Resultados de la búsqueda
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Geographical aspects of utilising resources of krill (Euphausia superba)
adjacent waters with an emphasis on subregions lying beyond the current fishing grounds of the Scotia Sea ... Abstract: This paper presents data on the distribution of E. superba in the Atlantic sector and ... . In a number of subregions on the periphery of the Weddell Gyre (both to the north and south), as well ... environment. The commercial exploitation of krill aggregations in open-ocean areas should occur alongside an ...
Meeting Document : WG-EMM-96/05 : Autor(es): Makarov, R.R.
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Preliminary assessment of the South Georgia ray populations
accuracy and duration of CPUE data and the results of an ongoing mark-recapture experiment for rays at ... implemented in a Bayesian framework. Catch and CPUE data were reconstructed for the time series 1985 – 2006 ... survivorship has been found to decrease as depth of fishing increases. Our analysis is concentrated on catches ...
Meeting Document : WG-SAM-07/11 : Autor(es): D.J. Agnew, R. Mitchell, T. Carruthers, J. Roberts, R. Hillary and J. Pearce (United Kingdom)
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A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg Using Scales and Otoliths
were interpreted 60% of scale readings and 30% separate and simultaneous interpretations. Estimates of ... derived from scales are approximately 30% greater than predictions utilising age data derived from ...
Meeting Document : WG-FSA-89/13 : Autor(es): R. Coggan (United Kingdom), K. Skora (Poland), A. Murray and M. White (United Kingdom)
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Report of the 1st and the 2nd stage of research fishing conducted by Russian Federation in SSRU 882A in 2010–2012 (this is a revision of WG-SAM-12/08)
Abstract: In accordance with decision of CCAMLR Scientific Committee in 2010 and in 2011 years ... tagging. Obtained results shows that investigated area is potentially advantageous for fishing and could ... be recommended for exploratory fishing under CCAMLR regulations. Calculation results shows that ... removal of approximately 280 tons (at 10% operating level) each year without negative effect to the ...
Meeting Document : WG-FSA-12/15 : Autor(es): E.F. Kulish and I.I. Gordeev (Russia)
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The 2013 annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2)
(HIMI) was completed during April of 2013. The catches of D. eleginoides for 2013 were half that of 2012 ... invertebrates. Catches of individual invertebrate taxa were generally much lower than in previous years. Lengths ... and biological measurements were taken for 13,000 fish, 276 pairs of otoliths collected and 179 ... . This year there was a large abundance of jellyfish (Cnidaria) which formed about half of the catch of ...
Meeting Document : WG-FSA-13/21 : Autor(es): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Review of depredation mitigation methods applied within the CCAMLR Statistical Area
extent sperm whales cause greatest disruption to longline fishing activities for toothfish (Dissostichus ... sp.). Several measures have been developed and tested over the years to mitigate depredation by ... measures employed in the CCAMLR management area and their potential for disruption both in target and non ...
Meeting Document : WG-SAM-15/28 : Autor(es): R. Faulkner, N. Edmonds and M. Soeffker (United Kingdom)
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Climate change and precautionary spatial protection: seasonal sea ice
, the implications for biological systems remain poorly understood. Investigating how marine species ... currently covered by seasonal sea ice (as of 2011) could be considered for creation as restricted use Marine ... position of the ice edge may move further south in future years. Where implemented, these restrictions ... account the need to maintain ecological relationships including for dependent species. Author(s): P.N ...
Meeting Document : WS-MPA-11/18 : Autor(es): P.N. Trathan and S.M. Grant (UK)
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Summary of a three year mark-recapture experiment to estimate population size of Antarctic toothfish (Dissostichus mawsoni) in Southern Area of Statistical Subarea 48.4
indicated that mean estimates of vulnerable biomass for D. mawsoni were similar across recapture years 2010 ... the aims of providing the data required for assessments of the population structure, size, movement ... mawsoni) in South of Statistical Subarea 48.4. This paper presents the results for D. mawsoni. Fishing ... Abstract: A three-year tagging experiment was initiated by the UK in 2008/09 fishing season with ...
Meeting Document : WG-FSA-11/31 Rev. 2 : Autor(es): R.C. Wakeford, J. Roberts and R.E. Mitchell (United Kingdom)
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Exploring variability in the locations used by the krill fishery in Area 48 in relation to intra- and inter-annual variability in seasonal sea ice
their behaviour, targeting fixed geographic locations in most years. In contrast, in Subarea 48.1 ... , fishing locations show considerable variability between years. In Subarea 48.2 ice cover tends to increase ... location in Subarea 48.1 has shifted in recent years with most catch being taken south of the South ... Shetland Islands since 2008/09 in contrast to earlier years when the mean catch location was always to the ...
Meeting Document : WG-EMM-14/11 : Autor(es): J. Silk, S.L. Hill and P.N. Trathan (United Kingdom)
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Mapping trends in activity of illegal, unreported and unregulated (IUU) fishing in the CAMLR Convention Area
to provide an overview of the potential spatial and temporal distribution of recent IUU activity in ... based on sightings data alone provides a restricted view these activities. This combined analysis also ... Sector on Ob, Lena, Elan and BANZARE banks as well as on the boundary of the Kerguelen and Heard Island ... between an apparent decrease in IUU catch and a decrease in surveillance effort that results in fewer ...
Meeting Document : CCAMLR-XXXII/BG/09 Rev. 1 : Autor(es): Secretariat