Search results
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
surestimation de la demande de krill des predateurs. M6me si ces estimations mettant en evidence une faible ... d'intensite acoustique qui est depassee et qui sous-estime la biomasse de krill par un facteur de trois, si ... . Aun si estas estimaciones bajas de la biomasa de kril son correctas, es probable que 10s limites de ... ) est estimee B partir d'estimations recentes de la densite de krill fournies par des campagnes ... tonnes- at the low end of values that have been suggested in the past. The differences between our ... . Additionally, the current precautionary catch limits in the South Atlantic are set using a superseded acoustic ... survey of the South Atlantic in January 2000 may result in an effective biomass which is greater than the ... value used in the past. The seasonal and local consequences of large catch limits will have to be taken ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Author(s): Nicol, S., A.J. Constable and T. Pauly
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Interannual variability of krill, salp and other zooplankton populations in the South Shetland Island area during Austral summer 1993–1998
associated with extremely high salp abundance. Sa/pa thompsoni abundance was similar to levels during ... with extremely high salp abundance. Sa/pa thompsoni abundance was similar to levels during the 1993 "salp year ...
Meeting Document : WG-EMM-98/50 : Author(s): V. Loeb, W. Armstrong, R. Hewitt (USA) and V. Siegel (Germany)
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SC-CAMLR-XII
(W.K. de la Mare, Australia) SC-CAMLR-XII/BG/10 Southern Ocean cephalopods symposium Delegation ... Livingston, Antartica Delegación de Chile SC-CAMLR-XII/BG/18 Report on measures on board Russian vessels ...
Meeting
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CCAMLR-XXIII
Package Secretariat CCAMLR-XXIII/BG/19 Évaluation de la pêche illicite dans les eaux françaises adjacentes ... générales sur la zone 58 de la CCAMLR Délégation française CCAMLR-XXIII/BG/20 Mise en œuvre du C-VMS ... aux îles Kerguelen et Crozet pour la saison 2003/04 (1er juillet 2003–30 juin 2004) Informations ...
Meeting
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
impacto, o una prueba combinada de la diferencia y la pendiente. Si bien se considera que la duración de ... . Résumé Des modèles de variabilité de la durée des sorties alimentaires du manchot Adélie ont été ... construits et ajustés aux données collectées à l’île Béchervaise pendant une période de 12 années lorsque la ... de variabilité sont utilisées pour évaluer la capacité à détecter les changements dans des scénarios ... Paper Title: Assessing the power to detect systematic change in Adélie penguin foraging trip ... duration Abstract / Description: Models of variability in Adélie penguin foraging trip durations were ... variation was known to occur. Variability among trips and penguins was greater in the crèche stage, but ... variability among years was greater in the guard stage. Estimates of variability were used to explore the ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Author(s): Southwell, C., J. Clarke and L.M. Emmerson
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Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a
exploités dans des pêcheries nouvelles ou exploratoires de la zone de la Convention CAMLR. La méthode ... sont pas disponibles – à savoir des données de capture selon la longueur et l’âge et des données de ... marquage selon la longueur et l’âge. Un algorithme simple, basé sur l’estimateur d’abondance de Petersen ... de gestion de la CCAMLR. La combinaison des méthodes d’évaluation et d’adaptation des taux de ... Paper Title: Assessment and tag program adaption methods for exploratory fisheries in the CAMLR ... exploratory stocks in the CAMLR Convention Area. The assessment methodology is designed to be able to ... tagging levels that will produce an expected abundance estimate in the following year of a given precision ... tested using the assessment results for toothfish in CCAMLR Subarea 48.3 and the assessment method is ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Author(s): Hillary, R.M
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Target strengths of Antarctic krill (Euphausia superba)
2 Legendes des tableaux Resume des reponses acoustiques du krill par cas. La taille de I'echantillon ... mesurees a 38 et 120 kHz. Les resultats indiquent que les valeurs de la reponse acoustique sont nettement ... ~eu,H6e~ HH)I{e, lIeM paHee npe~no~araeMble. Resumen Se ha medido la Fuerza de Retrodispersi6n ... del Volumen Medio de las agregaciones enjauladas de krill que nada a 38 y 120 kHz en una bahfa ... and 120 kHz in a sheltered bay at South Georgia. The results indicate that the Target Strength values ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Author(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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SC-CAMLR-XXV
de la biomasse et campagne de marquage Délégation française SC-CAMLR-XXV/BG/18 To the question ...
Meeting
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e-sc-xv-a4.pdf
... (UK), W. de la Mare (Australia), D. Demer (USA), G. Kirkwood (UK), K.-H. Kock (Chairman, Scientific ... be just as relevant for site selection. 4.10 Dr de la Mare suggested that site selection should take ... strength of the average length, D TS{E(L)}. This is generally known as Jensen’s inequality (De Groot ... area backscattering coefficient (Sa) values from an acoustic survey in Division 58.4.1
application/pdf attached to:WG-EMM-96
Meeting Report : WG-EMM-96
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On dispersion of different pelagic organisms, forming Antarctic backscattering in South Sandwich subarea during January–February 2000
. A comparative analysis of mean stratum Sa values obtained for krill and myctophid fishes indicated that biomass ... analysis of mean stratum Sa values obtained for krill and myctophid fishes indicated that biomass ...
Meeting Document : WG-EMM-01/61 : Author(s): S.M. Kasatkina and A.P. Malyshko (Russia)