Resultados de la búsqueda
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Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2019
year. Catches of skates were similar to those of the last three years, which have been higher than ... Abstract: During late March to early April 2019, the annual random stratified trawl survey (RSTS ... ) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the ... design and the duration of the hauls were similar to recent surveys, but with a new set of randomly ...
Meeting Document : WG-FSA-2019/03 : Autor(es): G.B. Nowara, T.D. Lamb and P. Ziegler
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Hook loss in CCAMLR exploratory fisheries
hook loss data was provided by 21 of the 34 vessel/fishery reports with an estimated 317920 hooks lost ... Abstract: The development of methods to estimate unaccounted fishing mortality from lost fishing ... lines requires an estimate of the number of lost hooks that are attached to sections of line. In 2011 ... attached to sections of lines. In 2012 15 of the 26 vessel/fishery reports provided non-zero data with an ...
Meeting Document : WG-FSA-12/65 : Autor(es): Secretariat
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Changes in the foraging range of Adélie penguins as the breeding season progresses
season of Adélie penguins nesting at Béchervaise Island on the Mawson coast of Eastern Antarctica. A ... consistently used as access to the sea during incubation. 3. Kernel analyses showed that penguins foraged most ... with the changing requirements of adults and chicks. However, increases in range as the chick rearing ... period progresses are also consistent with prey depletion and intraspecific competition. 5. Projection of ...
Meeting Document : WG-EMM-04/57 : Autor(es): J. Clarke and L. Emmerson (Australia)
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REPORT OF THE UK GROUNDFISH SURVEY AT SOUTH GEORGIA (CCAMLR SUB-AREA 48.3) IN JANUARY 2009
assumed to be 3+. Very few juvenile fish were observed except in the south eastern sector of the South ... )) was 31,753 t with a lower 1-sided CI at 18,904 t. Catches of icefish across the region were dominated ... Georgia shelf. Icefish diet was dominated by the amphipod, Themisto gaudichaudii with very low levels of ...
Meeting Document : WG-FSA-09/09 : Autor(es): M. Belchier, R.E. Mitchell, M.A. Collins, L. Kenny, M. Taylor, J. Nelson and L. Featherstone (United Kingdom)
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
, starting within or before December–January, and with the main part of the spawning occuring later than ... scale, Macrourus whitsoni and M. caml seem to be almost completely sympatric by depth and area, with ... increase in the proportion of M. whitsoni relative to M. caml caught on baited autolines with increasing ... different growth rates; M. whitsoni approaches full size at about 10–15 years of age and can live to at ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Autor(es): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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Foraging response of Antarctic fur seals to changes in the marine environment
gazella at Bird Island, South Georgia (54° S, 38° W), during 3 austral summers (1994 to 1996). Time-depth ... . In 1994 and 1995 deeper and longer-duration daytime dives were associated with a higher proportion of ... fish and squid in the diet. Foraging trip duration, ashore duration and dive frequency increased ... contained in scats. In 1996, a year of high krill abundance, females made shorter foraging trips, fewer ...
Meeting Document : WG-EMM-99/35 : Autor(es): D.J. McCafferty, I.L. Boyd, T.R. Walker and R.I. Taylor (United Kingdom)
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Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)
has been conducted with a research plan submitted under CM 24-01 since 2008 by Japan. France joined ... and WG-FSA-16/33 Rev. 1) for a period of 5 years. The proposal submitted here has been substantially ... the research objectives. The survey design has been amended to avoid sea pen hotspots in the eastern ... depredation and IUU were tested to account for uncertainties associated with these processes in the model. In ...
Meeting Document : WG-SAM-2019/08 : Autor(es): Delegations of Japan and France
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Peculiarities of Euphausia superba size composition in Statistical Subarea 48.2 (South Orkney Islands)
(Table 1), which cover 20-years period (from 1965 to 1985). Data on size composition of E.superba for ... maxima, than in the norhtern part of the region. These featurese are concerned mainly to E.superba with ... only in the southern part of the region, but also in eastern and especially to its north-east parts. In ... with size less 48 mm. Resulting picture reflects well known phenomenon of separate distribution of ...
Meeting Document : WG-KRILL-91/11 : Autor(es): V.I. Latogursky and R.R. Makarov (USSR)
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Survey estimates of recruitment of toothfish in Subarea 48.3
data used by the Working Group for toothfish assessments in 1999 and later were correct. We found ... procedures and 6 strata (3 depth strata each at Shag Rocks and South Georgia). It is easy to spot, visually ... consistently determined from the survey data. The expected reduction in cohort density with time at a log-scale ...
Meeting Document : WG-FSA-SAM-04/16 : Autor(es): Collins, M., Wakeford, R.C., Moir-Clark, J., Belchier, M., Agnew, D.J.
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BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 2006/2007
Abstract: During the seventeenth year of standardised beach surveys of man-made debris at Bird ... previous years: 73% during summer (265 items) and 27% during winter (100 items). After three consecutive ... years in which no fisheries related debris was observed, one nylon fishing line and one snood were found ...
Meeting Document : WG-FSA-08/24 : Autor(es): F. Le Bouard (UK)