WS-KCPUE-89/01
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Agenda for the Krill CPUE Workshop
CCAMLR Secretariat
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WS-KCPUE-89/02
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Annotated agenda
CCAMLR Secretariat
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WS-KCPUE-89/03
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Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery. (Component of SC-CAMLR-VI/BG/4)
Butterworth, D.S.
Resumen:
The history of the Japanese krill fishery is reviewed briefly. Important aspects of the fishing operation are the constraints imposed by processing rate limitations on the vessels, and product quality considerations - in particular the increasing tendency to avoid catching "green” krill. These factors result in Catch-per-Day and Catch-per-Haul measures being unlikely to index krill abundance. Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Aprobado por:
Admin Admin (Secretaría de la CCRVMA)
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WS-KCPUE-89/04
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A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)
Butterworth, D.S.
Resumen:
A model is set up for the operation (which includes both searching and fishing) of a Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model whose parameters are determined primarily from the scientific FIBEX surveys. Output from the model of the operation is compared with (and partially tuned to) statistics for a sample of data from the Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Aprobado por:
Admin Admin (Secretaría de la CCRVMA)
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WS-KCPUE-89/07
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Brief comments on the simulation study made by Prof. Butterworth on krill fishing by an individual Japanese trawler
Ichii, T. and Y. Endo
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WS-KCPUE-89/08
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CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island
Ichii, T. and Y. Endo
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WS-KCPUE-89/09
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Some examples of time budget data recorded by a Japanese trawler Ehiko Maru in 1986/87 season
Ichii, T. and Y. Endo
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WS-KCPUE-89/10
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Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988
Endo, Y. and Y. Shimadzu
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WS-KCPUE-89/11
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Krill aggregation characteristics: spatial distribution patterns from hydroacoustic observations
Miller, D.G.M. and I. Hampton
Resumen:
The distributional features and physical characteristics of some 1500 krill (Euphausia superba Dana) aggregations detected and sized acoustically in the south-west Indian Ocean are described. The aggregations were on average considerably smaller than elsewhere in the Antarctic. Aggregation biomass was log-normally distributed with a mean of 0.18 t. Only 3% of the aggregations were heavier than Read More
Presentado por:
Admin Admin (Secretaría de la CCRVMA)
Aprobado por:
Admin Admin (Secretaría de la CCRVMA)
Publicación:
Miller, D.G.M. and I. Hampton. 1989. Krill aggregation characteristics: Spatial distribution patterns from hydroacoustic observations. Polar Biol, 10: 125–134. https://doi.org/10.1007/BF00239157.
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