Search results
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
quantitative winter food studies. However, it is evident from this review that the importance of krill in fish ... diets varies with time and location, and with the suite of prey types available in different regions in ... abundance and community structure of fishes brought about by industrial fishing needs to be considered ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Author(s): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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An examination of latitudinal variation in the growth rates of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
Abstract: Following a finding that a small sample of aged Dissostichus mawsoni from McMurdo Sound ... were insufficient older fish in the southernmost zone to enable a comparison with other areas. Any real ... latitudinal differences in growth rates for relatively sedentary fish are likely to be blurred by migration ...
Meeting Document : WG-FSA-03/30 : Author(s): P.L. Horn (New Zealand)
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Depletion-based stock reduction analysis: a catch-based method for determining sustainable yields for data-poor fish stocks
-Reduction Analysis with Depletion-Corrected Average Catch. Data requirements include estimates of historical ... unknown parameter, which can be estimated given a designated relative depletion level near the end of the ... stock assessments suggests that the method is effective for estimating sustainable yields for data-poor ...
Meeting Document : WG-SAM-11/P2 : Author(s): E.J. Dick and A.D. McCall
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Survey estimates of recruitment of toothfish in Subarea 48.3
for South Georgia. Although it is easy to spot cohorts, the size of individual cohorts can not be ... consistently determined from the survey data. The expected reduction in cohort density with time at a log-scale ... surveys. We conclude that survey-based estimates of recruitment biomass are not reliable input data for ...
Meeting Document : WG-FSA-SAM-04/16 : Author(s): Collins, M., Wakeford, R.C., Moir-Clark, J., Belchier, M., Agnew, D.J.
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A revised assessment of Patagonian toothfish in Subarea 48.4
, whilst D. mawsoni are mainly caught in the south. WG-FSA 2012 concluded that species specific assessments ... , covering the whole of the subarea, would be a more appropriate method for assessing the stocks than the ... . The revised assessment is compared with the previous assessment for this stock. Data deficiencies and ...
Meeting Document : WG-SAM-13/24 : Author(s): R. Scott (United Kingdom)
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Preliminary assessment of Patagonian toothfish in Subarea 48.4
in the north, whilst D. mawsoni are mainly caught in the south. CCAMLR WG-FSA 2012 concluded that ... species specific assessments, covering the whole of the subarea, would be a more appropriate method for ... pattern and revised growth assumptions. The revised assessment is compared with the previous assessment ...
Meeting Document : WG-FSA-13/31 : Author(s): R. Scott and V. Laptikohvsky (United Kingdom)
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Predicting changes in the Antarctic krill Euphausia superba population at South Georgia
nature and consequences of changes in krill population dynamics that accompany l1uctuations in its ... length ill the diet of predators at South Georgia from 1991-1997, allowed predictions to be made about ... with model predictions, in 1998 there was a serial change in krill population structure, low krill ...
Meeting Document : WG-EMM-99/37 : Author(s): K. Reid, K.E. Barlow, J.P. Croxall and R.I. Taylor (UnitedKingdom)
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The case for a Ross Sea marine reserve
Abstract: The Ross Sea continental shelf and slope have a number of characteristics that make it ... .¹ With exceptional biodiversity and evolutionary significance, as well as its potential as a climate ... Ross Sea derives from its relatively pristine state, which will be irrevocably altered by the ...
Meeting Document : CCAMLR-XXX/BG/23 : Author(s): Submitted by ASOC
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A PROPOSED MANAGEMENT PROCEDURE FOR THE TOOTHFISH (Dissostichus eleginoides) RESOURCE IN THE PRINCE EDWARD ISLANDS VICINITY
steepness h is low. These tests also indicate that monitoring of future catch-at-length information would be ... length of the catches made. A specific MP, with its associated control parameter values, is proposed for ...
Meeting Document : WG-SAM-08/11 : Author(s): A. Brandão and D.S. Butterworth (South Africa)
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Preliminary results on the composition and abundance of the krill stock in the southern Bellingshausen Sea (Antarctic, CCAMLR Subarea 88.3)
spatial separation for size groups was observed for krill, with small size groups being more abundant ... for size groups was observed for krill, with small size groups being more abundant in the East Wind Drift ...
Meeting Document : WG-EMM-95/18 : Author(s): Siegel, V.