Résultats de la recherche
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Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia
range of this species extends to deeper than 2 500 m (Moreno, 1991), with the smallest specimens being ... AND METHODS Age 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 1 22 23 ... calculated using the radius-age method (Aubone and Hemandez, 1996). RESULTS Mean S.R. 2 013.60 2 ... 764.36 1 894.60 2 122.08 2 526.24 2 072.69 2 470.50 1 529.85 1 593.63 1 838.90 2 173.46 2 ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Auteur(s): Cassia, M.C
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric characteristic?
2. METHODS For the purposes of this analysis, I consider distributions of the morphometric ... - J,11 = ca [equation 1] and therefore a 1 o c (2) -=- and is independent of (J or ~. The sample ... necessary. True and apparent means of selected Adelie penguin characteristics are shown in Table 2. Bill ... corresponds to the mean of the combined sample, ~2, and ~ and ~' and (J and cJ' are the means and standard ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 259–272 : Auteur(s): Agnew, D.J.
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Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
Scotia Sea and remnants can be identified as far east as the Greenwich Meridian. 2. SIEDLECKI, 1986/87 ... the Bransfield Straits. 2.4 Group #2 South of Elephant Island This area (Figure 7) is similar to ... cluster of stations centered at 60° 50'S and 55° 45'W (as well as station 217 in group #2). 2.6 Group ... Siedlecki data within group #3 and at station 217 of group #2 reveal the presence of blends of Pacific deep ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 161-184 : Auteur(s): Gordon, A.L.
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[node:field-journal-volume]:37-51
value was attributed to each age estimate, as follows: 1. certain count 2. uncertainty of ±1 year 3 ... . uncertainty of ±2 years 4. uncertain count of more than ±2 years 5. unreadable. All otoliths were read ... scale for both males and females: 1. immature 2. maturing 3. ripe 4. running ripe 5. spent. Data ... size class at which more than 50% of the fi sh sampled were at maturity stage 2 or greater. The ...
Science Journal Paper : 37–51
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Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea
value was attributed to each age estimate, as follows: 1. certain count 2. uncertainty of ±1 year 3 ... . uncertainty of ±2 years 4. uncertain count of more than ±2 years 5. unreadable. All otoliths were read ... scale for both males and females: 1. immature 2. maturing 3. ripe 4. running ripe 5. spent. Data ... size class at which more than 50% of the fi sh sampled were at maturity stage 2 or greater. The ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Auteur(s): Marriott, P., P.L. Horn and P. McMillan
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Food consumption by predators in a CCAMLR integrated study region
-CAMLR-VIIJ/BG/12, SC-CAMLR-VIII/BG/15). 2. CONTENTS The present paper comprises: Part 1: A ... estimating food consumption of breeding populations of South Georgia seabirds. Part 2: (a) Some selected ... . 2. DATA PREPARATION For all data input to the program the time-base used 1 September as day number ... Appendix 2. Note that although the names within the program refer to Euphausiids, Cephalopods, etc., the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Auteur(s): Croxall, J.P., C. Ricketts and A.G. Wood
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
of recap- ture was 1 317 mm. Days-at-liberty ranged from 1 to 2 529, with 898 recaptures occurring ... -segment function 2 ( ) exp 0.0051 0.0494 ; 1030 100 400 1 ; 200 400 200 1 ; 400 1030 0 ; 200 L P L L ... popula- tion of fi sh, by μ(A, θ) so that E(L(Pop)|A) = μ(A, θ) = L∞ (1 – exp{–κ(A – t0)}) (2) and L ... K K−′ = + for j = 2,…,r – 1 and as con- venient endpoints set ( )1 1 2 /2r r r rK K K K ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Auteur(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Use of the Leslie stock depletion model for the assessment of local abundance of Patagonian toothfish (Dissostichus eleginoides)
15 data series: 8 from Zone 1 and 7 from Zone 2. The CCAMLR experimental protocol in 1993/94 ... CPUE data were taken. Table 2 provides a summary of the data series for which the correction of the ... last column of Table 2 should have been excluded from the analysis, because catch weights were used ... regression analyses is provided in Table 3. The gradients and P values Table 2: Summary of the data series ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 55–77 : Auteur(s): Parkes, G., C.A. Moreno, G. Pilling and Z. Young
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Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996
, 1986, 1989a; Nast et al., 1988; Tiedtke and Kock, 1989; Grohsler, 1992) (Table 2). The first survey ... to be carried out after the closure of the fishery was conducted in November/December 1996 (Table 2 ... shelf around Elephant Island at depths of 50 to 550 m from 1981 to 1996 (Table 2). The surveys were ... variation in the time needed to deploy the trawl, repeated sites were often only within 1 or 2 n miles of ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Auteur(s): Kock, K.-H
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
resultant 77 boxes are shown in Figure 2. The model system was created as a continuous chain around the 1 ... en t A re a C ( S ou th G eo rg ia ) 56 S 2 0 0 0 m 1 0 0 0 msh ag W s ha ... 2 0 0 0 m 1 0 0 0 msh ag W s ha g N W ge or gi a S ge or gi a E ge or gi a Fishing ... 3 0' W M an ag em en t A re a C ( S ou th G eo rg ia ) 56 S 2 0 0 0 m 1 ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Auteur(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark