Résultats de la recherche

1. Non-native Species in the Antarctic: Report of a Workshop

   Abstract:  Worldwide, invasive alien species are contributing to a global biodiversity crisis. In ... and Antarctica, in April 2006. The outcomes to the workshop were presented in a series of papers to ... to consider the findings of the “Non-native Species in the Antarctic” Workshop, and consider actions ... activities within CCAMLR’s purview. In light of the requirements of Article II of the Convention, the ...

   Meeting Document : SC-CAMLR-XXV/BG/21 : Auteur(s): Delegation of New Zealand

2. 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)

3. 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)

4. 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)

5. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

   omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ... . At each center frequency (fc), the coherent energy in 200-pulse ensembles identified sound scattered ... each fc was extracted from a correlation analysis of energy reverberated in the tank. Measurement ... accuracy was determined using standard metal spheres for references [Demer et al., in-press, J. Acoust. Soc ...

   Meeting Document : WG-EMM-02/49 : Auteur(s): D.A. Demer and S. G. Conti (USA)

6. Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48

   limit on krill (Euphausia superba) in Statistical Area 48. The measure also implies the application in ... , and (vi) the potential for delay in implementing the alternative. An alternative is less likely to ... practical in the near future. Alternatives based on continental shelf area, simple pulse fishing, and krill ... surveys are not biologically explicit and result in delayed implementation. None of the alternatives are ...

   Meeting Document : WG-EMM-01/29 : Auteur(s): G. Watters and R. Hewitt (USA)

7. VNIRO program on remote monitoring of oceanographic conditions in fishing areas of the World Ocean (the southwestern Atlantic and the southeastern Pacific)

   dynamics of the sea surface temperature (SST) in fishing areas For various time intervals (week, month ... , year, etc.). Sample monitoring of fishing areas in the south-western Atlantic and the southeastern ... interannual variability of SST; results of comparison of maps of monthly mean SST in various years and mean ... their analyses in the process of estimation and development of the forecast of fishing conditions are ...

   Meeting Document : WG-EMM-98/14 : Auteur(s): G.P. Vanyushin, T.B. Barkanova and A.A. Troshkov (Russia)

8. 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.

9. 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 ... 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 ... distribution of the population from the survey data which, in conjunction with the bootstrapped survey biomass ...

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

10. 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.

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