Résultats de la recherche
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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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VPA as one of the approaches for settling a problem of Patagonian toothfish, Dissostichus eleginoides, population quantity (Subarea 48.3, South Georgia)
Abstract: In order to avoid several problems associated with assessing the D. eleginoides stock ... in Subarea 48.3, it has been proposed to use the FAO programme ANACO (Mesnil, 1989) which allows one ... resorting to additional information on effort. VPBAS files for running the programme were created using our ... data as well as CCAMLR data. Some assumptions were made for this exercise. Assessments for the period ...
Meeting Document : WG-FSA-95/14 : Auteur(s): Shlyakhov, V.A.
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Status and trends of Adelie penguin populations in the Ross Sea region
Abstract: Aerial reconnaissance and photography were used in the Ross Sea sector of Antarctica to ... determine the breeding locations of Adé1ie penguins Pygoscelis adeliae, and to count the numbers of nests ... occupied during the early incubation period. From 1981 to 1987, all islands and sea coasts between 158°E ... Adé1ie rookeries are now known from the region, with a total of about 1,082,1300 breeding pairs – almost ...
Meeting Document : WG-CEMP-92/23 : Auteur(s): R.H. Taylor, P.R. Wilson and B.W. Thomas (New Zealand)
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A biomass estimate of Antarctic krill (Euphausia superba) at the Balleny Islands
Abstract: The biomass of Antarctic krill (Euphausia superba) at the Balleny Islands, Antarctica ... data processing followed the recommendations of CCAMLR SG-ASAM. Two parameterisations of the krill ... acoustic target strength model were used. The first parameterisation assumed a vertical orientation of ... krill, θ, as a normal distribution, mean = 11°, standard deviation = 4°, N(11,4), the second ...
Meeting Document : WG-EMM-15/17 Rev. 1 : Auteur(s): M.J. Cox (Australia), Y. Ladroit, P. Escobar-Flores and R.L. O’Driscoll (New Zealand)
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Information on incidental mortality of seabirds and other protected species in the US West Coast pelagic longline fishery
Abstract: Although the IATTC does not have an established observer program in its longline ... subject to pertinent US regulations as well as under the purview of IATTC. In response to a CCAMLR query ... observed in the US West Coast pelagic longline fishery was reported by the US in WG-FSA-02/39. Per a ... standing request from CCAMLR for information on incidental seabird mortality in fisheries adjacent to the ...
Meeting Document : WG-FSA-03/39 : Auteur(s): D. Petersen, L. Enriquez and S. Fougner (USA)
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Longterm monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
Abstract: Krill distribution and density are reviewed for the Elephant Island area with regard to ... the representativeness of the study area (60°- 62°30'S and 53°- 57°30 'W) for the ... recruitment and density indices. Recruitment indices were re-calculated applying the delta distribution ... approach introduced by de la Mare (1994a). The high interannual variability of krill recruitment is ...
Meeting Document : WG-EMM-96/45 : Auteur(s): de la Mare, W., Loeb, V., Siegel, V.
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DEVELOPMENT OF EFFECTIVE MITIGATION TO REDUCE SEABIRD MORTALITY IN THE ICEFISH (CHAMPSOCEPHALUS GUNNARI) TRAWL FISHERY IN SUBAREA 48.3
Abstract: Seabird mortality levels caused by net entanglement in the icefish trawl fishery in ... Subarea 48.3 became a concern in the late 1990s. At this time there was little knowledge on how to ... measures to reduce seabird bycatch levels. This resulted in the development and operational trialing of ... and simply applied mitigation measure and is thought to be largely responsible for the continued ...
Meeting Document : WG-IMAF-09/15 : Auteur(s): B. Sullivan (BirdLife International), J. Clark (United Kingdom), K. Reid (Secretariat) and E. Reid (BirdLife International)
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Large scale circulation in the South Atlantic: estimates from giant iceberg drift rates
Abstract: The paper reports work currently in progress and presents estimates for ocean ... circulation in the Scotia Sea. The estimates are derived from the drift rates of giant icebergs calved in the ... Weddell Sea since 1974. Comparison with other estimates is limited by the lack of studies reported in the ... (United Kingdom) Title: Large scale circulation in the South Atlantic: estimates from giant iceberg drift ...
Meeting Document : WS-Flux-94/06 : Auteur(s): P.N. Trathan and C. Symon (United Kingdom)
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Regional catch analysis of the longline fishery of Dissostichus eleginoides (Pisces: Nototheniidae) in Chile
Abstract: Capture statistic analyses from the different regions of Chile where fishery of ... statistics published by the SERNAP (National Fishery Service). It shows that activity has lasted few years in ... each geographic region considered. As captures have decreased in the northern zone, the artisanal fleet ... has migrated towards south, concentrating actually in the X Region of Chile and we attract attention ...
Meeting Document : WG-FSA-91/10 : Auteur(s): C. Lemaitre, P. Rubilar, P. Gebauer and C.A. Moreno (Chile)
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Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf
Abstract: Population structure and dynamics of the abundance of Notothenia rossii rossii on the ... Kerguelen Island shelf from the beginning of the fishery to 1984 has been examined.Total and commercial ... calculation by mathematical modelling.Comparative estimates of the abundance and recruitment-remainder ratio ... for the period of 1970-1984 have been presented, the average age of recruitment has been stated ...
Meeting Document : WG-FSA-90/41 : Auteur(s): P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR)