Resultados de la búsqueda
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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 : Autor(es): K. Reid, S. Hill and T. Diniz (United Kingdom)
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Interannual variability of polynya extent in the Antarctic Ocean
and converted into the yearly mean. The time series of the yearly mean in the whole Antarctic Ocean ... are trending like a pulse wave. In the whole Antarctic Ocean, peak years of polynyas extent are in the ... variability of polynya extent in the Antarctic Ocean Approval: Approved ... ), coastal polynya and open ocean polynya, in the Southern Ocean. Polynya accelerates oceanic and atmospheric ...
Meeting Document : WG-EMM-01/34 : Autor(es): M. Naganobu and K. Segawa (Japan)
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Assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005-2014
m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... ELAN_1 model reflected a large number of recaptures of the tags released concentrated in the western area ... of research block. This is why the removal of 2012 tag release data boosted the MPD estimate of B0 in ... ELAN_2 model. The selectivity of the shallow fishery is poorly estimated in MCMC runs for ELAN_1 model ...
Meeting Document : WG-SAM-15/24 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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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 : Autor(es): R.L. O’Driscoll (New Zealand)
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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 : Autor(es): M.E. Livingston and P. Grimes (New Zealand)
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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 : Autor(es): Delegation of the 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 : Autor(es): 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 : Autor(es): Delegation of Japan
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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 : Autor(es): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (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 : Autor(es): D.J. McCafferty, I.L. Boyd, T.R. Walker and R.I. Taylor (United Kingdom)