Resultados de la búsqueda
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A simple approach for calculating the potential yield of krill from biomass survey results
values of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance ... calculations is that the probability that the kri11 spawning biomass drops below 20% of its average pre ... -exploitation level over a 20 year period of harvesting should not exceed l0%. The value of λ depends strongly ... on the value of M (natural mortality) and σR (recruitment variability), and also on the relative ...
Meeting Document : WG-KRILL-91/24 : Autor(es): D.S. Butterworth (South Africa) and M. Basson (United Kingdom)
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Translation review of the Basic Documents and the conservation measures
publication of the Schedule of Conservation Measures in Force, following their adoption by the Commission at ... Abstract: In 2018, the Secretariat undertook a comprehensive translation review of all ... of major issues identified in the conservation measures and the Basic Documents are appended, and the ... the next version of the Basic Documents and will be incorporated into translations of the next ...
Meeting Document : CCAMLR-XXXVII/BG/12 : Autor(es): CCAMLR Secretariat
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CEMP indices 1998: summary of anomalies and trends
species and the environment collected by standard methods within the three integrated study regions of the ... and anomalies are presented for data at hand. Author(s): Secretariat Title: CEMP indices 1998 ... : summary of anomalies and trends Approval: Approved Secretariat Workflow Status: Content Approved ...
Meeting Document : WG-EMM-98/04 Rev. 2 : Autor(es): Secretariat
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Proposed process for independent review of CCAMLR toothfish stock assessments
Abstract: Following discussion at the Scientific Committee in 2016, we propose a process for ... independent review of CCAMLR integrated toothfish stock assessments based on the process used by the Center ... review of CCAMLR toothfish stock assessments Microsoft Word File: fsa-17-62.docx Approval: Approved ...
Meeting Document : WG-FSA-17/62 : Autor(es): Scientific Committee Chair and Vice-Chairs and the working group conveners
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Uncertainty in reported geographical distribution and weight of krill catches from Norwegian krill fishing vessels operating continuous fishing systems
given reported catch value but not major bias. The geographical distribution of reported catch at ... of actions that would facilitate further consideration and clarification of these technical issues ... the outcome of the action steps including onboard experiments and analyses of historical catch data ... . Experiments on board ‘Saga Sea’ showed that there is an average delay of approximately 9 minutes between the ...
Meeting Document : WG-EMM-18/22 : Autor(es): G. Skaret, T. Knutsen, F. Grebstad and O.A. Bergstad
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Distribution of salps near the South Shetland Islands; their ecological significance in the area
was dominant. Horizontal distribution of salps and krill did not overlap. Krill occurred abundantly at ... Abstract: Distribution and abundance of salps were studied near the South Shetland Islands during ... the high-chlorophyll a area, in contrast, salps exhibited high biomass in the area of low chlorophyll ... : Distribution of salps near the South Shetland Islands; their ecological significance in the area Approval ...
Meeting Document : WG-KRILL-93/17 : Autor(es): J. Nishikawa, M. Naganobu, T. Ichii and K. Kawaguchi (Japan)
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Parameters for a model of the functional relationships between krill escapement and crabeater seal demographic performance
Peninsula between 1964 and 1990. Average annual survival rate of adults was estimated to be 0.93. Age at ... into a simple model of the functional relationships between krill escapement and crabeater seal ... sexual maturity was estimated to be 3.8 years. Of 44 annual estimates of historical cohort strength, 16 ... for a model of the functional relationships between krill escapement and crabeater seal demographic ...
Meeting Document : WG-CEMP-93/04 : Autor(es): P.L. Boveng and J.L. Bengtson (USA)
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Movement of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3
significant negative positive correlation between movement rate and local toothfish density at the point of ... Abstract: Movement of Patagonian toothfish in Subarea 48.3 was investigated using tagging program ... data. Data from 33,322 tag releases and 4,203 tag recaptures were used. The mean movement rate of both ... between male and female fish of the same maturity category. Male and females with developed, ripe and ...
Meeting Document : WG-SAM-12/19 : Autor(es): T. Peatman, S.M. Martin, J. Pearce and R.E. Mitchell (United Kingdom)
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Start date of the CCAMLR fishing season for Antarctic krill
start at a time of year that is based upon ecological events, rather than upon a date that is convenient ... for management. We review data on the breeding phenology of predators, and use data from the CCAMLR ... Statistical Bulletin (Version 28) to explore whether there are times of year that would reduce the potential ... S. Hill Title: Start date of the CCAMLR fishing season for Antarctic krill Microsoft Word File ...
Meeting Document : WG-EMM-16/16 : Autor(es): P. Trathan and S. Hill
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SOME POSSIBLE MODIFICATIONS TO CEMP STANDARD METHODS A3A, A3B AND A9 TO ALLOW GREATER FLEXIBILITY IN THE COLLECTION AND INTERPRETATION OF BREEDING POPULATION COUNT DATA
Abstract: At WG-EMM-09 the Working Group noted that the photographic method used in WG-EMM-09/38 ... could be incorporated as a modification of CEMP Standard Method A3 (penguin breeding population size ... ). This paper reviews aspects of Methods A3a, A3b and related A9 (breeding chronology) in the most recent ... version of the CEMP Standard Methods that are relevant to this proposal, outlines some difficulties in the ...
Meeting Document : WG-EMM-11/38 : Autor(es): C. Southwell (Australia)