Résultats de la recherche

1. Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors

   Palmer Station staff.) 3 Data downloaded from www.antarctica.ac.uk/met/gjma/ 4 In order to avoid ... en gu in 28 .0 d ay s ( 0 .3 ) (2 7. 4, 2 8. 0, 2 8. 7) ba se lin e[ C H P E ... ] B as el in e C ID fo r ch in st ra p pe ng ui n 46 .9 d ay s ( 0 .2 ) (4 6. 4 ... , 4 6. 9, 4 7. 3) la t.e ff E ff ec t o f l at it ud e (l at it ud e m ea su re d ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Auteur(s): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece

2. Sea-surface temperature and krill catches around South Georgia in December–February 1989–1991 and 1999–2001

   guration of isotherms. The 0ºC isoline on maps of SST anomalies moved northward by 4–5° latitude from ... Jan- uary 1991. The temperature dropped by as much as 4°C for waters to the northwest of South ... 1991 (Figures 3 and 4) with anomalies in 2000 and 2001 (Figures 5 and 6) reveals a signifi cant ... catch of krill was 81 369 tonnes and 123 562 tonnes respectively, the catch in 1999/2000 was only 4 ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 165–174 : Auteur(s): Vanyushin, G.P

3. A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia

   r u 1 . 1 6 ~ a M e X A y CYMTblBaHMRMll 6 b l n a y 0 6 0 1 4 ~ C q ~ T b I B a ~ e n e f i ... in fact ranged between 4 and 40 years, indicating slower growth and a much less productive fishery ... - estimated ages was calculated to be $4 million in 1981 Canadian dollars. Stewart (1926) validated the ... suckers grew quickly at ages 4-7 years, few surviving beyond an age of 9 years. Annual mortality was ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Auteur(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson

4. 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

   -dependent selectivity function The trawl fi shing selectivity function used here is described by the 4 ... ⎣ ⎦ ⎣ ⎦⎣ ⎦ ∈ = ∑ (4) where φ( ) is that standard normal density function, Φ( ) is the corresponding cumulative ... density func- tion and Gj = Kj – L∞ (1 – exp{–κ(a – t0)}). It can be seen from equation (4) that ... replacing p* by p’ does not change the probability density func- tion (4). If it is assumed that p’ is ...

   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

5. Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers

   from 200–500 mg of muscle tissue by homogenisation and digestion with proteinase-K at 55°C for 4 h ... with 5- and 4-base restriction enzymes following methods successfully used for D. eleginoides (Smith ... ATPase, ND1, ND2, ND3/4, COI, COII, cytochrome b, and two portions of the control region, and the ... performed in 20 μl volumes for a minimum of 4 h, following the manufacturer’s recommendations (New England ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Auteur(s): Smith, P.J. and P.M. Gaffney

6. Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana) from the Ross Sea

   , but most (61.5%) were scored as reada- bility 4 (bands very unclear over at least part of the thorn ... skates having large discrepancies between the two readers. 10 20 30 R ea de r 2 , r ea di ng 4 ... 2 , r ea di ng 4 (y ea rs ) ( m ea n ± 2S E ) 40 30 20 10 N = 96 Francis and ... growth curves (Figure 4) for skates that live in cold deep water, although no other skate aged so far ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 211–220 : Auteur(s): Francis, M.P. and M.J. Gallagher

7. Fishery Report 2017: Dissostichus spp. (Subarea 48.2)

   Antarctic toothfish (D. mawsoni) and 4 tonnes of D. eleginoides. In 2017, 74 tonnes of D. mawsoni was taken ... and D. eleginoides in Subarea 88.3. Year D. mawsoni D. eleginoides 1998 <1 2015 31 4 2016 71 4 ... in Subarea 48.2 in 2015, 2016 and 2017. Tag releases and recaptures 4. In 2015, a total of 157 ... develop fishing activities of Dissostichus spp. in Subarea 48.2. 4 12. In addition, Chile ...

   Document : Site Section: Publications

8. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   : (1) immature; (2) maturing; (3) ripe; (4) running ripe; or (5) spent. Fish were designated as being ... within-reader test they were 6.91 and 9.77%. Test results are shown in Figure 4. 297 Age estimation ... plot (Figure 4) suggests that the reader generally assigned higher ages to fish that were between 10 ... Figure 4: Bias plots of within- and between-reader comparison tests. The expected 1:1 (solid line) and ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Auteur(s): Marriott, P.M., M.J. Manning and P.L. Horn

9. Results of fish stock assessment survey, South Georgia region, November - December 1986

   headrope height was approximately 4 m. (Zaucha pers. comm.). Distance over bottom was recorded to the ... precise estimators. From the survey data, N. rossii biomass was estimated to be 4 500 mt (from the ... obtained north and southeast of South Georgia (Figure 4), with the single largest catch (204.8 kg ... near 26 cm (age 4) is not evident; and the peak at 38 cm would correspond to age 8 fish (1978;79 year ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 143-183 : Auteur(s): Gabriel, W.L.

10. Optimization of survey sampling design in the detection of interannual variability and prey size selectivity in the diet of penguins

    Antarctica was estimated as four times as expensive as on the mainland. In our design (4-level nested ... . Variance Number of Sam )lin~ Dates Component 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10.298 13 6 4 3 3 2 2 ... 2 2 2 2 2 2 2 2 7.3750 19 8 5 4 3 3 2 2 2 2 2 2 2 2 2 3.2674 60 22 13 8 6 5 4 4 3 3 3 3 2 2 2 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 551–559 : Auteur(s): Marschoff, E. and B. Gonzalez

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