Search results
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Alternative assessment methods for toothfish at South Georgia
first is that the CPUE in the early 1990s did not decline as would be expected as the resource was ... would be predicted by the model. Thirdly, all models predict a continuing decline, not the increase in ... initial lack of early decline, the abrupt decline between 1995 and 1996 and the subsequent increase in ... biomass in 2002 was between 78,000 and 114,000 t. Author(s): Kirkwood, G., Payne, A., Agnew, D. Title ...
Meeting Document : WG-FSA-SAM-04/17 : Author(s): Kirkwood, G., Payne, A., Agnew, D.
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Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
levels of confidence in the estimates of abundance for all but the youngest year class. It is recommended ... management procedure for D.eleginoides in Division 58.5.2 in order to determine the potential implications ... in the context of the elements of the current monitoring and assessment methods is outlined. Author(s ...
Meeting Document : WG-FSA-SAM-04/19 : Author(s): Candy, S., Constable, A.J., Davies, C.R.
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Quantifying the escape mortality of trawl caught Antarctic krill (Euphausia superba)
fishing gear. The methods for determining fishing mortality in krill are still poorly developed. We used a ... covered codend sampling technique followed by onboard observations made in holding tanks to monitor ... mortality of krill escaping the trawl nets in our study was 4.4 ± 4.4 %, suggesting that krill are fairly ... tolerant of the capture-and-escape process in trawls. Author(s): B.A. Krafft, L.A. Krag, A. Engås, S ...
Meeting Document : WG-EMM-16/04 : Author(s): B.A. Krafft, L.A. Krag, A. Engås, S. Nordrum, I. Bruheim and B. Herrmann
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
aggregations in the Elephant Island peripheries and south of South Shetland Islands were higher than those in ... the west of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west ... of the South Shetland Islands (64.5) was higher than that in the south (35.9) and the Elephant Island ...
Meeting Document : SG-ASAM-17/04 : Author(s): S.-G. Choi, K. Lee and D. An
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e-sc-vi-a6.pdf
... Group on the Long-Term Program of Work for the Scientific Committee met on 25 October 1987 in ... association with the Sixth Meeting of the CCAMLR Scientific Committee in Hobart, Australia. 2. At its first ... circulated in advance and outlined two major tasks to be addressed by the Group: improving the level of co ... proposed that the level of co-ordination of various national scientific programs might be improved if, in
application/pdf attached to:WG-LTP-87
Meeting Report : WG-LTP-87
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Developing conceptual models of elements of the Antarctic marine ecosystem: Adélie penguins
Abstract: In this paper we present a simple generalised conceptual life history model of Adélie ... history categories based on an individual penguins reproductive potential in any given year, their past ... Adélie populations and also other penguin species, details in relation to parameter estimation and ...
Meeting Document : WG-EMM-04/53 : Author(s): L.M. Emmerson, J. Clarke, M. Tierney and L. Irvine (Australia)
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Conserving seabirds competing with fisheries for food – observations from southern Africa and Marion Island
southern Africa’s seabirds in management of pelagic fish stocks. It also considers moves towards ... establishing target populations for seabirds in South Africa, especially those of conservation concern. It ... describes anomalous breeding by several species of seabird at Marion Island in 1997. These are assumed to ...
Meeting Document : WG-EMM-02/26 : Author(s): R.J.M. Crawford, C.M. Duncombe Rae and D.C. Nel (South Africa)
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Antarctic Climate Change and the Environment – 2011 update
was a first step in compiling a comprehensive assessment of scientific information on the climate ... system and ecosystem responses to change in the Antarctic and Southern Ocean region. The present paper ... , developed by the new SCAR ACCE Expert Group, highlights some recent advances in our knowledge of Antarctic ...
Meeting Document : CCAMLR-XXX/BG/14 : Author(s): Submitted by SCAR
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Data on juvenile fish surveys within South Georgia
Abstract: Data on 6 juvenile fish surveys within South Georgia Subarea have been analysed in the ... paper. There has been revealed that the most abundant species in the catches by juvenile fish trawl were ... -composition and distribution in relation to space and depth have been given. Author(s): Frolkina, Z.A. Title ...
Meeting Document : WG-FSA-96/58 : Author(s): Frolkina, Z.A.
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Beach debris survey - Main Bay, Bird Island South Georgia 1992/93
(14%) reduction in overall debris levels, comprising a 12% increase and 25% decrease in summer and ... those used in the local longline fishery as indicated by sections of longline washed ashore. Packaging ...
Meeting Document : CCAMLR-XIII/BG/03 : Author(s): Delegation of United Kingdom