Résultats de la recherche

1. Foraging partitioning between giant petrels Macronectes spp. and its relationship with breeding population changes at Bird Island, South Georgia

   species of giant petrels, Macronectes halli and M.giganteus, breeding sympatrically at Bird Island (South ... ref1ected in their recent population increase at South Georgia. Foraging areas of giant petrels overlapped ... Abstract:  We tracked by satellite the foraging trips of males and females of the two sibling ... Georgia, Antarctica), during the incubation period (November-December). Size of the activity range as well ...

   Meeting Document : WG-FSA-99/39 : Auteur(s): J. González-Solís, J.P. Croxall and A.G. Wood (United Kingdom)

2. A updated population status model for the Patagonian toothfish, Dissostichus eleginoides, at Kerguelen Islands (Division 58.5.1) using CASAL

   Abstract:  A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... , standardized CPUE of commercial fisheries, tag releases and recoveries by length bin,  commercial catch-at ... integrated using the effective sample sizes calculated at the level of each haul. An iteratively estimated ... of fishing vessels (trawlers, longliners). The fishing zone for the longliners is divided into four ...

   Meeting Document : WG-FSA-12/09 : Auteur(s): A. Rélot-Stirnemann (France)

3. Oil, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia 1995/96

   Abstract:  In the third year of standardised recording of oil, fishing gear and marine debris at ... packaging band; another (uncut) band was found at a nest of a northern giant petrel. Parts of fishing gear ... albatrosses (one bird impaled with a long-line hook, another hook found at a nest) and wandering albatrosses ... hooks and lines regurgitated beside nests). Levels of plastic debris in fishing gear associated with ...

   Meeting Document : SC-CAMLR-XV/BG/04 : Auteur(s): Delegation of the United Kingdom

4. Problems in estimating population length at age from commercial catches, the Patagonian toothfish as an example

   Abstract:  Age based fishery population models require information on size at age of the fished ... commercial catches. This information does not necessarily reflect the size at age of the fished population ... example, a method is developed to estimate size at age of the population using information collected from ... population and the commercial catch. Age-length keys can be produced by standardised random sampling of the ...

   Meeting Document : WG-FSA-01/17 : Auteur(s): I. Everson (United Kingdom)

5. Krill length and age at maturity

   calculate length and age at maturity for the Antarctic krill Euphausia superba. L50 values of 34.62 to 35.90 ... identical for krill. Comparisons with length at age data show that females mature in the third year of the ... later at a length between L50 = 43.33 and 43.79 mm. Length at maturity, and length at first spawning are ... age at maturity Approval:  Approved ...

   Meeting Document : WG-KRILL-93/40 : Auteur(s): V. Siegel (Germany) and V. Loeb (USA)

6. Monitoring krill population variability using seabirds and seals at South Georgia – new samplers provide new insights

   distribution and abundance of a single dominant zooplankton species, Antarctic krill Euphausia superba. At ... of predators at temporal scales not available using conventional (i.e. ship based) sampling methods ... growth and mortality in generating the high amplitude of variability in krill abundance at South Georgia ... frequently detected in the response of upper-trophic level predators. Analysis of the changes in the ...

   Meeting Document : WG-EMM-04/63 : Auteur(s): K. Reid, E.J. Murphy, J.P. Croxall and P.N. Trathan (United Kingdom)

7. Marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1994/95

   of the very low breeding numbers of mollymawks at Bird Island in 1994/1995 and, second, because the ... recording year at Bird Island. Author(s):  Delegation of the United Kingdom Title:  Marine debris and ... Abstract:  This report describes and quantifies the occurrence of marine debris and fishing gear ... number of plastic debris items and fishing hooks and lines found. Although this result is encouraging ...

   Meeting Document : SC-CAMLR-XIV/BG/09 : Auteur(s): Delegation of the United Kingdom

8. CEMP cameras data validation experiment at the Galindez Island gentoo penguins (Pygoscelis papua) colonies

   lapse cameras of the CEMP camera monitoring project of CCAMLR at Galindez Island gentoo colonies. During ... Abstract:  We inform on the results of data validation experiment provided for pictures from time ... the 2017-2018 season biologists winterers at Vernadsky station, situated at Galindez Island, provided ... continuous observations every day of gentoo nests in the three sites where automatic time lapse cameras ...

   Meeting Document : WG-EMM-18/26 : Auteur(s): A. Dzhulay, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyy and L. Pshenichnov

9. Fishing equipment, marine debris and hydrocarbon soiling associated with seabirds at Bird Island, South Georgia, 2005/06

   exception of black browed albatross. Entanglements continue to be observed at a rate similar to that of ... occurrence of debris and fishing gear at Bird Island remains substantially lower than during a peak that ... Abstract:  This report describes and quantifies occurrences of fishing gear, marine debris and oil ... associated with seabirds at Bird Island, South Georgia from 1 April 2005 to 31 March 2006. It is the ...

   Meeting Document : SC-CAMLR-XXV/BG/11 : Auteur(s): Delegation of the United Kingdom

10. Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2004/05

    Abstract:  The eighth complete consecutive season of data collection at Cape Shirreff has enabled ... decline over the past six years, and is at its lowest size in the past eight years of study, and fledging ... diet, and foraging behaviour. The chinstrap breeding population at Cape Shirreff has continued to ... success was poor compared to earlier years of study. The gentoo breeding population, in contrast, has ...

    Meeting Document : WG-EMM-05/9 : Auteur(s): A.K. Miller, E. Leung and W.Z. Trivelpiece (USA)

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