Résultats de la recherche
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Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions
reached by length-frequency analysis may be unreliable. In this study, the correlation between the body ... unchanged. If crystalline cone number is little affected by shrinking, then the crystalline cone number may ...
Meeting Document : WG-Krill-94/17 : Auteur(s): W. de la Mare (Australia)
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Fishes caught along with the Antarctic krill in the vicinity of the South Shetland Islands during the austral summer months of 1994
Abstract: Observations on abundance of by-catch fishes were made during the austral summer months ... in 25 trawl catches (Table 1). Among by-catch fishes, juvenile Lepidonotothen larseni was the most ... Islands. Among 99 net hauls examined, a total of 77 specimens of fishes belonging to 13 species were found ... abundant (26 individuals) and most common species (found at 11 hauls). Juvenile and postlarval ...
Meeting Document : WG-Krill-94/25 : Auteur(s): T. Iwami (Japan)
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Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands
the diet of the blue-eyed shag Phalacrocorax atriceps bransfieldensis. Fish species were identified by ... by number (37.9%), whereas N. coriiceps prevailed in mass (35.8%). With the exception of G ... means of otoliths found in the casts. The size and weight of the fish were estimated from the otolith ... , comprising 91% of prey items. From the 937 otoliths found, 562 fish were represented and 524 were assigned to ...
Meeting Document : WG-CEMP-94/32 : Auteur(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)
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Antarctic krill, Euphausia superba Dana, demography studies in the seas of Sodruzhestvo and Cosmonauts (Indian Ocean sector of Antarctica)
. Bertalanffy growth curves calculated for different areas are close to that obtained by Australian researchers ... (Hosie et al., 1988) for the Prydz Bay by data for 1981-1985. Basing on long-term observations, relations ...
Meeting Document : WG-KRILL-93/45 : Auteur(s): E.A. Pakhomov (Ukraine)
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
, dominated in recent years by the 1987 year class (1 year olds in 1988), was quite robust, despite the use of ... approach to management for 1992/93 is recommended, based on the results of surveys by Falklands Protector ...
Meeting Document : WG-FSA-92/27 : Auteur(s): G. Parkes (United Kingdom)
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
" models of krill distribution are considered. These achieve overall spatial correlation by placing ... by MV SA Agulhas. However, evidence of model misspecification remains. Further work is needed before ...
Meeting Document : WG-KRILL-91/21 : Auteur(s): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)
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Statistical problems in krill stock hydroacoustic assessments
for deciding what method is most appropriate, this is made even more difficult by the fact that most ... data collected from non-stationary populations, which have not been well addressed by present ...
Meeting Document : SC-CAMLR-VII/BG/22 : Auteur(s): United States of America
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An analysis of early change in the blubber thickness of minke whales as an indicator of krill availability
and IV (0-130 E) by Japanese expeditions from 1971/72 to 1984/85 seasons were analysed. Statistically ... . Comparison based on the difference between the thickness in December in successive years was proved valid, by ...
Meeting Document : WG-CEMP-87/18 : Auteur(s): Y. Shimadzu (USA)
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Survey estimates of recruitment of toothfish in Subarea 48.3
data used by the Working Group for toothfish assessments in 1999 and later were correct. We found ... , the modal progression of peaks in the length densities corresponding to cohorts assessed by sequential ...
Meeting Document : WG-FSA-SAM-04/16 : Auteur(s): Collins, M., Wakeford, R.C., Moir-Clark, J., Belchier, M., Agnew, D.J.
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Further development of the fishery plans
established by the Scientific Committee and Commission. In recent years, Plans have been drafted for the krill ... agreed by the Commission, as well as key operational information for each fishery. In 2004, the ...
Meeting Document : WG-FSA-SAM-04/04 : Auteur(s): Secretariat