Resultados de la búsqueda
-
Extinction risk of Antarctic and sub-Antarctic colonies of Pygoscelid penguins under climate change context
Abstract: Several studies have emphasized the variable abundance of Pygoscelid penguins from ... different colonies around Antarctica. In this study, the extinction risk of Adélie, Chinstrap and Gentoo ... structure and the response of population dynamics of each colony to exogenous perturbations. The ... , i.e. prior to the breeding season, which directly affects the carrying capacity of the area. The ...
Meeting Document : WG-EMM-2019/74 : Autor(es): M. Huerta and S.A. Estay
-
OPTIMISING THE DESIGN OF LARGE-SCALE GROUND SURVEYS OF ADÉLIE PENGUIN ABUNDANCE USING VIRTUAL SIMULATION IN A GEOGRAPHIC INFORMATION SYSTEM
Abstract: One of the recommendations for future work from the 2008 Predator Survey Workshop was ... use of satellite imagery and the use of GPS receivers to accurately map colony areas from which ... approach is illustrated using a case study of a large-scale ground survey of Adélie penguins. The findings ... aircraft. Author(s): C. Southwell, R. Driessen and S. Candy (Australia) Title: OPTIMISING THE DESIGN OF ...
Meeting Document : WG-EMM-11/42 : Autor(es): C. Southwell, R. Driessen and S. Candy (Australia)
-
Developing conceptual models of elements of the Antarctic marine ecosystem: marine mammals
Monitoring and Management (WG-EMM). This paper describes properties for two groups of marine mammals that may ... Abstract: The Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... currently considering plausible models of the Southern Ocean ecosystem within the Working Group on Ecosystem ... be included in future ecosystem models of the Southern Ocean: cetaceans and pack-ice breeding seals ...
Meeting Document : WG-EMM-04/65 : Autor(es): N. Gales and C. Southwell (Australia)
-
Standing stock biomass of eight species of finfish around Elephant Island and the lower South Shetland Islands (Subarea 48.1) from the 1998 US AMLR bottom trawl survey
bottom trawl surveys in March, 1998 of the two major regions of the South Shetland Islands: Elephant ... Island and the lower South Shetland Islands from King George Island to Livingston Island. Estimates of ... Lepidonotothen squamifrons. Estimates of total stock biomass only were computed for two additional species ... one system using previous and updated estimates of seabed areas for Elephant Island and the lower ...
Meeting Document : WG-FSA-98/17 : Autor(es): C.D. Jones (USA), K.-H. Kock and S. Wilhelms (Germany)
-
Use of a population model to assess the impact of longline fishing on wandering albatross populations
Abstract: An age-structured model of a wandering albatross Diomedea exulans population is ... rate of 2.29% per year, which concurs with global population trends. Sensitivity analyses of model ... albatross mortality is presumed to have increased as a result of deaths caused by longline fishing vessels ... investigate the potential impacts of new longline fisheries such as that for Patagonian toothfish Dissostichus ...
Meeting Document : WG-IMALF-94/08 : Autor(es): Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)
-
NEW DATA ON MIGRATIONS OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI NORMAN, 1937 (PERCIFORMES, NOTOTHENIIDAE) OBTAINED DURING IMPLEMENTATION OF THE PROGRAM ON DISSOSTICHUS SPECIES TAGGING IN THE LONGLINE FISHERY IN THE D’URVILLE SEA, 2008/09
Abstract: In fishing season, 2008/09, at implementation of the program on Dissostichus spp ... . tagging aboard Korean longliner “22 INSUNG”, in the D’Urville Sea for the short, period of time the new ... data on migration of one individual D.mawsoni were obtained. Supposedly, the speed of migration was ... OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI NORMAN, 1937 (PERCIFORMES, NOTOTHENIIDAE) OBTAINED DURING ...
Meeting Document : WG-FSA-09/P01 : Autor(es): A.F. Petrov and V.A. Tatarnikov (Russia)
-
AERIAL SURVEYS OF WEDDELL SEALS DURING 2007-08, WITH NOTES ON THE HISTORY OF AERIAL CENSUSES IN THE ROSS SEA AND RECOMMENDATIONS FOR CONTINUED COUNT EFFORT
from industrial fishing. On the basis of this and the previous paper, a Weddell seals monitoring ... Abstract: Weddell seals (Leptonychotes weddellii) have proved to be an important predator of ... , in November 2007, and summarize historical results of aerial surveys made along the coast of Victoria ... successfully be used to document changes in distribution and abundance of Weddell seals. Ground counts of ...
Meeting Document : WG-EMM-08/23 : Autor(es): D. Siniff and D. Ainley (USA)
-
The diet of the blue-eyed shag Phalacrocorax atriceps at Laurie Island, South Orkney Islands, as reflected by the analysis of stomach contents collected throughout the breeding season
Abstract: The analysis of twenty nine stomach contents collected in a colony close to Pirie ... prey of the blue-eyed shag Phalacrocorax atriceps, followed by octopods, decapods and gammarids ... . Notothenia coriiceps constituted the bulk of the diet; however, its importance decreased by the end of the ... study when Nototheniops nudifrons was the most important prey. The composition of the diet varied ...
Meeting Document : WG-EMM-95/81 : Autor(es): Coria, N., Barrera-Oro, E., Casaux, R.
-
Demography of the Korean blue crab, Portunus trituberculatus fishery exploited in the west coast of Korea and the East China Sea
Abstract: A quantitative analysis was carried out to estimate the maximum sustainable yield of ... blue crab distributed around the waters of Korea and in the East China Sea without using fishing effort ... 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 : Autor(es): J.-U. Lee and D.-H. An (Republic of Korea)
-
Joint Polish/American hydroacoustic survey of Elephant Island in the vicinity of King George Island, 1988
years survey. The total biomass in the vicinity of Elephant Island was estimated from 120 kHz data to be ... 260 k tons and that in the Bransfield Strait South of King George Island was 39 k tons for a total of ... 7,787 nm2) in the Bransfield Strait and the area North of King George Island and 309k tons (in 8,836 nm2 ... ) in the expanded area around Elephant Island. Author(s): United States of America Title: Joint ...
Meeting Document : SC-CAMLR-VII/BG/21 : Autor(es): United States of America