Résultats de la recherche

1. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99

   males, the main component of the population at this time of year. The number of sightings increased by ... parallel study undertaken at Bird Island, South Georgia in 1998/99. These indicated that the number of ... of fur seals was entangled in packaging bands at Signy Island (67%) than at Bird Island (38 ... %). Entanglements in packaging bands at Signy Island were 47% higher than the previous season. There were no reports ...

   Meeting Document : SC-CAMLR-XVIII/BG/06 : Auteur(s): Delegation of the United Kingdom

2. Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... role in Antarctic food chains, very little is known of many ecological and biological aspects of this ... during the New Zealand International Polar Year Census of Antarctic Marine Life research voyage on R.V ... . Tangaroa in February–March 2008. Multi-frequency acoustic data (12, 38, 70 and 120 kHz) allowed ...

   Meeting Document : WG-FSA-10/P04 : Auteur(s): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet

3. Evaluating methods to assess yield of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Division 58.5.2

   developed to evaluate possible management strategies for the Patagonian toothfish fishery in Division 58.5.2 ... currently being used for Patagonian toothfish in Division 58.5.2, the types of data and observations of the ... Subgroup on Assessment Methods workshop to be held prior to the meeting of WG-FSA in 2005. These results ... will be presented in an updated version of this paper provided to the workshop. Author(s):  A.J ...

   Meeting Document : WG-FSA-05/69 : Auteur(s): A.J. Constable, I. Ball, B. Raymond, S. Candy, R. Williams (Australia) and A. Dunn (New Zealand)

4. Accounting for food requirements of seabirds in fisheries management – the case of the South African purse-seine fishery

   Abstract:  In South Africa, four seabirds that feed mainly on sardine Sardinops sagax and anchovy ... requirements have not been accounted for in management of the purse-seine fishery on sardine and anchovy. Means ... conservation status of a species may prove useful in determining minimum viable populations, and that the use ... of functional relationships in coupled models of predators and their prey may enable quantification ...

   Meeting Document : WG-EMM-04/28 : Auteur(s): R.J.M Crawford (South Africa)

5. Preliminary analyses of data collected during experimental fishing for Patagonian toothfish in international waters of the southwest Indian Ocean (Area 51)

   procedures, in a restricted area south of Madagascar and north of the Prince Edward and Marion Islands and ... and 1950 metres depth. The Patagonian toothfish appeared in all those sets carried out with values ... of the main ground, in which a residual recruitment effect persists. The total CPUE was 42.21 kg/1000 ... hooks. Depth is the most important factor in Patagonian toothfish distribution within the study area ...

   Meeting Document : WG-FSA-04/19 : Auteur(s): L.J. López Abellán (Spain)

6. 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 ... . Based on the amount of toothfish found in the 8 km long section of net retrieved, upwards of 29 tonnes ... gillnets. However these figures are likely to be underestimates of total mortality in gillnets, due to the ... evidence of large numbers of sea-lice depredated fish in the net. Author(s):  Snowdon, D., Hamill, J ...

   Meeting Document : TASO-09/10 : Auteur(s): Snowdon, D., Hamill, J., McEachan, F., Welsford, D.

7. LENGTH-BASED ASSESSMENT FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3

   Abstract:  The current assessment method for the mackerel icefish (Champsocephalus gunnari) in sub ... numbers forward under the given harvest control rule to set a two-year TAC. One issue is the accurate ... identification of cohorts from the survey model, given the differential age structures observed in the population ... at Shag rocks and around South Georgia. In this paper we propose a length-based approach that removes ...

   Meeting Document : WG-SAM-09/15 : Auteur(s): R.M. Hillary, D.J. Agnew and R. Mitchell (United Kingdom)

8. USING GENERALIZED DISSIMILARITY MODELLING TO ANALYSE AND PREDICT PATTERNS OF BETA DIVERSITY IN REGIONAL BIODIVERSITY ASSESSMENT

   predicting spatial patterns of turnover in community composition (beta diversity) across large regions. The ... nonlinearity commonly encountered in large-scaled ecological data sets: (1) the curvilinear relationship ... ) the variation in the rate of compositional turnover at different positions along environmental ... assessment activities including visualization of spatial patterns in community composition, constrained ...

   Meeting Document : WS-VME-09/P03 : Auteur(s): Richardson, K., Manion, G., Ferrier, S., Elith, J.

9. A methodological proposal to monitor changes in coastal fish populations by the analysis of pellets of the blue-eyed shag Phalacrocorax atriceps

   Abstract:  A proposal to monitor changes in coastal fish populations is presented in this document ... . The methodology considered is based in the analysis of regurgitated pellets of the blue-eyed shag ... changes in coastal fish populations by the analysis of pellets of the blue-eyed shag Phalacrocorax ...

   Meeting Document : WG-EMM-95/84 : Auteur(s): Barrera-Oro, E., Casaux, R.

10. Conditions for the precise measurement of fish target strength in situ

    Abstract:  Conditions for precise measurement of in situ fish target strength (TS) are empirically ... studied and two indexes are introduced for this purpose. One is the number of fish in the effective ... obtained from one large same fish school in the eastern shelf of Bering sea during the intership ... calibration between Japanese and U.S. vessels on 15 and 16 August 1991. Published in J.Mar.Acoust.Soc. Author ...

    Meeting Document : WG-Krill-94/35 : Auteur(s): K. Sawada and M. Furusawa (Japan), N.J. Williamson (USA)

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