delegation of New Zealand
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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 ... standardised gear in a standardised manner. Based on a total of 45 sets in the three core strata (A12-C12) the ... future surveys in this area should focus on depths of 500–900 m. The survey also demonstrated the ... , 2001, and 2004. The results of this analysis suggest that there has been no significant change in catch ...
Meeting Document : WG-FSA-12/41 : Auteur(s): S.M. Hanchet, S. Mormede, S. Parker, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
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A comparison of densities and length distribution of the Champsocephalus gunnari stock in Subarea 48.3 between years 1994 and 1995
Abstract: Mean densities and length structure of Champsocephalus gunnari obttained in the 1994 ... monitoring the stock. A relative stability was found in the components of the variance of the mean density ... design. Forty five stations in the first cruise and 48 in the second were analyzed. Of these, 51 pairs of ... depth strata in the South Georgia Islands shelf, while density remained stable at Shag Rocks. The fit of ...
Meeting Document : WG-FSA-95/34 : Auteur(s): Marschoff, E., Calcagno, J., Gonzalez, B.
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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
(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 ... level; (2) δ 15 N values of toothfish on the Ross Sea slope were lower (~0.8‰ between medians) than in ... and 2014. This study found that δ 13 C values of toothfish in the Amundsen Sea region were ...
Meeting Document : WG-EMM-14/50 : Auteur(s): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)
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ASSESSMENT OF PATAGONIAN TOOTHFISH POPULATION IN THE NORTH OF SUBAREA 48.4 USING DATA FROM A FOUR-YEAR TAGGING EXPERIMENT
Abstract: 1. The bycatch TAC of 12 tonnes of macrourids was reached in 2008/09 triggering the ... in 2008/09, slightly under the target of 375 for the full 75 tonnes of catch; 3. There were 29 D ... . eleginoides tag returns in 2008/09, bringing the total from all seasons up to 54 tag recaptures; 4. A total of ... . Evidence of gonad development in 2008/09 suggests that D. eleginoides may spawn in the North of 48.4 in ...
Meeting Document : WG-FSA-09/17 : Auteur(s): J. Roberts and D.J. Agnew (United Kingdom)
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995
Abstract: About 1300 stomach contents of the icefish Champsocepha1us gunnari caught in the ... Subarea 48.3 in February 1995, were analyzed using the frequency of occurrence (%) method. Krill ... to be similar to that observed in the E. Holmberg survey in February/March 1994: common levels of ... somewhat below the historical years of high abundance, but above than in 1994. Author(s): Marschoff, E ...
Meeting Document : WG-FSA-95/36 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during 1990/91 austral summer
; oceanic, slope frontal, neritic and nearshore zones. The mean density of krill was low in the oceanic zone ... females were exceedingly abundant in the slope frontal zone with the mean density of 23.9 g/m2 (411,000t ... heterogeneities in abundance and maturity of krill were observed. The survey region was divided into four zones ... (95% confidence limit), of which 1.22 ± 0.42 million t was concentrated in the fishing grounds (" ...
Meeting Document : WG-KRILL-92/26 : Auteur(s): T. Ichii, H. Ishii and M. Naganobu (Japan)
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Analysis of maturity of Antarctic toothfish in the Amundsen Sea
(57.1%) in 2006 and IV stages of maturity (83.3 %) in 2007 and testes – the IV stage (55%) in 2007. In ... 2007 the oocytes in the ovaries of 16.7% investigated fish has reached the completed maturation and ... Abstract: The results of the comparative histological analysis of the Antarctic toothfish ... (Dissostichus mawsoni) reproductive system, caught by the longliner in the Amundsen Sea in February 2006 and ...
Meeting Document : WG-FSA-10/50 : Auteur(s): S.V. Piyanova and A.F. Petrov (Russia)
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Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers
identity as well the individual identity of southern right whales distributed in summer in the Antarctic ... the presence of a Y-chromosome specific locus. The mtDNA analysis suggested that whales in the ... Antarctic Indian sector in summer are closely related to the Australian calving ground. Eight incidences of ... that some of the assumptions used in the genetic ‘mark-recapture’ method should be further considered ...
Meeting Document : WG-EMM-18/18 : Auteur(s): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka
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Plan of research program of the Russian Federation in Subarea 48.5
, fishery in subarea 48.5 is closed based on absent stock assessment. The main objective of the present ... Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... Subareas. Stock assessment of this area should be calculated basing on the newest and adequate data ... . Despite the difficult ice conditions the Weddell Sea is the largest enclosed near-continental sea of the ...
Meeting Document : WG-SAM-15/18 : Auteur(s): Delegation of the Russian Federation