Résultats de la recherche

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

   gave accurate estimators of an ESS that is appropriate for haul-level heterogeneity with increasing ... , 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 ... data to be input as the total yearly frequency in the form of class proportions com- bined with the ... aggregation of fish that the jth haul samples with a size-mj random sample of fish, then the number of ... fish in each class, Nj, with realisa- tion nj = (nj,1,…,nj,A), conditional on mj and πj can be ... ′ can be obtained. This estimator of ϕy assumes that, for each year considered independently, the haul ...

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

2. The diet of the blue-eyed shag Phalacrocorax atriceps at Laurie Island, South Orkney Islands, as reflected by the analysis of stomach contents collected throughout the breeding season

   Peninsula, South Orkney Islands, from 2 January to 18 February 1995, showed that fish were by far the main ... throughout the breeding season according to changes in the chicks' energetic demands. The results are ... compared to those obtained previously in the area and the possibility that the stomach contents primarily ...

   Meeting Document : WG-EMM-95/81 : Auteur(s): Coria, N., Barrera-Oro, E., Casaux, R.

3. REPORT ON AUSTRALIAN VMS TRIAL IN THE CCAMLR AREA

   fishing activities of its vessels and that VMS offers a range of capabilities that cannot be readily ... individual fishers are detailed, together with the operational costs of VMS equipment. A range of conclusions ... are drawn from the trial; notably that VMS is a cost effective measure for a flag State to monitor ... achieved by other means. The paper recommends that all CCAMLR Members implement VMS and, through its use ...

   Meeting Document : CCAMLR-XVI/BG/7 : Auteur(s): Delegation of Australia

4. Management of VMS information by the Secretariat concerning catches of Patagonian toothfish beyond the Convention Area

   their markets, that VMS reports by vessels that capture toothfish be transmitted previously and in real ... proposes that when Contracting States voluntarily report the activities performed in waters beyond the ... jurisdiction of the Convention, the Secretariat should ensure that such information is being loaded into the ... . This is proposed to be carried out through a modification of Conservation Measure 10-04 (2007) in ...

   Meeting Document : CCAMLR-XXIX/46 : Auteur(s): Delegation of Chile

5. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

   chlorophyll a. Water circulation was studied with satellite-tracked buoys equipped with curtain drogues ... distributions of krill and chlorophyll a was observed. It is therefore considered that both hydrodynamic and ... food availability factors may be responsible for krill concentration. On a traditional fishing ground ... 54% lower than that observed in late January 1988. Information from studies of krill predators by US ... circulation was studied with satellite-tracked buoys equipped with curtain drogues deployed at a level of 30 ... laill and chlorophyll a was observed. It is therefore considered that both hydrodynamic and food ... availability factors may be responsible for lain concentration. On a traditional lain fishing ground north of ... that observed in late January 1988. Information from studies of krill predators by US scientists also ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu

6. Fishery Report 2017: Champsocephalus gunnari South Georgia (Subarea 48.3)

   Trawls observed Thalassarche chrysostoma T. melanophrys Procellaria aequinoctialis Other 2001 ... . Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... interannual variations in krill abundance. Spawning takes place in shallow water, with eggs laid on the ... seafloor. Larvae are pelagic and may be caught in coastal areas during late winter. Icefish predators ...

   Document : Site Section: Publications

7. A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies

   using a von Bertalanffy (VB) growth model taking into account response-biased sampling of fish that were ... assuming normal errors with constant coefficient of variation using iteratively weighted least squares ... using VP maximum likelihood (MLP) with length-bin relative probabilities defined using fishing ... developed and showed that the bias is relatively small for the range of release lengths in the data ... with this approach is that freedom from bias in the estimated VB parameters is dependent on the other ... probabilities may be involved in selecting fi sh from the LF sample. One sampling scheme that could be used is ... the on-deck LF sample with the particular implementation of general RS sam- pling that is described ... assumed to be known for this study, with its most important feature being a sharp decline in selectiv ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Auteur(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams

8. Reproduction in the Antarctic icefish Champsocephalus gunnari and its implications for fisheries management in the Atlantic sector of the Southern Ocean

   females. Fjords have been reported to be important spawning grounds. Fecundity is highest around South ... other exploited species could be best protected by the establishment of permanent closed fishing season ... from 1 March to the end of each year's meeting of CCAMLR. Author(s):  Delegation of Federal ...

   Meeting Document : SC-CAMLR-VIII/BG/16 : Auteur(s): Delegation of Federal Republic of Germany

9. Propositions sur les exigences concernant le développement des plans de recherche et de suivi des aires marines protégées

   the RMP. These proposals reflect the Russia Federation's position regarding the establishment of ... proposed to approve a unified approach to the development and operation of RMPs which could be attached as ... and the assessment of their effectiveness must be an integral part of a unified approach. Author(s ...

   Meeting Document : SC-CAMLR-38/11 Rev. 1 : Auteur(s): Делегация Российской Федерации

10. Version préliminaire des mesures de conservation 2019/20 adoptées à la 38e réunion de la CCAMLR

    vessels proposing to participate in the fishery, with the exception that the notification shall not be ... that the fishery can and will be conducted in accordance with the principles set forth in Article II ... proposing to participate in the fishery, with the exception that the notification shall not be required to ... , these activities were carried out in accordance with CCAMLR conservation measures, and that if it ...

    Document : Site Section: Conservation and Management

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