Resultados de la búsqueda
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Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region
originally estimated and that, in recent years, there has been an influx of a large number of young fish ... manner while still juvenile and with some years before becoming reproductively mature. Author(s): A.J ... the identification of Ground B as the most important area for 7 to 8 year old fish in the Heard Island ...
Meeting Document : WG-FSA-99/68 : Autor(es): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA
Bird Island, South Georgia over the last 10 years, but only small amounts from the other sites. Plastic ... was oil. The last ten years of data show fluctuation in the occurrence of marine debris at any of the ...
Meeting Document : WG-IMAF-09/08 : Autor(es): Secretariat
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The state of exploited fish stocks in the Atlantic sector of the Southern Ocean
first peak years 1969-71 which yielded about 500,000 tonnes in 2 seasons around South Georgia. Since ... over a period of 10 years. Stock size of C. gunnari around South Georgia is largely dependent on the ...
Meeting Document : SC-CAMLR-VIII/BG/18 : Autor(es): Delegation of Federal Republic of Germany
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The State of Exploited Fish Stocks in the Atlantic Sector of the Southern Ocean in 1988
first peak years 1969-71 which yielded about 500,000 tonnes in 2 seasons. Since 1975/76 fishing is ... of the 1970s. Simulation studies indicate that the stock size will only double within 10 years time ...
Meeting Document : WG-FSA-88/14 : Autor(es): K.-H. Kock and F.-W. Köster (FRG)
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Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia
us to determine that the Champsocephalus gunnari grew 55cm in 17 years and the Notothenia rossii grew ... 55 cm in 7 years. The lack of: the large size groups for Notothenia rossii may be indicative of over ...
Meeting Document : SC-CAMLR-VI/BG/43 : Autor(es): R. Radtke (USA)
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Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update
and the resulting data should not be used in stock assessments with only few years of data available ... assessments, since data obtained from a tagging program in recent years only can be sufficiently informative ... estimates from an integrated tag-based assessment are influenced by various aspects of a multi-year tagging ... SSB0 and SSB status in the assessment year stabilized or were relatively small with a tag size-overlap ...
Meeting Document : WG-FSA-12/18 : Autor(es): P.E. Ziegler (Australia)
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The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
RSTS were generally high in comparison with previous years, with the total fish catch being twice as ... ), anemones and corals. Catches of individual taxa were generally much lower than in previous years, except ...
Meeting Document : WG-FSA-12/25 : Autor(es): G.B. Nowara and T. Lamb (Australia)
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Decadal trends in the South Georgia demersal fish assemblage
biomass were seen across survey years. Species counts were highly variable across the shelf region and ... years accounting for 97% of total demersal fish biomass. The relative abundance of these species was ...
Meeting Document : WG-FSA-13/26 : Autor(es): M. Belchier (United Kingdom)
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Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G
next 2–3 years) it be made mandatory for vessels to complete all of their sets inside one or more of ... could be relaxed in future years once sufficient tags have been recaptured to carry out an assessment of ...
Meeting Document : WG-FSA-14/59 : Autor(es): S.M. Hanchet and S.J. Parker (New Zealand)
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The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
Abstract: VHF radiotelemetry data has been used for over thirty years to monitor the behavior ... decreasing cost over the last thirty years, TDRs are a more appropriate means to collect attendance data on ...
Meeting Document : WG-EMM-15/P05 : Autor(es): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs