Résultats de la recherche

1. An assessment of the impact of krill fishery on penguins in the South Shetlands

   20 or 30 X 30 n miles from recent surveys (1989/90 and 1990/91). The krill biomass for each of ... period for the following three months (Figure 2). Fishing was initially (in early and mid-January ... comprise 94, 4 and 2% respectively of the total penguin population in Subarea 48.1. Where an estimate of ... January; Figure 7(2)) the krill concentration increased over the northern (268 X 103 tonnes) and ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Auteur(s): Ichii, T., M. Naganobu and T. Ogishima

2. Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf

   30 g weight and age of 2 to 3 years. The sex ratio of fish is actually the same in all size classes ... . 2 . MATERIALS AND METHODS The results of age determination and the data on the length-weight ... of 2 to 5 years are most abundant. Sexual maturity is attained by fish at 11 to 13 cm length, 20 to ... ) Baranov method. The data on age and age/length key (Figure 2) for the second half of 1978 (Le. prior to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Auteur(s): Shlibanov, V.I.

3. Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish

   . Collecting and analysing data to better CCAMLR Science, Vol. 19 (2012): 17–30 17 ESTIMATING UNACCOUNTED ... 27 4 14 25 0 10 16 4 Webber and Parker 30 Table 12: Estimated unaccounted fishing mortality ... : hij hi hijG L u= ´ (2) and hij hij hij hijK L u s= ´ ´ (3) where hijs was the mean hook spacing ... (Table 2). In the groomed data, 85% of sets recorded zero hooks lost attached to sections of longline ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Auteur(s): Webber, D.N. and S.J. Parker

4. Fish distribution and biomass in the Heard Island zone (Division 58.5.2)

   following changes were Each haul was for 30 minutes duration on the made with respect to summer 1992 ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 Standard length (mm) Standard length (mm ... CCAMLR Science, Vol. 2 (1995): 1-20 FISH DISTRIBUTION ... most species during autumn 1990. Fish Distribution and Biomass, Heard Island Table 2: Number ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 1–20 : Auteur(s): Williams, R. and W.K. de la Mare

5. Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48

   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 ... , but, as a first approximation, we will ignore these concerns. . (2) Longterm costs of collecting ... among subareas are: (1) Historical catches, (2) Even division among subareas, (3) Shelf area, (4 ...

   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

6. The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design

   Parallel 2 Meridian Projection Shift Scotia Sea WGS84 Metres 54"30'S 59"30fS 40°W 62"W 0, 0 Antarctic ... approximately 30 days of ship time. Other nations were also able to undertake smaller-scale regional acoustic ... BKJlIOYZln 2 K ~ ~ I I H O M ~ C U I T ~ ~ H ~ ~ X OKeaHMYeCKPlX 7OHbI: OAHY - Ha FOrO-?anaQe A T ~ ~ H T I ... Antarctic Peninsula 65"S, 50°W 330" 52"s 68"s 79"W 40°W Table 2: Parameters used for the Lambert Coi ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Auteur(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly

7. Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area

   which the year is de- fi ned as the period from 1 July to 30 June of the next year (Shcherbich, 1975 ... length of a yearling to be 5.6 cm and the mean length of 2-year-old fi sh to be 15.4 cm, while Kochkin ... ) reported the mean length of a yearling to be 9–11 cm and that of 2-year-old fi sh to be 17–19 cm. For ... and examined using iri- descent light under a binocular microscope at 8 x 2 magnifi cation. Total ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Auteur(s): Shcherbich, L.V

8. Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery

   seabed between the first and last hooks in a set of 100-360 baskets would be 8.3-30 km respectively ... the In Sung 66 was 1/95 hooks, or 1 /30 S; weight pull- backs occurred about every 8 s. Hook-ups and ... et6 atteintes avec des poids de 6,5 kg places 2 70 m d'intervalle. L'imrnersion la plus rapide & 4 m ... . Toothfish is caught on the seabed (c. 800- 2 500 m depth) near sub-Antarctic islands and near the southern ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Auteur(s): Robertson, G.G

9. Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf

   concentrations were situated near the bottom or at 10 to 30 m above the bottom during daylight hours (09:00 to ... may then be used in improving trawl survey techniques. 2. MATERIALS AND METHODS The study used ... catches decreases abruptly from 13-14 to 2-8 tonnes per hour of fishing. At night, catches were usually ... n=3 n=2 n=1 n=5 n=4 n=6 n=6 n=5 n=4 n=4 n=2 n=2 January 1983 BMRT Mid- 5.3 3.8 9.6 5.1 5.7 5.5 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Auteur(s): Frolkina, J.A. and V.I. Shlibanov

10. Modelling krill recruitment

    to Justin Cooke and an anonymous reviewer for (30) helpful comments on the draft text of the paper ... the delta method approximation for the variance of a function of random variables. Equation (2) is ... the quotient of two random variables, and hence the delta method expansion for the variance of (2 ... ) 2 ab c5 = where T(x,y) denotes a random deviate from a (a+b12(a+b+1) gamma distribution with ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Auteur(s): W.K. de la Mare

Pages