Résultats de la recherche

1. Pêcheries de poisson des glaces

   Mackerel icefish (Champsocephalus gunnari) is targeted by licensed fisheries in the Southern Ocean ... CCAMLR’s Working Group on Fish Stock Assessment (WG-FSA) and the Scientific Committee. See annual Fishery ... Reports. The Commission’s agreed limits for the current fishing season are defined in the Conservation ... measures. This species was heavily exploited in the 1970s and 1980s. Concern over the levels of ...

   Page : Site Section: Fisheries

2. Simulation experiments and CCAMLR yield estimates using CASAL

   present an example model for the fictitious fishery on a fictitious species Dissostichus spurious (Everson ... were fitted with an expected percent root mean squared error (%RMSE) of less than 20%. The inclusion of ... the expected performance of integrated models is required that investigates a range of alternative ... “true” states with data that includes bias and variance in observations, as well as the robustness of ...

   Meeting Document : WG-FSA-SAM-05/9 : Auteur(s): A. Dunn (New Zealand)

3. Seabird by-catch update on industrial Patagonian toothfish fishery in southern Chile

   started the NPOA-S process by estimating the seabird bycatch at the Patagonian toothfish fishery in ... species caught was the black-browed albatross (96% of total birds). Considering the monthly fishing effort ... determined the initiation of the NPOA to reduce seabird incidental mortality in all longline fisheries in ... Chile, which is being developed during 2004 with the close collaboration of all industrial fishery ...

   Meeting Document : WG-FSA-04/13 : Auteur(s): J. Arata, C.A. Moreno and R. Hucke-Gaete (Chile)

4. Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models

   in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... mortality, age selectivity, recruitment estimates, mean weight at age) In the calculations with DPM (with ... estimates by years of fishing. Both models showed that the D. eleginoides stock status at the initial period ... of intensive fishery was at the level of 22-24 thousand tons. In 1989-1990 stock size increased (to ...

   Meeting Document : WG-FSA-02/78 : Auteur(s): P.S. Gasiukov and R.S. Dorovskich (Russia)

5. Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997

   around the Elephant Island. However, the values especially R1 in this study were extremely smaller than ... Siegel et al. (1 998)'s values. This may be due to the net selectivity and/or incomplete coverage of ... the distribution of small krill by commercial fisheries. Inter-annual pattern of R1 and R2 in Subarea ... 48.2 showed somewhat similar pattern to Subarea 48.1. However, because of inconsistency of the ...

   Meeting Document : WG-EMM-98/33 : Auteur(s): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)

6. A perspective on steepness, reference points, and stock assessment

   these patterns. For the production model, we derive explicit relationships for steepness and life ... history parameters and then for steepness and major reference points. For the age-structured model, we are ... required to generally use numerical computation, and so we provide an example that complements the ... analytical results of the production model. We discuss what it means to set steepness equal to 1 and how to ...

   Meeting Document : WG-FSA-14/P05 : Auteur(s): M. Mangel, A.D. MacCall, J. Brodziak, E.J. Dick, R.E. Forrest, R. Pourzand and S. Ralston

7. Unmanned Aerial Vehicles based monitoring of indicator species populations on King George Island (Subarea 48.1)

   the austral summer 2014/15 season. During photogrammetric flights the high-resolution images of the ... compared with the results of measurements taken at the same time from the ground level. During expedition ... ) less than 5 cm. Precision estimation of individuals count was based on the photo interpretation of ... images. The use of UAV for monitoring of indicator species, enabled data acquisition from areas ...

   Meeting Document : WG-EMM-15/48 : Auteur(s): M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, A. Kidawa and A. Znój (Poland)

8. SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY

   of that kind. The present study attempts to implement this estimator in the form of a parametric ... the R language for statistical computing (R Development Core Team 2008). Software is reliant on data ... this kind are accommodated, such as availability and perception bias, as well as many of the vagaries ... to a common reference point of breeding chronology. Equally important was the idea that estimates of ...

   Meeting Document : WG-EMM-PSW-08/11 : Auteur(s): J.P. McKinlay and C.J. Southwell (Australia)

9. Modelling krill recruitment

   Abstract:  A method is developed for using observed values of the mean proportion of recruits and ... its variance to model recruitment in a krill population in terms of numbers of recruits. The method ... includes the calculation of natural mortality and other parameters consistent with the observed ... which are consistent with the statistical uncertainty in the observed recruitment parameters. Author(s ...

   Meeting Document : WG-KRILL-93/13 : Auteur(s): W. de la Mare (Australia)

10. Atelier de renforcement des capacités de l'Afrique face à la pêche INN et dépenses couvertes par le fonds du SDC – compte rendu à la XXXIe réunion de la CCAMLR

    /B, paragraph B2(ix) on the proposal for an African capacity-building workshop aimed at combating IUU ... fishing to be funded through the CDS Fund.  The proposal was submitted to CCAMLR-XXX in working paper ... CCAMLR-XXX/33. Author(s):  Delegations of Australia, South Africa, the United Kingdom and the Secretariat ... Title:  African IUU capacity-building workshop and expenditure from the CDS fund – Report to CCAMLR-XXXI ...

    Meeting Document : CCAMLR-XXXI/37 : Auteur(s): Delegations of Australia, South Africa, the United Kingdom and the Secretariat

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