Résultats de la recherche
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Size at maturity and histological procedures explored to determine spawning activity of female Dissostichus mawsoni from samples collected from the Ross Sea in January 2004, December 2004 and January 2005
the 2003/04 and 2004/05 commercial fishing seasons in the Ross Sea to improve estimates of size of ... development visible in histological sections of the 2003/04 samples. Using this methodology, it is ... size at maturity. The calculated Lm50 of 113.0 cm was very close to the value of 115.2 cm estimated in ... spawning activity that may also be useful in ascertaining the maturity ogive of D. mawsoni in the previous ...
Meeting Document : WG-FSA-05/63 : Auteur(s): M.E. Livingston and P. Grimes (New Zealand)
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Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management
fisheries. Data on the frequency and size structure of C. gunnari in the diet of Antarctic fur seals ... 1993, 1996, 1999 and 2001. A recruitment index based on the contribution by mass of the 1+ age-class in ... the diet of gentoo penguins indicated a higher degree of variability in recruitment than in considered ... in the diet of upper trophic level predators at South Georgia: implications for fisheries management ...
Meeting Document : WG-FSA-03/74 : Auteur(s): K. Reid, S. Hill and T. Diniz (United Kingdom)
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 1996 winter and 1996/97 pup-rearing season
entangling materials, with the abundance of string and fishing net reversed from most previous years. In ... level of entanglements in summer is encouraging. The increase in winter records, however, is ... ): Delegation of the United Kingdom Title: Entanglement of Antarctic fur seals (Arctocephalus gazella) in man ... Abstract: The results of the survey of entanglement of Antarctic fur seals at Bird Island, South ...
Meeting Document : SC-CAMLR-XVI/BG/06 : Auteur(s): Delegation of the United Kingdom
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Descriptive analysis of mesopelagic backscatter from acoustic data collected in the Ross Sea
quantify spatial and vertical distribution of acoustic backscatter in the upper 1000 m of the water column ... . There were clear spatial patterns in the amount and type of mesopelagic backscatter observed. There was ... much more backscatter in the upper 1000 m and a wider variety of mark types north of 67° S. Common mark ... shelf edge. In general, the amount of backscatter observed in the Ross Sea was much lower than that ...
Meeting Document : WG-EMM-06/11 : Auteur(s): R.L. O’Driscoll (New Zealand)
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Foraging response of Antarctic fur seals to changes in the marine environment
1964 d at sea. The frequencies of krill, fish and squid in the diet were estimated from prey items ... physical factors were also important in explaining the seasonal pattern of fur seal foraging behaviour ... response of Antarctic fur seals to changes in the marine environment Approval: Approved ... Abstract: This study examined the relative contribution of environmental variation and the ...
Meeting Document : WG-EMM-99/35 : Auteur(s): D.J. McCafferty, I.L. Boyd, T.R. Walker and R.I. Taylor (United Kingdom)
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
Abstract: The current season (2015/16) is the first one of the second three-season research in ... estimated following the procedure recommended at the WG-FSA in 2013 in order to maximize the expectation of ... of Japan Title: Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.1 was made ...
Meeting Document : WG-SAM-16/04 : Auteur(s): Delegation of Japan
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2015/16) is the first one of the second three-season research in ... estimated following the procedure recommended at the WG-FSA in 2013 in order to maximize the expectation of ... of Japan Title: Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.2 was made ...
Meeting Document : WG-SAM-16/05 : Auteur(s): Delegation of Japan
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
present in 89 % of samples and were the main prey (> 50 % by mass) in 10 years of the study. Antarctic ... frequently recorded species, in 51 % and 33 % of samples respectively. The energy or mass of krill in the ... , H.J. Peat and P.N. Trathan Title: Long term variability in the diet and reproductive performance of ... krill Euphausia superba were present in 85 % of all diet samples. Fish were present in 79 % of samples ...
Meeting Document : WG-EMM-17/P02 : Auteur(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment
purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... Zealand) Title: A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and ... -98 to nearly 1800 t in 2002-03. Although some Patagonian toothfish (D. eleginoides) are taken in the ... 90% D. mawsoni) have been tagged and released in the area, from vessels operating in the exploratory ...
Meeting Document : WG-FSA-SAM 03/10 : Auteur(s): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)
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Revised proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea
survey was presented to the 2011 meeting of WG-SAM. In this paper we provide an update of the preliminary ... for the research proposal for a longline survey of pre-recruit toothfish in the southern Ross Sea ... location, the number of sets in each stratum required to achieve target c.v.s, and associated sampling ... -recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in the southern Ross Sea using ...
Meeting Document : WG-FSA-11/47 : Auteur(s): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)