Résultats de la recherche
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Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate
number of calves recorded each year varied from 7 to 43 (x = 21.11 ± 11.88). Using cross-correlation ... correlations were found with krill densities (r = 0.69, p = 0.002, lag 0 years), Oceanic Niño Index (r = −0.65 ... , p = 0.03, lag 6 years), Antarctic Oscillation (r = 0.76, p = 0.01, lag 7 years) and Antarctic sea ... ice area (r = −0.68, p = 0.002, lag 0 years). Our results suggest that global climate indices ...
Meeting Document : WG-EMM-16/P06 : Auteur(s): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi
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Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data
the effect of not updating an assessment every year, and also the evolution of stock assessments with ... assessments, when each extra year of withheld data represented a large contribution to the model. In later ... example even when the number of tag recaptures in the most recent year was doubled or halved, the ... model outputs of withholding from a stock assessment between one and eight years of age frequency and/or ...
Meeting Document : WG-SAM-11/17 : Auteur(s): S. Mormede (New Zealand)
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Using stationary acoustic platforms to assess precision and accuracy of acoustical krill surveys
a depth of ~20 m during daytime, while 24 % was found above ~20 m during night. A swarm detection ... approach suggested a similar pattern, 7 % of aggregated backscatter was found above ~20 m during daytime ...
Meeting Document : WG-EMM-2019/32 : Auteur(s): T. Klevjer, G. Skaret and B.A. Krafft
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Dynamics of Notothenia rossii rossii size-age structure on the Kerguelen Islands shelf
used to characterise the age composition. It was determined that in the initial years of exploitation ... catches and in some years (1981-1985) fisheries were based practically on recruitment. After the closure ... . In May-June 1991 the mean length was 59.2 cm, mean age was 7.4 years; some 70% of catch consisted of ... that observed in the initial years of exploitation and further closure of marbled rockcod specialised ...
Meeting Document : WG-FSA-94/04 : Auteur(s): P.B. Tankevich (Ukraine)
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Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V
. In Area V, in a year of high sea-ice extent, the krill-rich slope region in the western zone was ... the six years included in the study, two were categorized as years of poor body fat condition, and ... three as years of good condition. Estimated body weight gain during the feeding season in poor years was ... 25 % lower than in good years. The relationship between girth and stomach content mass in the ice ...
Meeting Document : WG-EMM-97/18 : Auteur(s): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.
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REVISION DES PRESCRIPTIONS TECHNIQUES ENCADRANT LA PECHE A LA LEGINE AFIN DE LIMITER LES PRISES ACCESSOIRES
together socio-economic aspects and fishery history, steps implemented by each vessel to minimize avian ...
Meeting Document : SC-CAMLR-XXX/BG/10 : Auteur(s): Delegation of France
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AN ECOSYSTEM-BASED MANAGEMENT PROCEDURE FOR KRILL FISHERIES: A METHOD FOR DETERMINING SPATIALLY-STRUCTURED CATCH LIMITS TO MANAGE RISK OF SIGNIFICANT LOCALISED FISHERIES IMPACTS ON PREDATORS.
krill fisheries which draws together past experience in CCAMLR. It provides an empirical ecosystem ...
Meeting Document : WG-SAM-08/16 : Auteur(s): A. Constable and S. Candy (Australia)
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EXTRAPOLATING CONTINUOUS PLANKTON RECORDER DATA THROUGH THE SOUTHERN OCEAN USING BOOSTED REGRESSION TREES
multivariate space defined by all environmental data layers together. The multivariate statistic was used to ...
Meeting Document : WG-SAM-08/12 : Auteur(s): M.H. Pinkerton, A.N.H. Smith (New Zealand), B. Raymond, G. Hosie (Australia) and B. Sharp (New Zealand)
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An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators
krill fisheries which draws together past experience in CCAMLR. It provides an empirical ecosystem ...
Meeting Document : WG-EMM-15/36 : Auteur(s): A. Constable and S. Candy (Australia)
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KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016
database, KRILLBASE, together with environmental information, standardisation and metadata. The aim is to ...
Meeting Document : WG-EMM-17/P03 : Auteur(s): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, R. Anadon, S. Chiba, K.L. Daly, R. Downie, S. Fielding, P. Fretwell, L. Gerrish, G.W. Hosie, M.J. Jessopp, S. Kawaguchi, B.A. Krafft, V. Loeb, J. Nishikawa, H.J. Peat, C.S. Reiss, R.M. Ross, L.B. Quetin, K. Schmidt, D.K. Steinberg, R.C. Subramaniam, G.A. Tarling and P. Ward