Résultats de la recherche

1. The Norwegian SWARM project: from swarming behaviour to trophic interactions: modelling dynamics of Antarctic krill in ecosystem hotspots using behaviour-based models

   Abstract:  Norway is in the process of extending its monitoring efforts in the area around South ... Orkneys by deploying acoustic moorings in a commercially exploited area. Data gathered from the moorings ... will be used to parametrise models, in order to gain better understanding of the interaction between ... ocean physics and behaviour in driving krill biomass variation in the area. Author(s):  T.A. Klevjer, G ...

   Meeting Document : WG-EMM-17/26 : Auteur(s): T.A. Klevjer, G. Rieucau, A.H.H. Renner, G. Skaret and O.R. Godø

2. STRUCTURE OF THE WATER MASSES AND KRILL DISTRIBUTION IN THE CENTRAL AND EASTERN PARTS OF THE ATLANTIC ANTARCTIC AREA

   Abstract:  The data of 18 expeditions fulfilled by AtlantNIRO during 1970-2000 in the central and ... with reference to the structure and dynamics of the water masses in the area of the Southern Sandwich ... coastal zone of the Antarctic. It was demonstrated that in these areas in the frontal zone of the Weddell ... circulation and in the area of the Antarctic nearshore current the oceanographic conditions appeared favorable ...

   Meeting Document : WG-EMM-11/24 : Auteur(s): V.N. Shnar and S.M. Kasatkina (Russia)

3. The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary

   Abstract:  An exploratory fishery for Antarctic toothfish (D. mawsoni) has been in operation for ... six seasons in Subarea 88.1 and for two seasons in Subarea 88.2. A large amount of data on both ... is to present the analysis of data collected in the toothfish fishery for the 2003 season (this is ... presence of the huge C2 iceberg severely altered the fisher's behaviour in 2003. The vessels were ...

   Meeting Document : WG-FSA-03/44 : Auteur(s): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)

4. Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic

   Abstract:  Variability in the reproductive performance of marine predators may be a result of ... to link variability in predator performance with specific measurements of oceanographic variability ... . This study examined variation in the foraging behavior of lactating Antarctic fur seals (Arctocephalus ... gazella) over 15 years at the island of South Georgia in relation to major indices of southern hemisphere ...

   Meeting Document : WS-AREA 48-98/16 : Auteur(s): I.L. Boyd (UK)

5. Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2010–11

   Abstract:  Descriptive analyses of the toothfish tagging programme in Subareas 88.1 and 88.2 are ... recaptured since 2001. In recent years, most vessels have achieved or exceeded the target tagging rate of one ... toothfish per tonne of catch in the Ross Sea region. Tag recapture data showed that most fish are recorded ... one to SSRU 88.1I. In addition, several fish moved long distances on the slope and the shelf, with ...

   Meeting Document : WG-FSA-11/46 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

6. MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA

   ecosystem-based management of any krill fishery in the region. Krill acoustic density data from surveys ... conducted in the early, middle and late period of the summers of 2001 to 2005, together with krill ... dynamics model to evaluate potential mechanisms behind the observed changes in krill biomass. Krill ... abundance was highest during the middle of the summer in 3 years and in the late period in 2 years; in the ...

   Meeting Document : WG-EMM-08/48 : Auteur(s): K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)

7. The state of exploited fish stocks in the Atlantic sector of the Southern Ocean

   Abstract:  Finfish have been harvested in the Atlantic sector of the Southern Ocean since the end ... of the 1960s mainly by the Soviet Union. Notothenia rossii marmorata,vas the target species in the ... first peak years 1969-71 which yielded about 500,000 tonnes in 2 seasons around South Georgia. Since ... tonnes in 1976/77-1977/78, 1982/83-1983/84 and 1986/87-1987/88. N. rossii marmorata is the species most ...

   Meeting Document : SC-CAMLR-VIII/BG/18 : Auteur(s): Delegation of Federal Republic of Germany

8. New corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax atriceps

   necessary for the quantification of fish represented in pellets. These factors were obtained for Notothenia ... , Notolepis coatsi and Electrona antarctica were represented in pellets but not found in the stomach contents ... . Fish were the main prey and N. coriiceps and H. antarcticus were the dominant species both in mass and ... number. Observations on behaviour showed that the daily foraging trips per bird increased in number but ...

   Meeting Document : WG-EMM-95/83 : Auteur(s): Silva, P., Casaux, R., Favero, M., Barrera-Oro, E.

9. Fishing and conservation in southern waters

   Abstract:  Fishing in the Southern Ocean commenced on finfish in 1969/70 and on krill in 1972/73 ... the by-catch of juvenile fish in the krill fishery, to incidental mortality of birds during longline ... operations and the entanglement of seals in fragments of discarded or lost fishing gear. Most fish stocks had ... (CCAMLR) came into force in 1982. Stringent conservation measures to halt the further decline of the ...

   Meeting Document : SC-CAMLR-XII/BG/11 : Auteur(s): Delegation of Germany

10. Preliminary model of krill fishery behaviour in Subarea 48.1

    fishery in Subarea 48.1 and estimates the effort applied and the catch of krill in fine-scale squares ... March, compare favourably with the general distribution of catches in Subarea 48.1. A number of ... the management option of closing the zones around Livingston and Elephant Islands in alternate years ... would result in an average yearly catch similar to that at present, although the catch is much more ...

    Meeting Document : WG-KRILL-93/14 : Auteur(s): D.J. Agnew (Secretariat)

Pages