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A model at the level of the foraging trip for the indirect effects of krill (Euphausia superba) fisheries on krill predators
Abstract: 1. Although the development of fisheries for krill in the southern oceans has prompted ... allocate krill to their offspring. 6. We evaluate expected reproductive success (offspring survival) and ... with slopes less than 1; that is, reductions in reproductive success and parental survival are linear ... functions of krill catch but not 1:1. The reductions in offspring and parent survival are mainly determined ...
Meeting Document : WG-EMM-96/20 : Автор(ы): Switzer, P.V., Mangel, M.
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Fishing of the Patagonian toothfish (Dissostichus eleginoides) by the Chilean fleet (1991/92) in the Subarea 48.3 (South Georgia Island) and proposed TAC for the 1991/1993 season
of the island, hauls being made at depths between 1 100 and 1 450 m. The effort applied by the ... method, TACs ranged between 1 085 and 5 768 tonnes, whereas the cohort analysis gave TACs fluctuating ... Subarea 48.3 is 6 000 tonnes. Author(s): P.A. Espina, M.A. Araya and V.V. Meniconi (Chile) Title ...
Meeting Document : WG-FSA-92/24 : Автор(ы): P.A. Espina, M.A. Araya and V.V. Meniconi (Chile)
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Variation in standing stock of the mackerel icefish Champsocephalus gunnari at South Georgia
Abstract: 1. Bottom trawl surveys on the South Georgia shelf indicate episodic declines in the ... . 6. The study demonstrates how a key predator can have an over-riding impact on a commercial fish ...
Meeting Document : WG-FSA-99/63 : Автор(ы): I. Everson, G. Parkes (United Kingdom), K.-H. Kock (Germany) and I. Boyd (United Kingdom)
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Peches exploratoires dans la sous-zone 58.6, resultats des campagnes 1983 a 1995
Crozet archipelago (sub-area 58-6) does not allow to detect any other marine living resources than the ... -adults and adults as observed in the division 58-5-1 (Kerguelen) located more easternly. Two geographical ...
Meeting Document : WG-FSA-95/10 : Автор(ы): Duhamel, G.
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Numerical model of ecosystem including Euphausia superba Dana as a key species in circumpolar region
govern the biochemical cycle in Antarctic Ocean, we made a research plan as follows: (1) to develop an ... numerical model including the effect of marine mammal consumption and catch of krill (6) to develop the ...
Meeting Document : WG-Krill-94/26 : Автор(ы): M.J. Kishi and M. Naganobu (Japan)
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Analysis of changes in biomass of fish stocks in the South Georgia Area in 1976/77 – 1986/87
-1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ...
Meeting Document : WG-FSA-87/10 : Автор(ы): M. Mucha and W. Ślósarczyk (Poland)
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Analysis of changes in biomass of fish stocks in the south Georgia Area in 1976/77 – 1986/87
-1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1/6 of the ...
Meeting Document : SC-CAMLR-VI/BG/40 : Автор(ы): M. Mucha and W. Ślósarczyk (Poland)
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Assessment of escape mortality of Antarctic krill (Euphausia superba) in trawls
to a realistic catching process in a 16 mm mesh size, was found to be 1-6%. Krill may be more ...
Meeting Document : WG-EMM-14/14 : Автор(ы): B.A. Krafft (Norway) and L.A. Krag (Denmark)
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Microincrement analysis in otoliths of Notothenia rossii fingerlings from the South Shetland Islands to estimate early life history timings and to validate annulus formation
date of capture showed two main periods of larval hatching separated by 5-6 months, one in late summer ... , belonging to biological ages 0+ and 1+ that hatched respectively in summer and winter. The growth rate of N ... . Finally, early juveniles (age group 1+) hatched in July-August, entering in the cove the following year to ...
Meeting Document : WG-FSA-12/04 : Автор(ы): E. Barrera-Oro (Argentina) and M. La Mesa (Italy)
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Modelling growth of Antarctic krill: a new approach to describing the growth trajectory
from an age 1+ mean length for different scenarios of winter and spring growth. We then provide ... -growth VB models. Our models indicate that, allowing for shrinkage, age 6+ mean length for the Indian ...
Meeting Document : WG-EMM-05/27 : Автор(ы): S. Candy and S. Kawaguchi (Australia)
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