Résultats de la recherche

1. Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences

   that attempts to breed in a given year. Changes in several demographic parameters that appear to be ... , suggesting common factors operating at an ocean-basin scale. The average survival rate of adult females was ... supplementary food being made available by the initiation of a longline fishery for Patagonian toothfish ... on neighbouring Possession Island (Crozet Islands) but differed from those at South Georgia ...

   Meeting Document : WG-EMM-03/11 : Auteur(s): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)

2. Evaluating MPA scenarios in Planning Domain 1 using a dynamic food-web model

   protected area (MPA) scenarios. We evaluate four MPA scenarios, including two representing portions of the ... proposed for protection might positively impact the biomass of krill and krill predators. Protection of ... these southern areas may be particularly important for ensuring a positive outcome from the D1MPA ... Status:  Content Approved Document Release Consent:  No Delegation responsibility for releasing documents ...

   Meeting Document : SC-CAMLR-XXXVII/BG/04 : Auteur(s): Delegation of the USA

3. Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands

   differed between shags from the two areas. Author(s):  E.R. Barrera-Oro and R.J. Casaux (Argentina) Title ... lengths, using equations derived from data on local populations. Fish remains were present in all casts ...

   Meeting Document : WG-CEMP-94/32 : Auteur(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)

4. Antarctic krill populations in the outflow region of the north-western Weddell Sea

   dominated by two and three year old krill. Spawning occurred late and numbers of gravid females and larvae ... was below the longterm average of the area. New one-year-old recruits were scarce, the stock was ... were low. Ice krill E. crystallorophias was abundant on the shelf of the north-western Weddell Sea ...

   Meeting Document : WG-EMM-13/24 : Auteur(s): V. Siegel (European Union)

5. Biological acoustic survey in the marginal ice edge zone of the Bellingshausen Sea

   Abstract:  An acoustic survey at 38 and 120 kHz was carried out from RRS Discovery in the ... using an echo integration system. These data are used to describe the spatial and temporal variability ... density varied from a mean of 42 g m-2 during the first survey phase to 19.6 g m-2 on the second survey ... phase. On this first survey a large swarm (2.8 km in extent) had a potential biomass of 3.7 x 104 tonnes ...

   Meeting Document : WG-Krill-94/32 : Auteur(s): A.W.A. Murray, J.L. Watkins and D.G. Bone (United Kingdom)

6. Diet composition of Champsocephalus gunnari in Subarea 48.3, Dr Eduardo Holmberg survey, February/ March 1994

   Georgia, in parallel with the virtual absence of mysids and Thysanoessa spp.. Krill was available for fish ... of empty stomachs were found at South Georgia and Shag Rocks, close to the values reported for the ... 1991 year of krill "shortage". Besides, the tentative analysis of part of the samples using ... available for comparison. No krill aggregations were found in the region by acoustic methods in the 1994 ...

   Meeting Document : WG-FSA-94/27 : Auteur(s): E. Barrera-Oro, R. Casaux and A. Roux (Argentina)

7. Estimation of the biomass of krill in Prydz Bay during January/February 1991, February/March 1992 and January/ February 1993 using echo integration

   et al. 1988). The distribution of the Sa values for the lower biomass years 1992 and 1993 were ... , 3.45 and 1.78 g/m2 for statistical areas 48.1,48.2 and 48.3 (SC-CAMLR 1991, p47)but small compared to ... 20.2 g/m2 estimated for January 1985 from the SIBEX-II data. The Australian SIBEX-II estimate falls in ... similar and distinctly different from the higher biomass year of 1991. The difference is characterised by ...

   Meeting Document : WG-Krill-94/21 : Auteur(s): T. Pauly and I. Higginbottom (Australia)

8. Demography of the Korean blue crab, Portunus trituberculatus fishery exploited in the west coast of Korea and the East China Sea

   of this fish stock was estimated to be about 22,400 tonnes per year and Fmsy to be 0.95. Author(s ... ):  J.-U. Lee and D.-H. An (Republic of Korea) Title:  Demography of the Korean blue crab, Portunus ...

   Meeting Document : WS-CRAB-93/20 : Auteur(s): J.-U. Lee and D.-H. An (Republic of Korea)

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

   , Antarctica, and aboard R/V Yuzhmorgeologiya. Chirp pulses were sequentially transmitted with an ... accuracy was determined using standard metal spheres for references [Demer et al., in-press, J. Acoust. Soc ... ): 1273-1294], which has been enhanced to account for the stochastic nature of sound scattering (SDWBA ... ). This study improves upon methods for acoustical identification and target strength estimation for ...

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

10. Developments, considerations and recommendations by the land-based predator survey correspondence group: a second summary and update

    since 2006. In particular, some general principles for estimating predator demand are outlined, and ... draft terms of reference for a workshop in 2008 presented. Author(s):  C. Southwell (Australia), P ...

    Meeting Document : WG-EMM-07/20 : Auteur(s): C. Southwell (Australia), P. Trathan (UK), W. Trivelpiece, M. Goebel (USA) and P. Wilson (New Zealand)

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