Resultados de la búsqueda
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Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
of mackerel icefish (Champsocephalus gunnari) at South Georgia Approval: Approved ... Abstract: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari ... ) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ...
Meeting Document : WG-FSA-92/26 : Autor(es): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
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Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in trammel net catches at Potter Cove, South Shetland Islands
Abstract: A monitoring program of demersal fish in inshore sites of the South Shetland Islands ... has continued in Potter Cove from 1991 to 1998, covering a continuous sampling period of 15 years and ... in Harmony Cove, Nelson Island, in the austral summer 1995/96. The decline in trammel net catches of ... fjord fishes of the species Notothenia rossii and Gobionotothen gibberifrons in relation to the non ...
Meeting Document : WG-FSA-98/57 : Autor(es): E. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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Spatial and temporal patterns of sperm whale (Physeter macrocephalus) depredation on Australian longline vessels in the Patagonian toothfish (Dissostichus eleginoides) fishery at Heard Island and McDonald Islands (CCAMLR Division 58.5.2)
Abstract: Incidence of odontocete depredation, involving sperm whales (Physeter microcephalus ... ) and orcas (Orcinus orca) has been reported in nearly all of the Patagonian toothfish (Dissostichus ... and Tixier 2015, Söffker et al. 2015). The first reports of odontocete depredation in the Division ... of reports involve sperm whales, with a single sighting of orcas to date. There is a strong seasonal ...
Meeting Document : WG-FSA-15/53 : Autor(es): D.C. Welsford and R. Arangio (Australia)
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Seasonal variation in the diet of Arctocephalus gazella at 25 de Mayo/King George Island, South Shetland Islands, Antarctica
) Title: Seasonal variation in the diet of Arctocephalus gazella at 25 de Mayo/King George Island, South ... Abstract: The trophic study of Arctocephalus gazella is an essential tool for assessing its ... ecological role as a top predator of the Antarctic marine ecosystem. The aim of this study was to analyse its ... diet during an annual cycle. To our knowledge, this is the first report of the feeding habits of A ...
Meeting Document : WG-EMM-15/37 : Autor(es): A. Harrington, G.A. Daneri, A.R. Carlini, D.S. Reygert and A. Corbalán (Argentina)
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POPULATION ASSESSMENTS OF GENTOO PENGUINS (PYGOSCELIS PAPUA) BREEDING AT AN IMPORTANT ANTARCTIC TOURIST SITE, GOUDIER ISLAND, PORT LOCKROY, PALMER ARCHIPELAGO, ANTARCTICA
Abstract: Goudier Island is located in the Palmer Archipelago, to the west of the Antarctic ... Peninsula; it is one of the most frequently visited tourist sites in Antarctica. A number of gentoo penguin ... (Pygoscelis papua) breeding colonies are located on the island and these have been the focus of one of the ... longest running experiments to examine the impacts of tourist numbers upon penguin breeding performance ...
Meeting Document : WG-EMM-09/P07 : Autor(es): P.N. Trathan, J. Forcada, R. Atkinson, R.H. Downie and J.R. Shears
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The use of Port State measures to improve fisheries compliance at the international levelIssues and instruments – the CCAMLR case
approaches to port State control in order to avoid the development of “ports of convenience” and improve ... fisheries compliance. Possible approaches include the development of regional Memoranda of Understanding ... ) fishing. CCAMLR is generally regarded as a good regional model in the area of port State control. Hence ... , to encourage the application of similar approaches in those Regional Fisheries Management ...
Meeting Document : CCAMLR-XXV/BG/29 : Autor(es): Submitted by ASOC
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Report on attendance at the Seventh Meeting of the Committee for Environmental Protection under the Madrid Protocol
Committee Title: Report on attendance at the Seventh Meeting of the Committee for Environmental Protection ... Abstract: This report outlines the participation of the SC-CAMLR Chair in the Seventh Meeting of ... issues of relevance to SC-CAMLR are: (a) The CEP again addressed the issue of establishing ‘Specially ... components of the revised text on which there was no agreement about the technical or legal nature of the ...
Meeting Document : CCAMLR-XXIII/BG/07 : Autor(es): Chair of the CCAMLR Scientific Committee
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The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island
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 ... . Understanding the source of the variability required to generate ‘noise’ for the power analysis simulations is ...
Meeting Document : WG-EMM-03/49 : Autor(es): L.M. Emmerson and C. Southwell (Australia)
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Linking population trends of Antarctic shag (Phalacrocorax bransfieldensis) and fish at Nelson Island, South Shetland Islands (Antarctica)
in the number of breeding pairs of Antarctic shag Phalacrocorax bransfieldensis in two colonies on ... Nelson Island, South Shetland Islands, southern Atlantic sector of Antarctica, which was observed during ... the 1990s up to the mid 2000s over an overall monitoring period of over two decades. It addresses ... correspondence between long-term population trends of inshore demersal fish and inshore-feeding Antarctic shags ...
Meeting Document : WG-EMM-16/P09 : Autor(es): R. Casaux and E. Barrera-Oro
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Fitting a von Bertalanffy growth model to length-at-age data accounting for length-dependent fishing selectivity and length-stratified sub-sampling of length frequency samples
Abstract: Response-biased sampling in the context of regression modelling occurs when sample ... units are selected with a probability that is a function of the response. In sampling to obtain fish to ... process involving a particular gear, and (ii) the method of on-deck sub-sampling fish for ageing from the ... random length frequency sample. When the selectivity of the gear combined with availability of fish to be ...
Meeting Document : WG-FSA-SAM-05/13 : Autor(es): S.G. Candy (Australia)