Resultados de la búsqueda
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AGE ESTIMATION AND LEAD-RADIUM DATING OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI)
commercial fishery in the Southern Ocean, yet many of their life history characteristics, including vital ... rates, remain unknown. In this study, Antarctic toothfish were aged using otolith age estimation ... estimated ages, the radioactive disequilibrium of lead-210 and radium-226 in otolith cores was measured and ... to at least 39 years of age. Estimated and radiometric ages were in close agreement, confirming age ...
Meeting Document : WG-FSA-08/17 : Autor(es): C.M. Brooks, A.H. Andrews, J.R. Ashford, G.M. Cailliet, N. Ramanna and C. Lundstrom (USA)
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FISHING EQUIPMENT, MARINE DEBRIS AND HYDROCARBON SOILING ASSOCIATED WITH SEABIRDS AT BIRD ISLAND, SOUTH GEORGIA, 2007/2008
2008. It is the fifteenth such annual report. As in previous years, the majority of items (84%) of ... marine debris and fishing gear (mostly hooks and lines from longline fisheries) were found in association ... with wandering albatrosses Diomedea exulans, and very few in association with grey-headed Thalassarche ... was observed in the total number of items encountered (n=116) compared with the previous season. Two ...
Meeting Document : WG-FSA-08/25 : Autor(es): D. Fox (UK)
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Hidroacustics survey around Elephant Island (Subarea 48.1) and South Orkney Islands (Subarea 48.2), austral summer 2016
Abstract: This paper submits the results of the acoustic cruise made in the austral summer of ... , and the presence of fish shoals in 1,500 nautical miles over the shelf and the continental slope (100 ... fish species in the research, besides other finfish species in the area. The mackerel icefish was found ... and semi-pelagic overnight. During the darkness hours the mean determined depth in the schools was ...
Meeting Document : WG-FSA-16/21 : Autor(es): N.A. Landeros and P.M. Arana
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AFRICAN IUU CAPACITY BUILDING WORKSHOP AND EXPENDITURE FROM THE CDS FUND – REPORT TO CCAMLR-XXIX
CCAMLR-XXIX Abstract This paper provides a report in accordance with Conservation Measure 10-05, Annex 10 ... -XXVIII in CCAMLR-XXVIII/38. Summary 1. Representatives from twelve African coastal States attended this ... capacity-building event focusing on illegal, unreported and unregulated (IUU) fishing in the CCAMLR ... Convention Area. The workshop was successful in raising awareness of IUU fishing and CCAMLR more widely and ...
Meeting Document : CCAMLR-XXIX/09 : Autor(es): Delegations of Australia, South Africa, the United Kingdom and the CCAMLR Secretariat
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Preparing for the Year of the Skate: proposed information collection and tagging protocol for skates
Abstract: Skates are an important bycatch of the toothfish fishery in the CCAMLR area and have ... required before a full assessment can be carried out. In 2007, CCAMLR-SAM-WG recommended (CCAMLR XXVI WG ... collection effort on bycatch will be concentrated on skate species in that year in order to inform a full ... data from the fishery and a revised skate tagging protocol. These changes could be piloted in the 2007 ...
Meeting Document : WG-FSA-07/39 : Autor(es): S. Mormede, A. Dunn, J. Fenaughty, M. Francis, S. Hanchet, R. O’Driscoll and N. Smith (New Zealand)
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A spatial multi-species operating model of the Antarctic Peninsula krill fishery and its impacts on land-breeding
-predator-fishery dynamics is described. This has been developed in response to requests for scientific ... management units (SSMUs) in the Scotia Sea, to reduce the potential impact of fishing on land-based predators ... . SMOM has been revised from the original version presented in Plagányi and Butterworth (2006a) in three ... main ways: 1) Accounting for seasonality; 2) Explicitly modelling fish and whales in addition to ...
Meeting Document : WG-SAM-07/12 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)
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Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management
“Workshop on plausible ecosystem models for testing approaches to krill management” in preparation for the ... different management approaches to underlying uncertainties in the ecological, fishery, monitoring and ... assessment systems. As agreed at WG-EMM in 2003, intersessional activities have included (i) provision of ... advice on the potential contributions from experts in preparation for the workshop and in participating ...
Meeting Document : WG-EMM-04/25
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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 ... anywhere in the Antarctic. In this paper we describe the population trends and breeding productivity ... consecutive years beginning in the 1996/1997 breeding season. Our results demonstrate that all colonies show ...
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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Report on a tuna long-lining fishing voyage aboard Southern Venture to observe seabird by-catch problems
birds survived hooking in this study because of the lighter gear and quicker recovery of the long-line ... (about 6 hours between beginning the set and beginning hauling-in). Petrels, particularly Cape Pigeons ... % of bait-takes resulted in a bird being hooked. The mollymawk was hooked at night near full moon, but ... under thick cloud. Most bait-takes occurred in daylight, particularly before dusk. The vessel's ...
Meeting Document : WG-IMALF-94/10 : Autor(es): M.J. Imber (New Zealand)
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DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT
biological sampling data from a fishing trip. In particular these measures aim to quantify the prevalence of ... assist in assessing which data from a trip should be used in an assessment, and can also guide how these ... is fitted in an assessment model.The data quality measures illustrate sometimes substantial variation ... in the quality of particular data sets from different trips in the Ross Sea Antarctic toothfish ...
Meeting Document : WG-SAM-08/13 : Autor(es): D.A.J. Middleton and A. Dunn (New Zealand)