Search results
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Models of tag shedding for double tagging as a function of time at liberty and approximate solutions for the single tagging model in CASAL
Abstract: The model of tag shedding implicit in CASAL is that of Kirkwood and Walker (KW) (1984 ... ) and Hillary et al. (2006) to apply the square of the individual tag loss annual rate in CASAL over ... a large sample of recaptures of fish released in the Heard and MacDonald Island (HIMI) (Division ... (GAM) was also fitted and is the most flexible in shape. The estimation method accounts for the fact ...
Meeting Document : WG-SAM-11/12 : Author(s): S.G. Candy (Australia)
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DATA QUALITY ASSESSMENT IN CCAMLR: REQUIREMENTS FOR MINIMUM INTEGRITY TESTING TO ENSURE THAT DATA ARE FIT FOR PURPOSE
confirmation of their validity. In the context of CCAMLR, data may undergo one set of quality testing in order ... important for prioritizing the work of the Secretariat in data quality assessment, and also in ensuring that ... errors and discrepancies are resolved in consultation with data owners/originators and, where possible ... errors in fishery data which originated at the vessel-level, and indicated that some errors were not ...
Meeting Document : WG-SAM-09/05 : Author(s): Secretariat
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Preliminary standardised CPUE analysis of the New Zealand toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
) from the exploratory fishery for Antarctic toothfish Dissostichus mawsoni, which has operated in ... ) analysis reviewed CPUE from the two main vessels involved in the fishery, and reviewed their catch from the ... analysis, variables area, season, length of line, soaktime, latitude and month in season entered the model ... , in order. This model explained 32% of the data variability, but was influenced by exploratory fishing ...
Meeting Document : WG-FSA-02/41 : Author(s): R.G. Blackwell and S.M. Hanchet (New Zealand)
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Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
Antarctica. In contrast, less is known about the Type A killer whales that are more typical in appearance to ... killer whales sighted in other parts of the world. Sightings of Type A around the AP have been ... increasing in recent years, including observations of predation on a number of whale and pinniped species ... whales and estimate their abundance trends in the coastal waters around the AP. Whales tagged off the ...
Meeting Document : WG-EMM-17/49 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea
, penguins, seals, and fish) in the Scotia Sea. We also investigated the potential to mitigate depletion risk ... for predators by curtailing krill fishing at different points in the 21st century. The projected ... effects of ocean warming on krill biomass were strongest in the northern Scotia Sea, with a ≥ 40% decline ... in the mass of individual krill. Projections also suggest a 25% chance that krill biomass will fall ...
Meeting Document : WG-EMM-18/P02 : Author(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters
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COMPARATIVE CHARACTERISTICS OF BASIC BIOLOGICAL PARAMETERS OF TWO TOOTHFISH SPECIES IN HIGH-LATITUDE SEAS OF THE ANTARCTIC
» in the areas of the Ross Sea and the Antarctic continental shelf (statistical subareas 88.1 and ... 58.4.1) outside the exclusive (marine) economic zones of foreign states, in the period from 5 November ... , 2007 till 24 March, 2008. In the paper size characteristics of Antarctic and Patagonian toothfishes ... caught in different areas of the Antarctic shelf were given as well as characteristics of maturity level ...
Meeting Document : WG-FSA-08/12 : Author(s): A.K. Zaytsev (Ukraine)
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Incidences of gillnet fishing in the Convention Area reported through the Scheme of International Scientific Observation
Abstract: Observers deployed in terms of the CCAMLR Scheme of International Scientific ... activity have been reported from seven cruises by South African Observers deployed in the BANZARE Bank and ... Prydz Bay region. Recent observer reports indicate that there is an increase in gillnet fishing activity ... on some of the fishing grounds in this area. These reports are supported by both photographic ...
Meeting Document : CCAMLR-XXVI/BG/30 : Author(s): Delegation of South Africa
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The principal results of YugNIRO complex studies in the Indian sector of the Antarctic
Abstract: In 1997 it was 30 years from the moment of launching YugNIRO fisheries studies in the ... Antarctic. Two essential points should be emphasized in the ideology and methodology of the studies carried ... out. Firstly, complex monitoring is their basis: in addition to the determination of the commercial ... B.G. Trotsenko (Ukraine) Title: The principal results of YugNIRO complex studies in the Indian sector ...
Meeting Document : WG-EMM-98/12 : Author(s): V.I. Bondarenko, V.A. Bibik, V.V. Gerasimchook, E.P. Goubanov, A.V. Romanov and B.G. Trotsenko (Ukraine)
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CPUEs and body length of Antarctic krill during 1994/95 season in the fishing grounds around the South Shetland Islands
Abstract: This paper summarizes Japanese krill catch data during austral summer in 1994/95 season ... . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... (except April), and around Elephant Island during April to May. CPUEs in the fishing to the north of ... Elephant Island Krill with a modal length of 48-50mm were dominant in catches, extreamly larger than the ...
Meeting Document : WG-EMM-96/47 : Author(s): Naganobu, M., Ichii, T., Kawaguchi, S.
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CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands
Abstract: This paper summarizes Japanese krill catch data during austral summer in 1993/94 season ... . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... summer (early February- early March) in the north of Livingston Island, and April at the west of Elephant ... Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ...
Meeting Document : WG-EMM-95/51 : Author(s): Kawaguchi, S., Ichii, T., Naganobu, M.