Résultats de la recherche

1. On reproduction of Electrona carlsbergi (Tåning)

   . Maturation of ovaries is continuous, and spawning is serial. The spawning season is long and coincides with ... , and spawning is serial. The spawning season is long and coincides with summer/autumn in the Southern ... the Antarctic Convergence, wherein it forms concentrations during the major part of the year (Hulley ... species coincides with the notal zone. A study of gonads in female E. carlsbergi from the Antarctic ... Convergence and the Argentine Basin areas has been undertaken with the aim of determining where and when this ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Auteur(s): Mazhirina, G.P.

2. Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean

   information on Macrourus carinatus along with the first quantitative assessment of the abundance of this ... ). They found that juveniles and adults were segregated in this region, with immature fish located in ... that ground too rough for trawling was encountered. The survey design was modified slightly, with ... GEBCO data proved to be unrealistic in some areas with several squares located outside the 1 500 m ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Auteur(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb

3. Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3

   second net was also confi gured with measure 3. Esperanza The Esperanza did not deploy any specifi c ... . Mitigation measures Atlantic Navigator The Atlantic Navigator was equipped with a seal- exclusion device ... different nets were used by the Top Ocean during the trip. The only mitigation measure em ployed during ... Kaisha Ltd. A section of roof panel netting, measuring 6 x 4 m is removed, and replaced with a panel of ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 195–205 : Auteur(s): Hooper, J., J.M. Clark, C. Charman and D. Agnew

4. Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia

   effective with regard to time and cost. Values of fish growth parameters using the generalised von ... 24 years. This is very close to the maximum age of 22.8 years calculated from Taylor's formulae ... (with annuli indicated): (a) age estimated as 4 years, total length 48 cm; (b) age estimated as 9 years ... effective with regard to time and cost. Values of fish growth parameters using the generalised von ... range of this species extends to deeper than 2 500 m (Moreno, 1991), with the smallest specimens being ... found above 500 m. An increase in mean length of fish with increasing depth has been observed (Zhivov ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Auteur(s): Cassia, M.C

5. Southern elephant seals and CCAMLR

   been recently confirmed for the Macquarie Island stock. The availability of food, competition with ... rapidly growing fur seal populations and competition with fishing fleets have all been suggested as ... recently confirmed for the Macquarie Island stock. The availability of food, competition with rapidly ... growing fur seal populations and competition with fishing fleets have all been suggested as possible ... vary with subpopulations. At Iles Kerguelen, on the other hand, the population decline since 1970 ... degree of long-term fluctuation in cow numbers increased with density. Based upon censuses of parts ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 465-473 : Auteur(s): Bester, M.N. and D.G.M. Miller

6. Observation of seabirds in the Southern Ocean in 1988/89

   poor visibility, heavy fog, snow or blizzard. Binoculars with a magnification of 7x50 were used for ... only with ice distribution patterns over the observation period. According to the data obtained, ice ... (an increase or decrease in the number of species) was not connected with fluctuations in the ... sector (Figure 6). Undoubtedly, this could have been due to the season (late summer/early autumn) as ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 521–542 : Auteur(s): Vagin, A.V. and V.V. Popov

7. An index of per capita recruitment

   recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year y and M ... largest with high values of R 1; increasing M tends to offset this effect but only slightly. A simple ... the functional relationship between spawners and recruits. PCR is biased low with age-specific decline ... in mortality and reduction in the proportion of age-l spawners. Introducing year-to-year random ... with one year of mortality removed: In addition to compounding the results of two PCRy_l ... capita recruitment (PCR). Such a measure could be obtained with surveys in successive years provided ... , R3, R4 . . . are the proportions of N that are in the age-l, age-2, age-3, age-4 . . . year classes ... ; M2, M3, Mq . . . the post- recruit mortality rates for age-2, age-3, age-4 ... year classes; and y ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Auteur(s): Hewitt, R

8. A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula

   the krill resource and is based on a detailed model of penguin foraging patterns combined with catch ... penguin foraging patterns combined with catclh positions. This analysis shows that the overlap between ... of shore-based penguin breeding colonies each year. December to March is the peak breeding period ... by 0.5" latitude) and compares this with catches by fine-scale areas. MODEL DESCRIPTION A model ... a colony with foraging distance being described by a normal density function and foraging ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Auteur(s): Agnew, D.J. and G. Phegan

9. Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1

   of Log,,,CPUE with increasing years in the Livingston Island area (T = -0.695, n = 15, p = 0.0003 ... time of maximum abundance were used. Net-haul data with small sample sizes (i.e. less than 20 hauls ... recruitment based on 2+ krill) values are summarised with values from scientific surveys in the Elephant ... . They showed peaks around the 1980/81, 1981/82 and 1985/86 year classes, and low values in between ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Auteur(s): Kawaguchi, S., T. Ichii and M. Naganobu

10. Trawl bag selectivity in the Champsocephalus gunnari fishery

    were carried out in June 1990 in the South Georgia area concurrently with trawl surveys as part of the ... and the selectivity factor was 3.10 for a mesh size of 80 mm. Comparison of these results with results ... from previous years demonstrates close similarity. A significant increase in modal length (up to 34-35 ... was 3.10 for a mesh size of 80 mm. Comparison of these results with results from previous years ... of 299 80 cm. Comparison of these results with those from previous years shows close similarity ... 1990 in the South Georgia area concurrently with trawl surveys as part of the main biological and ... BMRT Anchar in June 1990 in the South Georgia area concurrently with trawl surveys within the main ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 295–312 : Auteur(s): Bidenko, V.G. and I.G. Istomin

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