Résultats de la recherche
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Review of biological parameters for Ross Sea skates
. Differences in length-weight relationships among regions raise doubt about the conspecificity of A. georgiana ... and female A. georgiana and B. cf. eatonii from the Ross Sea are provided. Male and female ... relationships differ significantly for both species. Male A. georgiana attain 50% maturity at 92 cm total length ... and 100–110 cm TL for females. The best available, but unvalidated, growth curve for A. georgiana for ...
Meeting Document : WG-FSA-06/31 : Auteur(s): M.P. Francis (New Zealand)
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Report of the WG-FSA Intersessional Subgroup on Sampling Catches from Longlines
subsampling methods use the hauling completed within a day as a frame, and theoretically cover all fishing ... activity by sampling every day of hauling. Both methods essentially follow a multi-stage cluster sampling ... fish/day, to sampling a set length of each line or number of hours of each day. The principal advantage ... of the time-based method is that it gives a frame that can be monitored easily using a watch, but the ...
Meeting Document : WG-FSA-02/52
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Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area
affects the Antarctic marine ecosystem as a whole. We have assessed variability in krill recruitment and ... . We found a significant positive correlation between krill recruitment in the Antarctic Peninsula area ... ; = 0.57) and 2-year-old krill (r = 0.69) with a level of significance of 5%. In addition, the strength of ... westerlies also had a strong correlation with chlorophyll a (r = 0.63) and sea ice cover with a 1-year time ...
Meeting Document : WG-EMM-99/52 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)
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MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA
Abstract: The South Georgia region supports a high biomass of krill that is the subject to high ... inter-annual variability. The lack of a self-sustaining krill population at South Georgia means that ... understanding the mechanism underlying these observed population characteristics is essential to a successful ... population size structure over the same period from predator diet data, were used with a krill population ...
Meeting Document : WG-EMM-08/48 : Auteur(s): K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)
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The feeding peculiarities of the Antarctic seals in the region of the archipelago of Argentina Islands
Abstract: The detailed analysis of a food of the Antarctic species of seals around Argentine ... makes 97,2 % to a diet of fur seals (Arctocephalus gazella) and 90 % to a diet crabeater seal (Lobodon ... counted within archipelago, the most numerous is the crabeater seal and a southern fur seal- these species ... established, that the leopard seal’s fodder diet is similar, to a diet of a specie around eastern Antarctic ...
Meeting Document : WG-EMM-12/P01 : Auteur(s): I. Dykyy
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Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010
. coriiceps at Potter Cove, South Shetland Islands, over a 28-yr period, 1983-2010. N. rossii abundance ... from 1986, exhibited a similar pattern, showing a decrease until 1991-92. After a period of relative ... stability (1992-1994), a sharp increase in length and a continued decline in relative abundance indicated ... and suggest that a further two decades will lapse before these stocks recover. Using the South ...
Meeting Document : WG-FSA-12/P01 : Auteur(s): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a
coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... according to CCAMLR decision rules. This paper aims to present a research plan for 2014/2015 that takes into ... improve the estimation of current biomass. An update of the assessment of Dissostichus eleginoides using a ... CASAL model and a simple Petersen biomass estimate derived from tagging data are presented. The CASAL ...
Meeting Document : WG-SAM-14/17 : Auteur(s): Delegation of France
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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
involved in any redevelopment of a commercial krill (Euphausia superba) fishery in CCAMLR Divisions 58.4.1 ... has a high likelihood of achieving CCAMLR’s objectives in this region. This paper outlines a ... measures that are relevant to Divisions 58.4.1 and 58.4.2 sufficiently mitigate the risk of a krill fishery ... Divisions 58.4.1 and 58.4.2, suggests a distribution of catch across the four subdivisions. This risk ...
Meeting Document : WG-EMM-18/37 : Auteur(s): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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e-cc-vii-aH.pdf
... Commission (paragraph 99), the Commission established a Standing Committee on Observation and Inspection ... and inspectors referred to in Article XXIV of the Convention. (a) Designated observers and ... until July 1 of the following year. II. The Commission shall maintain a register of certified ... observers and inspectors designated by Members. (a) The Commission shall communicate the register of
application/pdf attached to:SCOI-88Meeting Report : SCOI-88
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Report on the activities of the Scientific Committee on Antarctic Research (SCAR) 2006/07
directly to CCAMLR or are of potential interest to CCAMLR. This includes a report on progress with the new ... Workshop with the provision of data and expertise. The SCAR/SCOR Oceanography Expert Group convened a ... meeting to develop the Southern Ocean Observing System. SCAR commissioned a report of the State of the ... Antarctic and Southern Ocean Climate Systems. SCAR is also a co-sponsor of both Southern Ocean GLOBEC and a ...
Meeting Document : CCAMLR-XXVI/BG/36 : Auteur(s): SCAR Observer to CCAMLR(G. Hosie, Australia)