Résultats de la recherche

1. A comparison of geostatistical and random sample survey analyses of Antarctic krill acoustic data

   Abstract:  Data from the acoustic surveys of MV SA "Aghulas" and FRV "Walter Herwig ... sampling theory. A further high-resolution geostatistical analysis of the MV SA "Aghulas" (ping ... show marked skewness in their histogram of density. Author(s):  Murray, A.W.A. Title:  A comparison of ...

   Meeting Document : WG-EMM-95/76 : Auteur(s): Murray, A.W.A.

2. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

   Abstract / Description:  Trends in mean length and maturity stage of Patagonian toothfish (Dissostichus ... in addition to a major spawning event in late July/August, there may be a small spawning event in ... islands. In all areas fish increase i n s ize w i t h d e p t h (South Georg ia : Zh ivov a n d ... de maturite de la legine australe (Dissostichus eleginoides) sont examinees en utilisant les donnees ... d'environ 7000 poissons echantillonnes par des observateurs de la pitcherie de 1998 autour de la Georgie du ... caracteristique importante sur le plan statistique est decelee dans le changement de la longueur moyenne en ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Auteur(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

3. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

   discussed. File:  28-de-la-Mare-and-Constable.pdf ... states of a depleted stock, and take into account uncertainty in assessments. Sample calculations show ... that applying a policy of F 0.1 will not always lead to stock recovery in two to three decades, and ... MANAGING DEPLETED FISH STOCKS BASED ON CCAMLR OBJECTIVES W.K. de la Mare* and A. Constable** Abstract ... surexploites devraient faire l'objet de nouvelles mesures de gestion. Les implications de ces etudes pour la ... probabilisticas de la futura condicion de una poblacion mermada y toman en consideracion las ambigUedades en las ... recuperacion de la poblacion dentro de de dos 0 tres decadas y, por 10 tanto, se necesitan normas de ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Auteur(s): de la Mare, W.K. and A. Constable

4. Generalised Yield Model: User’s Manual and Specifications

   . Author(s):  A.J. Constable, A.T. Williamson and W.K. de la Mare (Australia) Title:  Generalised Yield ...

   Meeting Document : WG-FSA-02/62 : Auteur(s): A.J. Constable, A.T. Williamson and W.K. de la Mare (Australia)

5. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   Islands in 2004. Intensive analysis of otoliths from these specimens greatly increased confidence in the ... interpretation of otolith growth zone structure, supporting the otolith interpretation protocol used in previous ... , using a reduced probit model. Résumé Lors de la campagne d’évaluation BioRoss de l’ouest de la mer de ... grenadier Macrourus whitsoni. L’analyse intensive des otolithes de ces spécimens a grandement amélioré la ... confiance dans l’interprétation de la structure des zones de croissance des otolithes, confortant ainsi le ... –0.159 pour les mâles et L∞ 92,03, K 0,055 et t0 0,159 pour les femelles. Les estimations révisées de la ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Auteur(s): Marriott, P.M., M.J. Manning and P.L. Horn

6. An index of per capita recruitment

   recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year y and M ... age-l animals in the sample can be determined unambiguously. Normal, lognormal and uniform probability ... distributions of R I, and three levels of M were assumed in order to investigate the resulting distributions of ... years, and when all age-l animals spawn. These conclusions are insensitive to changes in the shape of ... reproducteur de 30% si les hypothPses avancPes sont raisonnables en ce qui concerne la variabilitg de la ... samples (de la Mare, 1994) where R1 is defined as the proportion of individuals in a given year of ... dans lequel R1 est la proportion d'individus d'5ge 1 echantillonnes en l'annee y et M est le taux de ... facteurs presumes l'affecter. La formulation de PCR repose sur plusieurs hypothPses : i) la mortalit6 des ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Auteur(s): Hewitt, R

7. Do krill and salp compete? Contrary evidence from the krill fisheries

   phenomena are discussed. Author(s):  S. Kawaguchi (Japan), W.K. de la Mare (Australia), T. Ichii and M ... proportion of green krill in the catches was evident when both salps and krill were taken together. In the ... . However, no clear relationship was observed in the Elephant Island area. Possible reasons for these ...

   Meeting Document : WS-AREA 48-98/4 Rev. 1 : Auteur(s): S. Kawaguchi (Japan), W.K. de la Mare (Australia), T. Ichii and M. Naganobu (Japan)

8. Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing

   ):  William K. de la Mare and Knowles R. Kerry (Australia) Title:  Population dynamics of the wandering ... increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year ... emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern ... albatross is estimated. An annual number of longline hooks in the southern hemisphere tuna fishery of 41.6 ...

   Meeting Document : WG-IMALF-94/07 : Auteur(s): William K. de la Mare and Knowles R. Kerry (Australia)

9. Testing the performance of a recompiled version of CMIX to decompose length-density distributions of Patagonian toothfish (Dissostichus eleginoides)

   Dissostichus eleginoides Author(s):  T.D. Lamb, W.K. de la Mare, A.J. Constable and C.R. Davies (Australia ... differences in the minimisation routines of the recompiled version. We conclude that the small differences ...

   Meeting Document : WG-FSA-04/65 : Auteur(s): T.D. Lamb, W.K. de la Mare, A.J. Constable and C.R. Davies (Australia)

10. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

    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 ... 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 ...

    Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Auteur(s): Nicol, S., A.J. Constable and T. Pauly

Pages