Résultats de la recherche
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Growth and age/length structure of populations of Notothenia (Lepidonotothen) squamifrons (Nototheniidae) in various areas of the Indian sector of the Southern Ocean
paper. It was found that during the first years of life the linear growth rate is 3 to 5 cm per year. It ... decreases by a maximum of 1 cm during the last years of life. Maximum annual weight increments of 100 to 120 ... 'I 'I 'I 1000 500 fO 20 30 Y Y 'I 40 2/ / / / / / / / , ,1 I I ... 1972; 2=1980 to 1986. 133 30 20 f978 n=770 t=7,5 fa 20 (979 n=2327 fa 20 1980 (1;5426 ... 10 '-ID 1986 n=68S9 t=8,O 3D 20 to ItO 30 1987 rt=6223 t=7,8 20 fO 8 12 f6 20 24 28 32 36 ... composition of N. squamifrons in the Ob Bank area. 134 30 r 20 ~ 10 20 to 30 20 10 20 10 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 123–139 : Auteur(s): Zaitsev, A.K.
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
single year. Then, for the following two years, that subarea would be closed to fishing. For example, if ... 242 1.5 million tonnes of krill were taken from Subarea 48.1 this year, it would be closed to ... Shetland Islands. Document WG-CEMP-90/30 Rev. 1. CCAMLR, Hobart, Australia: 24 pp. CROXALL, J. 1990 ... Penguins in the South Shetland Islands, Antarctica. British Antarctic Survey Bulletin, 81: 19-30. 247 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 237–249 : Auteur(s): Watters, G. and R.P. Hewitt
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Cephalopod research in the Antarctic
Scotia Sea. The estimates, 34.2 million tonnes and 3.7 million tonnes per year respectively ... data in turn may be useful, in the future, for predicting year class strength of exploited species ... span is approximately one year; spawning occurs once and is quickly followed by death. Size ... year class. However, this may reflect selective feeding by the predators and further information from ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 323-334 : Auteur(s): Rodhouse, P.G.
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Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)
standardise hooks to the 'balanced' type with a 30 mm gap. The range of hook sizes analysed was therefore ... increase their activity in relation to the lunar cycle at this time of the year. Some of the highest ... opportunities offered by the database and because the differences between the hooks used this year are less ... different sizes) and incidental mortality clearly demonstrates that hooks equal to or larger than 30 mm in ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Auteur(s): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen
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Catch per unit effort and proportional recruitment indices from Japanese krill fishery data in Subarea 48.1
met en evidence une variation interannuelle plus importante sans tendance aucune. I / I H A ~ K C ... time of maximum abundance were used. Net-haul data with small sample sizes (i.e. less than 20 hauls ... 1 3264 615 13 441 0.91 1988/89 7 2538-3910 290-707 13, 15, 20 4342 9.45 Elephant ... 12.2 1981/82 1 3264 615 13 334 0.30 1989/90 5 2538-3608 290-707 13, 15, 18, 20 1815 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 47–63 : Auteur(s): Kawaguchi, S., T. Ichii and M. Naganobu
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Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90
hydrodynamic characteristics of the area, for example a complex current around the islands together with ... north-east of the region. The fleet was observed drifting with the current together with krill ... 11-15 November 16-20 November 21-25 November 26-30 November Number of Vessels 2 2 2 ... islands together with topographically-induced effects. Except in November 1989, temporally and spatially ... current together with krill aggregations. A maximum CPUE (3.8 tonnes/hour) was recorded at the beginning ... Soviet commercial fleet in Subarea 48.2 during the 1989/90 season, together with information on CPUE ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Auteur(s): Sushin, V.A
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International CCAMLR applied research and monitoring program, Prydz Bay priority area
Australia towards the first five years of an International CCAMLR Applied Research and Monitoring Program in ... the direct contribution which Australia proposes to make to a first five year program in this region ... year to year fluctuation in the abundance and distribution of the selected consumers and their key ... every third year. 4.5 Elephant Seals While the main thrust of the CCAMLR approach to ecosystem ... for information on feeding throughout the year, the Australian contribution is centred upon shore ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 283-295 : Auteur(s): Australia
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
-growing with a moderate longevity; the maximum estimated age was 14.3 years. Von Bertalanffy parameters ... derived for both sexes combined are: L ∞ 22.1 cm SL; K 0.167 y –1; t 0 –0.4 years. Parameter estimates ... –11.0 and 15.1–15.5 cm. Mean lengths of 4.9 and 7.3 cm (at ages 1.3 and 2.3 years respectively) are ... to 9 years. File: 05sutton-horn.pdf ... 5 6 7 8 9 10 11 12 13 14 Age (years) Fr eq ue nc y Age (years) Fr eq ue nc y 50 40 30 20 ... measured fresh on board and again after one year stored frozen at –20°C did not differ in length. Von ... aged Antarctic silverfish sampled from the Ross Sea. 0 5 10 15 20 25 30 35 4.0-4.5 5.1-5.5 ... 8.1–8.5 7.1–7.5 6.1–6.5 5.1–5.5 4.0–4.5 35 30 25 20 15 10 5 0 Figure 8: Unscaled ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Auteur(s): Sutton, C.P. and P.L. Horn
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
estimated to be –0.6 years and residual variance 2.9. Age distributions of toothfish caught by two vessels ... trawlers and longliners at Kerguelen, and longevity was estimated to be 36 years. Total instantaneous ... ge ( ye ar s) 0 10 20 30 40 50 Reference age (years) 0 10 20 30 40 50 E st im at ed a ... Estimated age (years) 0 10 20 30 40 50 T ot al le ng th ( cm ) 0 20 40 60 80 100 120 140 (a ... 1 5 6 1 3 2 1 120 1 1 1 1 130 1 Total 1 10 20 39 39 21 30 ... 0.04 0.04 0.04 0.04 0.01 0.03 TL 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36+ Total 40 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Auteur(s): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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Status of the Polish FIBEX acoustic data from the West Atlantic
acoustique du krill (SC-CAMLR, 1991a). Cette analyse met en evidence le fait que la densiti. acoustique est ... (1986): M V B S = ~ O ~ O ~ L - ~ O ~ O ~ A R - S L - V R + 20 log R. + 2aRo - 10 log (c 212) - 10 ... C is (BTOMASS, 1991). an equipment constant (20 dB). MVBS values with time and positional data ... reflect biomass levels that were close to the seasonal maximum. However during 1981, the year of FIBEX ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Auteur(s): Trathan, P.N., J. Kalinowski and I. Everson