Résultats de la recherche
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ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES
of two further options (Option 5- adjustable catch limits within SSMUs and Option 6- structured ... the distribution of predator demand (Option 2), krill standing stock (Option 3), or the difference ... than those documenting the distribution of predator demand, leading us to favour the use of Option 3 ... . However, we note that though Option 3 appears to be the most favourable, there is little documentary ...
Meeting Document : WG-EMM-08/12 : Auteur(s): P.N. Trathan and S.L. Hill (United Kingdom)
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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
consecutive years, including 3 years when several indices showed that food availability was well below average ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... age 3–4 years, pregnancy rate peaked at age 8 years and declined thereafter. Otherwise pregnancy rate ... animals having been pregnant in the previous year. 6. Reproduction incurs costs to females, in terms of ...
Meeting Document : WG-EMM-95/26 : Auteur(s): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
(3% per year). The estimate of Indian yellow-nosed albatrosses T. carteri at Prince Edward Island was ... increased by almost 6% per year at Marion Island since 1996. Counts of both giant petrels increased at ... (pairs) at the two islands are 3 650 wandering albatrosses, 9 500 grey-headed albatrosses, 7 000 Indian ... are reasonably healthy despite fishing mortality. (Afr. J. Mar. Sci., 31 (3) (2009): 409–417) Author(s ...
Meeting Document : WG-EMM-10/P04 : Auteur(s): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
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Monitoring a marine ecosystem using responses of upper trophic level predators
South Georgia (Southern Ocean) using up to 27 variables measured over 22 years from 3 upper trophic ... had the greatest influence. 3. Principal components analysis showed that variables representing ... followed by variables representing diet. 4. There were 3 years in which the CSI showed extreme and ... CSI was calculated for each species individually. 6. Separate analysis of variables that were likely ...
Meeting Document : WG-EMM-01/25 : Auteur(s): I.L. Boyd and A.W.A. Murray (United Kingdom)
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Net diagrams for Chinese vessels notified for krill fishery in 2015/16 Notification ID 86733, 86772 and 86773
fishery in the 2015/16 fishing season submitted for the Chinese vessels: LONG TENG (Page 3-5); LONG FA ... (Page 6-8); LONG DA (Page 9-10); FU RONG HAI (Page 11-12); KAI LI (Page 13-14); KAIYU (Page 15-16); MING ...
Meeting Document : WG-EMM-15/02 : Auteur(s): Delegation of the People’s Republic of China
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Progress report on the research longline fishery of Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13
and South Africa during the first 6 months is presented. Two vessels participated in the fishery and ... recaptures were recorded, of which 3 were within year recaptures. Only minor modifications are suggested to ... the current research plan for the 2013/14 season. The current requirement for an minimum spacing of 3 ...
Meeting Document : WG-SAM-13/05 : Auteur(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Net-based verification of acoustic techniques used to identify Antarctic krill
' using an SDWBA-derived range for Sv120-3, (iii) '2 freq 2-16'- with an Sv120-38 range ... identified only 6 of the 16 krill aggregations sampled the nets. contrast the '2 freq model' and ... frequency techniques. Such results indicate that use of the present SDWBA-derived ranges in the CCAMLR 3 ...
Meeting Document : SG-ASAM-09/04 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)
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Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010
during preceding years. Modal age changed from 2-3 to 6-7 yr. Length data of G. gibberifrons, available ... precautionary and disallowing depletion beyond which a stock can recover in 2-3 decades, may be unrealistic in ...
Meeting Document : WG-FSA-12/P01 : Auteur(s): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley
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Long-term changes in the size composition of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, after the 1978–1980 fishery in the area
length distributions observed between 1982/83 and 1985/86, where the modal age changes from 2/3 to 6/7 ... 1986/7 and the duration of the inshore phase of the species, which is known to last for 6-7 years. In ...
Meeting Document : WG-FSA-07/52 : Auteur(s): E.R. Marschoff, E.R. Barrera-Oro and N.S. Alescio (Argentina)
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ACOUSTIC IDENTIFICATION AND SIZE ESTIMATION OF EUPHAUSIIDS
resources in the southern ocean. During the International Polar Year 2008, RV “G.O. Sars” spent 3 months in ... . Krill were identified from the relative frequency response of a 6-frequency hull-mounted echo-sounder ...
Meeting Document : SG-ASAM-09/08 : Auteur(s): R. Korneliussen and G. Skaret (Norway)