Résultats de la recherche
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Supplementary data on exploited stocks in Division 58.5.1 (Kerguelen)
/ Description: The results of fishing cruises carried out from 1986/87 to 1988/89 in Division 58.5.1 (Kerguelen ... Island) have made possible a review of the status of the various harvested fish stocks. Since 1984, an ... average annual growth of 36% has been noted in the abundance of the juvenile section of the stock of ... Notothenia rossii, a species which is at present only fishable as a by-catch. The total biomass of the stock ... DIVISION 58.5.1 (KERGUELEN) G. Duhamel Abstract The results of fishing cruises carried out from 1986 ... /87 to 1988/89 in Division 58.5.1 (Kerguelen Island) have made possible a review of the status of ... the various harvested fish stocks. Since 1984, an average annual growth of 36% has been noted in the ... abundance of the juvenile section of the stock of Notothenia rossii, a species which is at present only ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 147–161 : Auteur(s): Duhamel, G.
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Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
Abstract: The depletion-corrected average catch (DCAC) formula is an extension of the potential ... -yield formula, and it provides useful estimates of sustainable yield for data-poor fisheries on long ... biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ... production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ...
Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall
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Draft integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
the end of 2019 and observations until the end of 2018. The updated assessment model is based on the ... best available estimates of model parameters, the use of abundance estimates from a random stratified ... -2018, and auxiliary commercial composition data to aid with the estimation of year class strength and ... selectivity functions of the trawl, longline and trap sub-fisheries. Compared to the 2017 assessment that was ...
Meeting Document : WG-FSA-2019/32 : Auteur(s): P. Ziegler
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Beach debris survey – Main Bay, Bird Island, South Georgia 1998/99
Abstract: The ninth year of surveys of beach man-made debris at Bird Island, South Georgia ... revealed a total of 213 items, 51% less than the total of 430 items in 1997/98 and the second lowest total ... 1990. The number of items collected in the summer was 172, a decrease of 45% from the 1997/98 total of ... 310. Nylon line, identical to that attached to longline gear, accounted for 51 % of items.The lower ...
Meeting Document : SC-CAMLR-XIX/BG/05 : Auteur(s): Delegation of the United Kingdom
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REPORT ON THE ABANDONED GILLNET RETRIEVAL OPERATION CONDUCTED BY AUSTRALIA IN CCAMLR STATISTICAL DIVISION 58.4.3B (BANZARE BANK)
gillnets as a fishing method to target toothfish in the Convention area. Estimating the impact of IUU ... fishing is hampered by a lack of data on the design, deployment, catch and bycatch rates of gill nets ... (Statistical Division 58.4.3b), and the toothfish and bycatch found when a section of the gillnet was retrieved ... . Based on the amount of toothfish found in the 8 km long section of net retrieved, upwards of 29 tonnes ...
Meeting Document : TASO-09/10 : Auteur(s): Snowdon, D., Hamill, J., McEachan, F., Welsford, D.
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CCAMLR Strengthens Marine Conservation in Antarctica
Antarctica Special Meeting for the Establishment of MPAs in Antarctica The Commission for the Conservation of ... , resulting in new measures strengthening marine conservation in the Southern Ocean. Main outcomes of CCAMLR’s ... of measuring live catch will improve the accuracy of catch data, which accordingly will improve ... setting catch limits. A feed-back management system for krill fisheries, using real-time abundance of ...
Page : Site Section: The Organisation
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CCAMLR Strengthens Marine Conservation in Antarctica
Antarctica Special Meeting for the Establishment of MPAs in Antarctica The Commission for the Conservation of ... , resulting in new measures strengthening marine conservation in the Southern Ocean. Main outcomes of CCAMLR’s ... of measuring live catch will improve the accuracy of catch data, which accordingly will improve ... setting catch limits. A feed-back management system for krill fisheries, using real-time abundance of ...
Page : Site Section: The Organisation
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CCAMLR Strengthens Marine Conservation in Antarctica
Antarctica Special Meeting for the Establishment of MPAs in Antarctica The Commission for the Conservation of ... , resulting in new measures strengthening marine conservation in the Southern Ocean. Main outcomes of CCAMLR’s ... of measuring live catch will improve the accuracy of catch data, which accordingly will improve ... setting catch limits. A feed-back management system for krill fisheries, using real-time abundance of ...
Page : Site Section: The Organisation
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CCAMLR Strengthens Marine Conservation in Antarctica
Antarctica Special Meeting for the Establishment of MPAs in Antarctica The Commission for the Conservation of ... , resulting in new measures strengthening marine conservation in the Southern Ocean. Main outcomes of CCAMLR’s ... of measuring live catch will improve the accuracy of catch data, which accordingly will improve ... setting catch limits. A feed-back management system for krill fisheries, using real-time abundance of ...
Page : Site Section: The Organisation
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CCAMLR Strengthens Marine Conservation in Antarctica
Antarctica Special Meeting for the Establishment of MPAs in Antarctica The Commission for the Conservation of ... , resulting in new measures strengthening marine conservation in the Southern Ocean. Main outcomes of CCAMLR’s ... of measuring live catch will improve the accuracy of catch data, which accordingly will improve ... setting catch limits. A feed-back management system for krill fisheries, using real-time abundance of ...
Page : Site Section: The Organisation