Résultats de la recherche

1. SUMMER SURVEY OF FUR SEALS AT PRINCE EDWARD ISLAND, SOUTHERN INDIAN OCEAN

   Abstract:  The onshore distributions and the abundances of Antarctic fur seals Arctocephalus ... the entire south-west coast of Prince Edward Island. Of the two colonies of Antarctic fur seals, the ... colony among Subantarctic fur seals north of Boggel Beach remained small, with increased numbers of ... remained free of Subantarctic fur seals and had expanded at a mean intrinsic rate of natural increase of ...

   Meeting Document : WG-EMM-10/P15 : Auteur(s): M.N. Bester, P.G. Ryan and J. Visagie

2. Changes in the foraging range of Adélie penguins as the breeding season progresses

   season of Adélie penguins nesting at Béchervaise Island on the Mawson coast of Eastern Antarctica. A ... decade’s worth of satellite tracking data was loaded into geographical information systems (GIS) software ... to produce maps of where the penguins travel to feed during each of the incubation, guard, crèche and ... pre-moult stages of the breeding cycle. 2. Penguins ranged furthest north during incubation and made ...

   Meeting Document : WG-EMM-04/57 : Auteur(s): J. Clarke and L. Emmerson (Australia)

3. Using digital video monitoring systems in fisheries: applications for monitoring compliance of seabird avoidance devices and seabird mortality in Pacific halibut longline fisheries

   Halibut Commission (IPHC) for a project examining the feasibility of electronic monitoring systems (EMS ... ) in the Pacific halibut longline fleet operating off the state of Alaska. The project was conducted on ... two of the IPHC stock assessment survey vessels fishing in Alaska during 2002. The objectives of the ... project were to: 1) examine the ability of an electronic monitoring system to provide images that would ...

   Meeting Document : WG-FSA-04/24 : Auteur(s): R.T. Ames, G.H. Williams and S.M. Fitzgerald (USA)

4. The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island

   this paper have similar power estimates because their estimates of temporal variability are comparable ... Abstract:  There are unresolved issues surrounding the use of power analyses for examining the ... ability of CEMP data to detect change. The effect size that should prompt a response if observed in a ... parameter and the likely response of parameters such as arrival or fledgling weights are two of these issues ...

   Meeting Document : WG-EMM-03/49 : Auteur(s): L.M. Emmerson and C. Southwell (Australia)

5. Distribution of the Soviet fishing fleet and catches (CPUE) in Subdivision 48.3 during 1986–1990

   Abstract:  Analysis of the fishing fleet operation is one of preconditions of krill fishery small ... -scale management units determination. In this work the available data of haul by haul catch statistics ... along the outside periphery of the doubling off- Island current of anticyclone pattern at the points of ... current (the western ground). Temporal-spatial variability of these grounds has been analyzed. The eastern ...

   Meeting Document : WG-EMM-02/63 Rev. 1 : Auteur(s): V.A. Sushin, P.C. Gasiukov, A.V. Zimin and S.M. Kasatkina (Russia)

6. Penguin foraging behavior in relation to the distribution of prey

   Abstract:  The diving behavior of 7 chinstrap penguins (Pygoscelis antarctica) (N=12,171 dives ... ) was measured concurrently with a hydroacoustic assessment of the vertical distribution and abundance ... of their primary prey, krill (Euphausia superba) in the vicinity of Seal Island, South Shetland ... migration pattern, being dispersed in the upper portion of the water column at night and more concentrated ...

   Meeting Document : WG-KRILL-93/47 : Auteur(s): D.A. Croll, R.P. Hewitt, D.A. Demer and J.K. Jansen (USA)

7. Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia

   Abstract:  1. We examine the spatial distributions of pelagic seabirds and. fur seals near South ... Georgia, and asked to what extent the distributions of these predators were influenced by the spatial ... distribution of their principal prey, Antarctic krill Euphausia superba Dana. One novel aspect of our analysis ... is an explicit consideration of the separation in space between swarms of krill and aggregations of ...

   Meeting Document : WG-CEMP-93/13 : Auteur(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)

8. Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia

   Abstract:  We studied the distributions, abundances and interactions of macaroni penguins Eudyptes ... . Simultaneous surveys of marine birds, Antarctic fur seals and Antarctic krill were conducted along a series of ... transects radiating from the breeding colonies of the vertebrate predators. We examined the relationships ... between the distributions of predators and their prey with respect to the abundance of krill in the water ...

   Meeting Document : WG-CEMP-93/12 : Auteur(s): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)

9. Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set

   Abstract:  In the vicinity of the northern tip of Antarctic Peninsula, the Bransfield Straits and ... Pacific Ocean. A series of fronts form which collectively are referred to as the Weddell-Scotia Confluence ... a zone of varied width (10 to 100 Km) of water which can best be considered as continental margin ... water, advected into the region along the extreme western edge of the Weddell Gyre. It is relatively ...

   Meeting Document : SC-CAMLR-VII/BG/19 : Auteur(s): United States of America

10. A methodology for estimating total finfish by-catch of the Area 48 krill fishery

    bycatch of the Area 48 krill fishery and quantify the impact of bycatch on the finfish stocks using data ... . Estimates of bycatch rates per tonne of catch were made at a family level for Channichthyidae, Nototheniidae ... rates were applied to estimates of krill catch to estimate precautionary total bycatch numbers of each ... and Notothenia rossii were used to convert total bycatch numbers to biomass at age of 50% maturity ...

    Meeting Document : WG-EMM-12/29 : Auteur(s): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)

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