Résultats de la recherche

1. Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?

   index of a morphometric characteristic? Abstract / Description:  In sexually dimorphic species ... avoiding the necessity of sex determination. However, uncertainty in sex ratios can lead to considerable ... . ll03TOMY, 06blqHO npH HOpMaJIbHblX pe)l{HMaX c60pa np06 ,lIJI5I nOJIyqeHH5I CTaTHCTHqeCKH YCTOHqHBblX o ... impossible a deceler si l'echantillon porte sur moins de 600 oiseaux. Par consequent, sous la plupart des ... femelles. 11 n'est plus necessaire de determiner les sexes si l'on utilise la procedure qui consiste It ... distributions de GauS se chevauchant mettent en evidence la difference entre la moyenne reelle d'une ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Auteur(s): Agnew, D.J.

2. Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   toothfish fishery in the Ross Sea dependency in 2002 were identified by observers and returned to New ... in the Ross Sea (CCAMLR Subarea 88.1). The zones are assumed to form annually as this ageing ... to be from 12 to 14 years. Résumé Des échantillons de grenadiers macrouridés prélevés dans la ... capture accessoire de la pêche à la légine menée en 2002 dans les eaux territoriales de la mer de Ross ... été déclaré, sur la base des comparaisons d’otolithes et de la source géographique d’un échantillon ... macrouridés à écailles en écusson (M. whitsoni) d’un échantillon prélevé au cours de la pêche commerciale à ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan

3. [node:field-journal-volume]:37-51

   to be from 12 to 14 years. Résumé Des échantillons de grenadiers macrouridés prélevés dans la ... capture accessoire de la pêche à la légine menée en 2002 dans les eaux territoriales de la mer de Ross ... été déclaré, sur la base des comparaisons d’otolithes et de la source géographique d’un échantillon ... macrouridés à écailles en écusson (M. whitsoni) d’un échantillon prélevé au cours de la pêche commerciale à ...

   Science Journal Paper : 37–51

4. Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill

   proportional recruitment of krill. In this study, krill sampling data for empirical size frequencies were ... . The annual proportions of krill less than 36 mm in length to the total captured in net samples in four ... proportional recruitment in the CCAMLR study areas was similar to the variability in other krill studies and in ... the annual size distributions of krill in penguin diets. Simulations with either no fishing, or with ... frequencies differs somewhat from the CMIX-based method more commonly used in CCAMLR studies (de la Mare ... –54. Constable, A.J. and W.K. de la Mare. 1998. Bias in the estimation of krill yield from using a ... yield model (GYM) (Constable and de la Mare, 1996; Constable et al., 2003). The GYM is a simulation ... Jolla Shores Drive La Jolla, CA 92037, USA Email – doug.kinzey@noaa.gov Abstract The generalised ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Auteur(s): Kinzey, D., G. Watters and C.S. Reiss

5. The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species

   in its infancy. A general approach is proposed for maintaining ecological relationships and providing ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... objectives? The approach proposed here takes account of uncertainties in knowledge of the structure of ... ecosystems. Estimates of predator production arising from the consumption of fished species (encapsulated in ... enfoques podrian corrsiderarse para alcanzar 10s objetivos de conscrvacioi-r? El enfoque propuesto toma en ... ~~ders tand the implicatiol~s of those cl ia~~ges (e.g. Tilman, 1999). Very little research effort ... marine ecosystem - de la Mare, 1997; Constable et al., in press), an approach is needed that takes ... document aborde diverses questions g6n6rales applicables 5 l'approche de la gestion des p&hes tenant ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J

6. New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands

   variations in abundance have been observed. During the sampling period the 1988 cohort was dominant on the ... . Only once have spawners been observed in large numbers on the inner shelf: during the winter of 1991/92 ... gunnari. Un programa de prospecciones de arrastre de fondo y de toma de muestras de ictioplancton ... r . PaHee ~a6nH)na~ruHiicrr ~pe~r0nMY~blfi UHKJI, no-BMAHMOMY, CBR3aH C 3TanOM C03peBaHMII ... trimestrielles de la zone interne du plateau, tant par prelevements de l'ichtyoplancton que par chalutages de ... la partie externe du plateau. Le cycle de trois ans observe precedemment semble etre lie au stade de ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Auteur(s): Duhamel, G

7. The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)

   of the development of a management regime for them. Finally it aims to highlight areas in which ... further research should be directed in order to provide information on which to base the most appropriate ... assessment and management methods in light of continuing interest in the regional crab fishery. Considerable ... gaps in our knowledge of the biology, ecology and demography of the lithodid species at South Georgia ... lo g le ng th (f ro m O tto a nd M ac In to sh , 1 99 6) . C ra b ty pe Lo g ... . Tr ai t Pa ra lo m is fo rm os a P. sp in os is si m a N eo lit ho de s d io m ed ... re la tio ns hi p be tw ee n ca ra pa ce w id th ( C W ) an d ca ra pa ce l en ... ie s a b R – sq n Pa ra lo m is sp in os is si m a 6. 45 7 0. 99 4 0. 97 7 ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Auteur(s): Belchier, M., T. Peatman and J. Brown

8. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   ‘effective sample size’ (ESS) in integrated assessments is an approximate but simple way of modelling the ... empirical coefficient of variation (CV) in the proportions, with one being based on an existing CV model ... accuracy in the following order: (i) the estimator based on the existing CV model; (ii) that based on the ... method. To account for process error in the calculation of the ESS, the lack of fit of the age-structured ... método iterativo de dos fases. El ESS será corregido en exceso si la falla del ajuste incluye un ... -structured assessment model. Résumé L'intégration de la "taille effective d'un échantillon" (ESS pour ... effective sample size) dans les évaluations intégrées est un moyen approximatif mais simple de modéliser la ... distribution des fréquences d'âges ou de longueurs dans la capture selon une vraisemblance multinomiale en ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Auteur(s): Candy, S.G

9. Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen

   off Kerguelen in 1999 were estimated by reading transverse-sectioned otoliths. Randomly interspersed ... showed discrepancies due to gear-specific catchability, or differences in the available population with ... depth or season. Age–length keys were constructed for use in assessing toothfish catches made by ... mortality Z was estimated to be between 0.09 and 0.12. Significant differences in age-at-length data between ... par lecture de coupes transversales d’otolithes. La précision est mesurée sur les otolithes choisis ... de la austromerluza negra (Dissostichus eleginoides) extraída en los alrededores de Kerguelén en ... 1999 mediante la lectura de secciones transversales de otolitos. A fi n de asegurar la precisión ... , durante el proceso de la lectura se introdujeron al azar otolitos provenientes de colecciones de ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Auteur(s): Ashford, J., G. Duhamel, C. Jones and S. Bobko

10. The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design

    krill which are used in models to estimate sustainable yield in Area 48. The survey design includes two ... large-scale oceanic strata: one in the southwest Atlantic located in the Scotia Sea, and the other to ... these large-scale strata, four mesoscale strata were included in the survey design; these were located ... and the planned cruise tracks for each of the four vessels participating in the survey are shown ... y r o n b ~ o B ~ o w u e c ~ o i i npoeeum J ia~Gep~a . TaGn. 3: n a p a ~ e ~ p b r nnrl ... distribution in the area studied. Description de la campagne CCAMLR-2000 d'evaluation synoptique du krill ... PO Box 271, La Jolla, Ca. 92038, USA M. Naganobu and S. Kawaguchi National Research Institute of ... (campagne CCAMLR-2000). L'objectif principal de la campagne d'evaluation etait d'obtenir de meilleures ...

    Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Auteur(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly

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