Resultados de la búsqueda
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Effects of different harvesting strategies on the stock of Antarctic icefish Champsocephalus gunnari around South Georgia
Champsocephalus gunnari have been simulated for a period of 30 years. These were- diffierent levels of constant ... of the incoming year class. An increaseof F, however, should not occur before 4 years after a good ... years after a good recruitment,- pulse fishing at an interval of 3 years with no fishing in between;- a ... fishing mortality (F0.1, Fmax, 2xFmax),- harvesting contantly at 50%F0.1 with an increase of F 3 or 6 ...
Meeting Document : SC-CAMLR-VIII/BG/47 : Autor(es): Delegation of Federal Republic of Germany
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Preliminary insights of Antarctic toothfish sub-adults life-history traits from the southern Weddell Sea (Subarea 48.5)
were immature, showing an age range of 10-13 years. Main prey consisted of Antarctic silverfish and ... -Larsen Ice Shelf. In this document we report first data on individual age, gonad stage of maturity and ... Consent: No Delegation responsibility for releasing documents: Italy ...
Meeting Document : WG-FSA-18/06 : Autor(es): M. La Mesa, F. Donato and E. Riginella
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By-catch of juvenile Champsocephalus gunnari in krill fishery on the shelf of South Georgia Island
survived up to an age of one year. Author(s): G.A. Frolkina, V.I. Latogursky, V.A. Sushin (Russian ... published data. Juveniles of Champsocephalus gunnari were found to be distributed from the surface to 500 m ...
Meeting Document : WG-FSA-92/06 : Autor(es): G.A. Frolkina, V.I. Latogursky, V.A. Sushin (Russian Federation)
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AFRICAN IUU CAPACITY BUILDING WORKSHOP AND EXPENDITURE FROM THE CDS FUND – REPORT TO CCAMLR-XXIX
-05/B, paragraph B2(ix) on the progress of a proposal for expenditure from the CDS Fund to conduct an ... present gave encouragement for the improved deterrence of IUU for the longer term, and raised the prospect ... of holding similar regional events in future years. Background 2. At CCAMLR-XXVII the Commission ...
Meeting Document : CCAMLR-XXIX/09 : Autor(es): Delegations of Australia, South Africa, the United Kingdom and the CCAMLR Secretariat
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Status of krill target strength
cause of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target ... orientational parameters, for which there is an empirical basis. The theoretical estimates show a non-monotonic ... shortcomings. Some recent single-animal measurements of target strength for live euphausiids and euphausiid ... Abstract: Empirical estimates for the target strength of krill are extracted from the literature ...
Meeting Document : WG-KRILL-92/11 : Autor(es): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)
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Revised proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016 and 2017
methods will remain the same as in previous years, and the number of sets will be retained at 45 sets for ... the 2016 survey, and trends in the time series, will be presented to WG-FSA for review in 2016 and ... Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... the next two years, 2016 and 2017, is presented. The survey will continue to focus primarily on ...
Meeting Document : WG-FSA-15/34 : Autor(es): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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Proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016–2017
the same as in previous years, and the number of sets will be retained at 45 sets for the core strata ... , and trends in the time series, be presented to WG-FSA for review in 2016 and that a full review be ... Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... the next two years, 2016–2017, is presented. The survey will continue to focus primarily on estimating ...
Meeting Document : WG-SAM-15/45 : Autor(es): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V
Abstract: As an indicator of body fat condition, interannual variability in girth of minke whales ... of minke whales in Antarctic Areas IV (70°-130° E) and V (130° E-170°W) from 1989/90 to 1994/95. Of ... the six years included in the study, two were categorized as years of poor body fat condition, and ... three as years of good condition. Estimated body weight gain during the feeding season in poor years was ...
Meeting Document : WG-EMM-97/18 : Autor(es): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.
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Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001
absolute index was RI1 = 131.4 * 1000 m-3, which is among the highest values for the past 20 years. The ... Abstract: A net sampling survey was carried out for krill in an established standard station grid ... for a successful spawning season, was G = 0.99, indicating an early initiation of the spawning season ... proportional recruitment index for the entire survey area for the 1999/2000 year class was R1 = 0.573, and the ...
Meeting Document : WG-EMM-01/10 : Autor(es): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)
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Is population structure of Patagonian toothfish (Dissostichus eleginoides) determined by the Antarctic Circumpolar Current?
provide opportunities for Patagonian toothfish (Dissostichus eleginoides) to move downstream between ... population structure and richness. To test whether toothfish stocks were connected or segregated, we used an ... integrated experimental design to compare age-at-length data sampled at similar times from longline fisheries ... stocks at South Georgia and Kerguelen may be connected. Taken with the published genetic data, this ...
Meeting Document : WG-FSA-03/84 : Autor(es): J.R. Ashford, C.M. Jones, E. Hofmann (USA), I. Everson (United Kingdom) and G. Duhamel (France)