Search results
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A TIME FOR ACTION IN THE MANAGEMENT OF ANTARCTIC KRILL FISHERIES
address key scientific uncertainties at the SSMU level in Area 48, and the consideration of feedback ... the ecosystem-based management of the krill fishery, including the adoption of a conservation measure ... that ensures systematic scientific observer coverage, the development of a coordinated research plan to ... precautionary measures to prevent concentration of catches in coastal areas as the fishery approaches the ...
Meeting Document : CCAMLR-XXVII/BG/24 : Author(s): Submitted by ASOC
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Density and geographical distribution of krill larvae on the Weddell – Scotia Confluence region during summer 2011
values at a fixed grid of points. Significance of the differences was established using a binomial test ... Abstract: The analysis of euphausiid larvae collected during january 2011 in the Weddell Scotia ... Confluence region show a strong decrease in the abundance of Euphausia superba larvae and an increase in ... associations of the different larvae and especies correspond to the available information. The densities ...
Meeting Document : WG-EMM-16/51 : Author(s): E. Rombolá, C. Franzosi, G. Tossonotto, V. Alder and E. Marschoff
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Choice of a procedure for deciding closure of CCAMLR fisheries: a simulation model
Secretariat of CCAMLR, as described in Conservation Measures, have been difficult to implement because of the ... histories are simulated and the performance of four Models for making closure decisions is investigated ... under a variety of circumstances. The Model described in the existing Conservation Measures is shown to ... have a high probability of allowing large over- or under-shoots of the TAC. The most successful model ...
Meeting Document : CCAMLR-X/BG/09 : Author(s): Secretariat
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Estimating prey consumption of the non-breeder component of an Adélie penguin population
recorded at the breeding colonies. However, recent work suggests that the size of the non-breeder component ... Abstract: Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... Southern Ocean. Previous assessments of prey consumption for seabirds have focussed on breeders using data ... of an Adélie penguin population can be substantial compared with the size of the breeder population ...
Meeting Document : WG-EMM-17/12 : Author(s): L. Emmerson and C. Southwell
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Patterns in the diet of mackerel icefish (Champsocephalus gunnari) on the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3)
Abstract: The diet of the mackerel icefish was investigated from stomach contents analysis of ... fish caught in research trawls at South Georgia and Shag Rocks in January 2004. The results are ... ), the pelagic amphipod (Themisto gaudichaudi) and mysids. The diet differed between the age classes of ... Kingdom) Title: Patterns in the diet of mackerel icefish (Champsocephalus gunnari) on the South Georgia ...
Meeting Document : WG-FSA-04/44 : Author(s): M.A. Collins, R. Mitchell, G. Tarling and M. Belchier (United Kingdom)
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Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
precautionary catch limit of krill for Area 48 into the small-scale management units (SSMU) adopted at CCAMLR ... Abstract: With the intent of stimulating discussion, we present four options for subdividing the ... each SSMU; the second is proportional to the estimated standing stock of krill in each SSMU; and the ... allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea ...
Meeting Document : WG-EMM-03/36 : Author(s): R.P. Hewitt, G. Watters (USA) and P.N. Trathan (United Kingdom)
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CPUEs and body length of Antarctic krill during the 1999/2000 season in Area 48
. Trawling positions, CPUEs and body length of Antarctic krill during the period is described. The krill ... observer undertaken at the same time, and they resulted in good agreements. The discussion was extended to ... the possibility of intra-annual variability of two krill stocks (Antarctic Peninsula and Weddell Sea ... stocks). Author(s): S. Kawaguchi and M. Naganobu (Japan) Title: CPUEs and body length of Antarctic ...
Meeting Document : WG-EMM-01/36 : Author(s): S. Kawaguchi and M. Naganobu (Japan)
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Application of the bootstrap-method in assessment of target strength regression parameters on the basis of in situ measurements
(PDFs) of fish length and target strength at 38 kHz and truncated PDFs are presented. We reveal that it ... Abstract: Target strength (TS) as a function of fish length (L) must be known to estimate fish ... characterizing the uncertainty of its parameters. We show that the bootstrap–method is a highly efficient method ... of estimating the parameters of TS-length function and emphasize that calculation results depend on ...
Meeting Document : WG-FSA-SAM-04/09 : Author(s): P.S. Gasyukov and S.M. Kasatkina (Russia)
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Patagonian toothfish maturity in fishing area 48.3 (South Georgia and Shag Rocks)
determine size at maturity for male and female individuals.A considerable amount of original data indicated ... Abstract: Studies of Patagonian toothfish size composition in fishing area 48.3 were made to ... that male Patagonian toothfish attained maturity being of a smaller size than female individuals. Half ... maturity ogive was drawn and compared with size composition in catches of recent years to show that ...
Meeting Document : WG-FSA-03/99 : Author(s): K.V. Shust and A.N. Kozlov (Russia)
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Correlation between krill and Champsocephalus gunnari stocks in the South Georgia Area 48.3
South Georgia. At the same time, lasting of the feeding stocks of C. gunnari depended on weather ... Abstract: After almost a ten-year gap in fishing for Champsocephalus gunnari in the area of South ... short-time fishing operation in February-March, 1999. Overall, 85 pelagic trawlings yielded 264 tons of ... determine a clear correlation between concentrations of adult fish and krill on the north-western shelf of ...
Meeting Document : WG-EMM-99/27 : Author(s): K.V. Shust, V.L. Senioukov, P.N. Kochkin andN.A. Petrukhina (Russia)