Search results
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Physical data used in space averaging: Trophic modelling of the Ross Sea
Physical data used in space averaging: Trophic modelling of the Ross Sea M.H. Pinkerton, M.J.M. Williams ... The data on trophic compartments used in the model have been time and space averaged. The biomass for ... biomass averages are arrived at in various ways, depending on the compartment. Compartments near the ... , whereas benthic compartments and those higher in the food web may have a strong bathymetric component ...
Document : Site Section: Publications
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A REVIEW OF THE METHODS USED TO RELEASE SKATES (RAJIIDS), WITH OR WITHOUT TAGS, IN ANTARCTIC EXPLORATORY FISHERIES
fishing vessels in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) in 1999/2000. Based on preliminary results ... Scientific Committee gave approval in 2004 for licensed vessels to cut live skates from the line (while in ... implemented was that some form of in-water release would be the ideal to improve survival chances ... Assessment (WG-FSA) noted in 2004, when recommending skate release as an option to the Scientific Committee ...
Meeting Document : WG-FSA-08/30 : Author(s): J.M. Fenaughty (New Zealand)
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands derived from a long-term monitoring program (1983–2006) at Potter Cover
twenty four years, and at Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003. The ... decline in trammel net catches of fjord fishes of the species Notothenia rossii and Gobionotothen ... gibberifrons in relation to the non commercially fished Notothenia coriiceps, which was previously reported for ... . rossii catches from 1991 to 2006, the actual levels are half of those found in the early 1980s, while ...
Meeting Document : WG-FSA-06/25 : Author(s): E.R. Barrera-Oro and E.R. Marschoff (Argentina)
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Standardised CPUE analysis of the Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2005/06
) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... that have been in the fishery for at least 4 years. We estimate indices using both lognormal ... generalised linear models and a Tweedie mixed model. The variables included in the analysis appeared ... yearly indices were relatively stable between 1998 and 2003, with a decline in 2004, and an increase in ...
Meeting Document : WG-FSA-06/47 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in May 2002
Abstract: A survey of Patagonian toothfish, Dissostichus eleginoides, was undertaken in Division ... 58.5.2 in the vicinity of Heard Island in May 2002 to provide the information for an assessment of long ... -term annual yield in the 2002/2003 CCAMLR season and beyond. This paper provides a preliminary ... estimate of biomass of juvenile Patagonian toothfish in the vicinity of Heard Island was similar to the ...
Meeting Document : WG-FSA-02/70 : Author(s): A.J. Constable, R. Williams and T. Lamb (Australia)
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Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region
Abstract: Based on a survey of Dissostichus eleginoides in the Heard Island region in April 1999 ... and information from an observer program on the commercial fishery begun in 1997, this paper aims (i ... ) to provide an assessment of biomass and stock structure in the vicinity of Heard, (ii) to examine the ... of Dissostichus eleginoides at Heard Island in the southern Indian Ocean and South Georgia Island in ...
Meeting Document : WG-FSA-99/68 : Author(s): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Revised research program of Ukraine in Subarea 88.3
Abstract: The research of Dissostichus in Subarea 88.3 carried out by Chile in 1998, New Zealand ... in 2005, Russia in 2011 and 2012 and the Republic of Korea in 2016. It was noted that no tagged ... January to April, as ice conditions permit. It is planned that the number of longline sets will be 60 in ... four reserch blocks. It is planned to complete the study for Dissostichus spp. in Subarea 88.3 within 3 ...
Meeting Document : WG-FSA-17/34 : Author(s): Delegation of Ukraine
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Results of a research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012
longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ... the southern Ross Sea using standardised gear in a standardised manner; and (ii) To carry out ... experimental depth-stratified fishing in 400–600 m depth adjacent to the survey boundaries to establish the ... carry out a longline survey of pre-recruit toothfish from commercial fishing vessel in Ross Sea using ...
Meeting Document : WG-SAM-12/29 : Author(s): S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)
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Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth history
in longitudinal sections of teeth. Mean age at death was 7∙69 ± 0∙07 years and this showed a small ... provided an indication of body growth, Tooth growth rate was lowest in seals which died early (age 4 years ... ) and increased with age at death. Changes in the growth pattern of teeth suggested that fur seals which ... became sexually mature early also died early. Tooth growth layers deposited in each calendar year were ...
Meeting Document : WG-CEMP-93/11 : Author(s): I.L. Boyd and J.P. Roberts (United Kingdom)
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Population change in gentoo penguins Pygoscelis papua at South Georgia: potential roles of adult survival, recruitment and deferred breeding
Abstract: Data on breeding population size and breeding success in gentoo penguins at Bird Island ... , South Georgia from 1977-1992 are used, in conjunction with empirical (and some hypothetical) data on ... survival and recruitment rates, to model the fluctuations in breeding populations, taking account of ... generally good agreement between observed and predicted breeding populations, except in four years, when ...
Meeting Document : WG-CEMP-93/08 : Author(s): J.P. Croxall and P. Rothery (United Kingdom)