Résultats de la recherche

1. Competition-induced starvation drives large-scale population cycles in Antarctic krill

   —exhibits a five to six year population cycle, with oscillations in biomass exceeding one order of magnitude ... models. Here, using data analysis complemented with modelling of krill ontogeny and population dynamics ... that the cycle amplitude increases with reduction of krill loss rates. Thus, a decline of apex ... , with drastic consequences for the entire Antarctic ecosystem. Author(s):  A.B. Ryabov, A.M. de Roos, B ...

   Meeting Document : WG-EMM-18/P05 : Auteur(s): A.B. Ryabov, A.M. de Roos, B. Meyer, S. Kawaguchi and B. Blasius

2. DISTRIBUTION AND ABUNDANCE OF ANTARCTIC TOOTHFISH IN THE ROSS SEA

   (s):  S.M. Hanchet, S. Mormede and A. Dunn (New Zealand) Title:  DISTRIBUTION AND ABUNDANCE OF ...

   Meeting Document : WG-EMM-09/40 : Auteur(s): S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

3. Conservation Measure Conservation Measure 210/XIX (2000)

   shall be limited to the exploratory longline fishery by New Zealand, South Africa and Uruguay. The ... fishery shall be conducted by three New Zealand, two South African and one Uruguayan-flagged vessels using ... for the above species shall be carried out in accordance with Conservation Measures 29/XIX and 200/XIX ... accordance with Conservation Measure 65/XII: 1. Fishing for Dissostichus spp. in Statistical Subarea 88.1 ...

   Conservation Measure : 210/XIX (2000)

4. CCAMLR Statistical Bulletin, Vol. 29 selected tables

   seabed areas by selected depth intervals in the Convention Area. *NEW in 2017* The catch history of ... Statistical Bulletin Data Dictionary.pdf). The data model is based on a star schema with fact tables ... Corea NamibiaNAM Namibie Намибия Namibia NorwayNOR Norvège Норвегия Noruega New ZealandNZL ... with viscera intact 1.7 Etêté et équeuté, viscères intactes Без головы и хвоста (тушка), непотрошена ...

   Document : Site Section: Data

5. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   scaling methods on detected effort Abstract / Description:  A new method for estimating illegal fishing ... effort is put forward. The results from this new method are similar to those of the Agnew and Kirkwood ... and when good knowledge exists that zero observations reflect zero illegal fishing. The new method ... by illegal activity. Both the new and the current method suffer from the fact that the observation ... associated with zero detections. The new method The new method reverses the problem by ask- ing what the ... volume). Ball 152 Figure 1: Comparison of the Agnew and Kirkwood (2005) method with the new method ... Heritage Channel Highway, Kingston 7050 Tasmania, Australia Email – ian.ball@aad.gov.au Abstract A new ... method for estimating illegal fi shing effort is put forward. The results from this new method are ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Auteur(s): Ball, I

6. Conservation Measure Conservation Measure 41-09 (2005)

   longline fishery by Argentina, Republic of Korea, New Zealand, Norway, Russia, South Africa, Spain, UK and ... , five (5) New Zealand, one (1) Norwegian, two (2) Russian, one (1) South African, three (3) Spanish ... Commission hereby adopts the following conservation measure in accordance with Conservation Measure 21-02 ... Dissostichus spp. in Statistical Subarea 88.1 shall be carried out in accordance with the provisions of ...

   Conservation Measure : 41-09 (2005)

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

   , with marginal class probabilities generated using a simple age-structured model incorporating fishing ... empirical coefficient of variation (CV) in the proportions, with one being based on an existing CV model ... used for CCAMLR fisheries while the other is a new method. The methods that use haul-level frequencies ... gave accurate estimators of an ESS that is appropriate for haul-level heterogeneity with increasing ... within fishing year was simulated using samples from the Dirichlet-multinomial (D-M) distribution, with ... for the empirical coefficient of variation (CV) in the proportions, with one being based on an ... existing CV model used for CCAMLR fisheries while the other is a new method. The methods that use haul ... with increasing accuracy in the following order: (i) the estimator based on the existing CV model ...

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

8. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   mortality rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in ... based on the CCAMLR generalised yield model (GYM), with periodically varying natural mortality, provides ... temporary, conservative long-term yield, a new approach and set of decision rules will ultimately be ... rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in years ... approach based on the CCAMLR generalised yield model (GYM), with periodically varying natural mortality ... temporary, conservative long-term yield, a new approach and set of decision rules will ultimately be ... fishing pressure. Rather, they may have been associated with increased predation by fur seals in years ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Auteur(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

9. OTOLITH CHEMISTRY INDICATES POPULATION STRUCTURING BY THE ANTARCTIC CIRCUMPOLAR CURRENT

   the Antarctic and between some Antarctic areas. We also found evidence of four groups of fish with ... different early life chemistry: one associated with South America and three Antarctic groups showing mixing ... consistent with advective transport along the ACC. These results suggest that toothfish populations are ... number of breeding members with access to spawning grounds, whereas fisheries may rely substantially on ...

   Meeting Document : WG-FSA-08/P05 - Abstract : Auteur(s): J.R. Ashford, C.M. Jones, E.E. Hofmann, I. Everson, C.A. Moreno, G. Duhamel and R. Williams

10. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

    Abstract:  A new method for estimating illegal fishing effort is put forward. The results from ... this new method are similar to those of the Agnew and Kirkwood (2005) method, and this suggests that ... zero observations reflect zero illegal fishing. The new method performs better in the case of zero ... detections and can potentially better handle the evasion of detection by illegal activity. Both the new and ...

    Meeting Document : WG-FSA-05/P7 : Auteur(s): Ball, I.

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