Résultats de la recherche
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Entanglement of Antarctic fur seals (Arctocephalus gazella) by man made debris at Bird Island, South Georgia, during the 2005 winter and 2005/06 breeding season
reported here. Two entanglements were observed in the winter, a decrease of 60% from the previous year, and ... the lowest number seen since records began in 1990. One of these involved a male pup entangled in ... occurred to an adult female entangled in a plastic packing band causing slight constriction to the ... individual involved. In contrast there was double the number of observed entanglements during summer of 2005 ...
Meeting Document : SC-CAMLR-XXV/BG/13 : Auteur(s): Delegation of the United Kingdom
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Do Adélie penguin fledgling weights provide an index of prey availability?
Abstract: We examine fledgling weights measured over 11 years at Béchervaise Island in relation ... as strong for the crèche foraging trips later in the season. Fledgling weights which are measured at ... crèche stages of the breeding season. In some seasons, there appeared to be constant levels of resources ... throughout the breeding season resulting in good breeding success with heavy fledglings or poor breeding ...
Meeting Document : WG-EMM-05/21 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)
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Development of best practices for the collection of longline data to facilitate research and analysis to reduce by-catch: report of a workshop held at the International Fisheries Observer Conference
, sea turtles, and seabirds in longline fisheries, a workshop was organized to develop “best practices ... ” in observer data collections. The workshop was held in conjunction with the International Fisheries ... Observer Conference, November 8-11, 2004, in Sydney, Australia. The objectives of the workshop were to ... observer data collection in longline fisheries that would facilitate research and analysis to reduce ...
Meeting Document : WG-FSA-05/45 : Auteur(s): K.S. Dietrich, K.S. Rivera, V. Cornish and T. Conant (USA)
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Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic expedition (January–February 2000)
of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... , in the area north of Continental Shelf, was 9.3 g/1000m3 of filtered water with a mean density of ... 10.9 individuals per 1000m3. Ice krill Euphausia crystallorophias replaced the Antarctic krill in ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 g/1000m3 and mean ...
Meeting Document : WG-EMM-02/32 Text : Auteur(s): A. Sala, M. Azzali and A. Russo (Italy)
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Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia
breeding in tussock grassland at sub-Antarctic islands. Over the last decade it has been killed in large ... numbers in temperate and sub-tropical longline fisheries. However, no data are available on the global ... the distributioin and density of occupied burrows in 1981 and 1998. In both surveys white-chinned ... petrel burrows occurred in one-quarter of the 460–47736-m2 quadrats surveyed. The total number of burrows ...
Meeting Document : WG-FSA-01/26 Rev. 1 : Auteur(s): S.D. Berrow, J.P. Croxall and S.D. Grant (United Kingdom)
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Examination of the gut contents of Patagonian toothfish (Dissostichus eleginoides) from the toothfish pot fishery trials around South Georgia
, (Dissostichus eleginoides), represents an important target species for fisheries not only in the study area ... around South Georgia (CCAMLR Sub-area 48.3), but also in other CCAMLR areas. To improve the knowledge on ... during the toothfish pot fishery trials undertaken in the area during the period March to May 2000. 3,640 ... empty stomachs was greatly reduced in fish caught using pots rather than longlines, increasing sample ...
Meeting Document : WG-FSA-00/25 : Auteur(s): G. Pilling, T. Daw, M. Purves, D. Agnew and J. Xavier (United Kingdom)
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Detailed distribution of krill fishing around South Georgia
only been available to the scientific community in the form of sub-area or fine-scale(0.5 ° latitude by ... has operated they do not reveal the localised nature of the fishing operation. In particular they give ... . Over the last three winter fishing seasons (1993-1995) haul by haul statistics have been recorded in ... a seasonal pattern. In 1994 the fishery was almost totally based over a large shallow bank area on ...
Meeting Document : WG-EMM-96/64 : Auteur(s): Parkes, G., Everson, I., Trathan, P.N., Murphy, E.J.
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Krill fishery report: 2012 update
have fished for krill in Area 48; one vessel is using the continuous fishing system. The total catch ... reported to May 2012 was 78468 t, mostly taken from Subarea 48.1 in December, April and May. Seven vessels ... . In 2010/11, 13 vessels fished for krill in Area 48 and the total catch of krill was 180986 t; two ... Islands in Subarea 48.2 where a total of 111472 t of krill was taken from SSMU SOW (South Orkney West ...
Meeting Document : WG-EMM-12/05 : Auteur(s): Secretariat
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Preliminary analysis of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G, with comments on the sustainability of different harvest levels
in Subarea 48.6 north of 60°S (the combined SSRUs 48.6A and 48.6G). A preliminary assessment for D ... . mawsoni in Subarea 48.6 south of 60°S (the combined SSRUs 48.6B through 48.6E) is given in an Appendix. An ... to size via a simple von-Bertalanffy equation in which variance in catch-at-length for a given age is ... possible given the available information. Actual assumptions are set out in this document. CPUE data are ...
Meeting Document : WG-FSA-12/31 : Auteur(s): E. Thomson and M. Bergh (South Africa)
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A small unmanned aerial system for estimating abundance and size of Antarctic predators
studies, but can be difficult in remote settings such as Antarctica. Recent advances in the development of ... and testing in selecting a VTOL platform for use in remote, windy, perennially overcast settings ... predators in Antarctica, based upon 65 missions flown in 2010/2011 (n = 28) and 2012/2013 (n = 37). We ... -powered VTOLs make them particularly useful in wildlife applications: (1) portability, (2) stability in ...
Meeting Document : WG-EMM-15/P06 : Auteur(s): M.E. Goebel, W.L. Perryman, J.T. Hinke, D.J. Krause, N.A. Hann, S. Gardner and D.J. LeRoi