Résultats de la recherche

1. 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

2. 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

3. 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

4. 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

5. 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 ...

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6. 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

7. 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.

8. 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

9. Fishery Report 2017: Champsocephalus gunnari South Georgia (Subarea 48.3)

   2016. Reported catch 4. In Subarea 48.3 a pelagic trawl fishery targets C. gunnari. The annual ... 1998 1 4520 6 1999 1 4840 265 2000 2 4036 4114 2001 5 6760 960 2002 5 5557 2667 2003 4 2181 1986 ... 1834 2010 3 1548 12* 2011 2 2305 12* 2012 3 3072 999 2013 3 2933 1370 2014 4 4635 33 2015 2 2695 ... from acoustic surveys. 4 Trawl surveys 10. In January/February 2017, the UK undertook a random ...

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10. Scientific Abstracts 1992

    the vicinity of the vessel were also recorded. WG-KRILL-92/4 Further computations of the consequences ... __________________________________________________________________________________________ 4 CCAMLR Scientific Abstracts, 1992 ... catch limit to a fixed fraction of the estimate of krill biomass from a survey” (WG-Krill-92/4) . H ... WG-Krill-92/4, using a simplified version of the model. The results indicate that these estimates are ...

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