Résultats de la recherche

1. An assessment of toothfish in Subarea 48.3 using CASAL

   - cided with either the median or a lower quantile of a mark–recapture estimate of vulnerable biomass ... generalised linear mixed model (GLMM), with random vessel effects (Candy, 2004). No data are available for ... consistent with previous assess- ments of this stock. However, this high natural mortality does not seem to ... be consistent with the low growth rates of toothfish, and therefore an alternative lower M was ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Auteur(s): Hillary, R.M., G.P. Kirkwood and D.J. Agnew

2. Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)

   variation. These high-variability areas where the frontal waters converge with Antarctic water masses have ... ° to 25°W) where sub-Antarctic waters merge with the cold Antarctic waters. Analysis of the vertical ... or groups of shoals with a smaller vertical extent of between 20 and 200 m. Daily vertical ... to 8. Compared with the spring season, summer (December to January) witnessed considerable changes ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Auteur(s): Kozlov, A.N., K.V. Shust and A.V. Zemsky

3. Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the southwestern Atlantic

   main line of 20 000 m, with branch lines each with 90 hooks (model 'Ancora', 30 mm gap) spaced at 1 m ... ground of the species was found during spring 1995, with fish varying from 38 to 66 cm TL, and a mean ... from 30 to 60 cm TL, with most fish around 60 cm TL. Sampling on the South Georgia shelf was ... ) mentioned that D. eleginoides has been caught around the Crozet Islands, at depths of 90 to 1 020 m, with ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 105–124 : Auteur(s): García de la Rosa, S.B., F. Sánchez and D. Figueroa

4. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   'model 2' - the model with modifications specified by the Third Meeting of WG-Krill (SC-CAMLR, 1991 ... , ) for tl <_l! e, = e:: + W, / 2 (3) where ty from U [38,42] mm with W, = 10 mm, and ... 50 !, from U [34,40l mm with W,,, = 12 mm. These lengths can be converted into ages using the ... -year period of harvesting are shown primarily in graphical form, with this probability plotted ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

5. Age–length composition of mackerel icefish (Champsocephalus gunnari, Perciformes, Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf

   high. The trawl had a small-mesh liner with 10 mm meshes in the codend. Bottom trawl surveys were ... generator with one trawl station for each 80-100 miles2, with no less than three stations per stratum ... catch per unit effort of 55.6 tonnes/vessel/ day. In 1971 /72 this species, together with ... 1990. During pelagic surveys small juveniles when a midwater trawl with a fine- the largest of ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 133–146 : Auteur(s): Frolkina, G.A

6. Chilean krill fishery: analysis of the 1991 season

   are suggested. File:  17-Marin-et-al.pdf ... 1991 SEASON Victor H. Marin*, Armando Mujica** and Patricio Eberhard*** * ** *** Abstract ... recognise three categories of krill with respect to colour: red, pink and white. Their target is the red ... 1991. The increase during 1987-1988 agrees with data from Miller (1989). 3.2 Spatial Distribution of ... trawling depth was between 44 and 60 m. Our data together with the data presented in Endo and Ichii ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Auteur(s): Marín, V.H., A. Mujica and P. Eberhard

7. Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988

   Island. ( 2) Establishment of baseline studies coordinated with predator (e.g. seal and penguin ... systematic manner and needs to be addressed to validate the results of any survey effort and to assist with ... and will be closely coordinated with us and other nations' research efforts. 2. MATERIALS AND ... the 50 kHz and 200 kHz systems were stratified to compare with the 120 kHz system and to provide ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Auteur(s): Macaulay, M.C.

8. Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys

   trawl with a small-meshed insertion (12 mm mesh) in a trawl bag was used. 418 Mesh density of ... of their biomass as compared with results of control trawlings (coefficient of trawl catchability ... concentrations of myctophids as long bands or spots (isolated schools) with a height of up to 30 m (Figures 1 ... myctophids, with E. carlsbergi accounting for about 85%. Besides this species, G. nicholsi, Krefftichthys ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Auteur(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva

9. Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000

   in the analysis. Distances with positive values indicate they are located offshore of the shelf ... 1999/2000 seasons. Only data with more than 20 hauls per month were used. Starting with December ... each fishing season showed a general pattern with operations starting from the outer shelf, and pro ... - ceeding towards the shelf, with some exceptions (1981/82,1986/87,1992/93) (Figure 3). The mean STPs for ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Auteur(s): Kawaguchi, S. and K. Segawa

10. Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia

    and Dorovskikh (1991), with an age/length key from 1972 used to devise a separate age composition ... correctly calculated mean values are set out below along with the mean age of the population given in ... Mean age 5.8 4.9 4.3 4.1 These results indicate that the mortality rate is probably increasing with ... intervals associated with the mean values, it is impossible to determine whether the results should be ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Auteur(s): Everson, I

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