Résultats de la recherche
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Statistical power to detect changes in growth rates of Antarctic fur seal pups
Abstract / Description: Numerical simulations were used to investigate the power of methods for detecting ... changes (between years) in pup growth rates, the loss of power associated with obtaining weight samples on ... Method (50 pups of each sex, weighed on four dates at 28-day intervals) would result in the ability to ... for each year and as weighted averages of both years. Growth Rate Standard Error (kg/d) of Growth ... computed separately for each sex and year. Bartlett's test was used to evaluate heterogeneity of variances ... dates, for either sex in either year (P > 0.13 in all cases). Table 2 shows estimates of growth rates ... ------- ------- Females ------- mean mean Date n weight (kg) s.d. n weight (kg) s.d. 1988: 2 Jan 30 9.91 1.60 20 8.78 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 399–409 : Auteur(s): Boveng, P., J.L. Bengtson and M.E. Goebel
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Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations
two species covers an estimated 440,000 and 640,000 km2 respectively, with very substantial overlap ... , congeneric species are very distinct. Based on location density categories accounting for 50 % of locations ... . In contrast, kernel estimation reveals that the main foraging areas of these two sympatric ...
Meeting Document : WG-FSA-99/19 : Auteur(s): A.G. Wood (United Kingdom), B. Naef-Daenzer (Switzerland), P.A. Prince and J.P. Croxall (United Kingdom)
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Updated description of Patagonian toothfish (Dissostichus eleginoides) tagging and ageing programs in Division 58.5.2, 1997–2015
an additional 2559 estimates of age, for fish captured during the 2014 and 2015 Random Stratified ... revised growth function for inclusion in the 2015 revised stock assessment. Author(s): D.C. Welsford, B ... , considerably adding to information on the structure of the population. The ageing program at AAD has produced ... the 2009/10-2013/14 seasons. These samples have detected fish as old as 51 years, increasing the ...
Meeting Document : WG-FSA-15/55 : Auteur(s): D.C. Welsford, B. Farmer, T.D. Lamb, C. Péron, E. Woodcock and P.E. Ziegler (Australia)
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Non-native Species in the Antarctic: Report of a Workshop
the ninth meeting of the Committee for Environmental Protection (CEP). CCAMLR’s Article II requires ... south of 60° South, including, for example, male and female specimens of the North Atlantic Spider crab ... species have been discovered on the sub-Antarctic islands and several non-native species have been found ... activity, as well as a changing, more benign climate (particularly on the Antarctic Peninsula) mean that ...
Meeting Document : SC-CAMLR-XXV/BG/21 : Auteur(s): Delegation of New Zealand
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THE RESEARCH PROJECT TO DIGITIZE HISTORICAL SOVIET KRILL FISHING EXPEDITION DATA
exclusive set of observations for investigation of the environment and the impact of climate change on krill ... collect data and samples and to create an estimation of the commercial exploitation of the Antarctic krill ... stock. The data is currently recorded in the paper forms as expedition logbooks and represent an ... and distribution data in Convention areas in electronic format for scientists and CCAMLR consideration ...
Meeting Document : WG-EMM-09/30 : Auteur(s): L. Pshenichnov and G. Milinevsky (Ukraine)
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Fishing equipment, marine debris and hydrocarbon soiling associated with seabirds at Bird Island, South Georgia, 2004/05
has decreased significantly over the past two seasons. Entanglements continue to be observed, hooks ... the most number of marine debris, though again total quantity is significantly down on previous years ... such annual report. As in previous years, more items of fishing gear (mostly longlining gear) were ...
Meeting Document : SC-CAMLR-XXIV/BG/14 : Auteur(s): Delegation of the United Kingdom
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Fishery Report: Dissostichus eleginoides Prince Edward Islands South African EEZ (Subareas 58.6 and 58.7)
30 22 20 72 0 72 2009/10 0 77 72 150 0 150 2010/111 129 68 108 305 * 305 1 Two vessels are ... catch-at-length data. An operational management procedure (OMP) approach for the fishery that ... accurate fine-scale data for all except two seasons (Figure 2) and encouraged South Africa to submit fine ... -scale data for those two seasons. 0 0.1 0.2 0.3 0.4 0.5 0.6 19 95 /9 6 19 96 /9 7 19 97 ...
Document : Site Section: Publications
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Food consumption estimates of southern elephant seal females during their post-breeding aquatic phase at South Shetland Islands
tissue during post-breeding. Daily energy requirements for an average sized female during the post ... in a loss of 35% of the initial mass, comprising 63% of initial body fat and 20% of initial body ... to recover an average of 55% of the mass, including 46% of the fat, 71% of the protein and 47% of the ... post-breeding phase. This might indicate the presence of a mechanism favouring an increase in lean ...
Meeting Document : WG-EMM-04/33 : Auteur(s): A.R. Carlini, G.A. Daneri, M.E.I. Márquez (Argentina), H. Bornemann (Germany), H. Panarello, R. Casaux (Argentina), S. Ramdohr and J. Plötz (Germany)
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Synopsis of CEMP and non-CEMP predator parameters from Admiralty Bay and Cape Shirreff, South Shetland Islands, Antarctica: their relationships to krill abundance and ice cover, 1978–2003
, annual sea ice cover and the relationship between these two measures for the period 1992-2002. 3. Table 3 ... presented as a linear regression for both Admiralty Bay and Cape Shirreff and as an exponential regression ... performance indices collected at the two sites 2. Table 2. Data on annual variability in krill biomass density ... parameters, and their relationships to krill abundance and ice cover indices for the period 1978-2003 ...
Meeting Document : WG-EMM-03/61 : Auteur(s): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)
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DISTRIBUTION AND ABUNDANCE OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
to the 2007/08 fishing year. It focuses in particular on Antarctic toothfish catches taken from the ... Abstract: This report is a synthesis of mostly existing information which has been compiled for ... 000 t, about 20% has been taken from the northern grounds, 70% from the continental slope, and 10 ... the purposes of addressing items on the FEMA 2 agenda. It summarises the management of the fishery ...
Meeting Document : WG-EMM-09/40 : Auteur(s): S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)