Résultats de la recherche
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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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Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring Program
(% Current Value) (20 %) 5 5 (30%) 2 3 Sample sizes required for five years of monitoring and a = 0.10 ... Difference (d) ( 1 0 %) 34 54 (% Current Value) (20 %) 9 1 4 (30%) 5 7 Sample sizes required for five ... (30%) 4 6 418 0.9 88 25 7 4 71 20 0.9 72 1 9 9 71 1 8 8 Table 4 ... = 0.05 Smallest Difference (d) ( 1 0 %) 24 38 (% Current Value) (20 %) 7 1 0 (30%) 4 5 Table 5 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 411–432 : Auteur(s): Whitehead, M.D.
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Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas
about 4 times the initial yield at the end of the 20-year simulation, doubling in four years for both ... standard errors are also produced for each of the 20-year runs. For each set of parameters, ten ... for South Georgia stocks and 19 to 22 for Kerguelen stocks. The averages of the ten 20-year ... . Average of the Ten 20-Year Projections for Stock Size in Numbers (X 10- 6 ) and Weight (X 10-3 ) Stock ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Auteur(s): Hennemuth, R.C., K.D. Bisack and G. Duhamel
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Age and growth of spiny icefish (Chaenodraco wilsoni Regan, 1914) off Joinville–D’Urville Islands (Antarctic Peninsula)
1–5 years for males and 1–4 years for females of C. wilsoni. Applying the von Bertalanffy (VB ... males. Age-at-sexual maturity was estimated to be about 2 years for females and 2.5 years for males ... consisted mainly of adult individuals between 1 and 3 years of age, with very few older fish. File ... population (c). 0 5 10 15 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) a(a ... 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) c(c) Age (years) To ta ... 15 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) b(b) Age (years) 0 ... dominated by a strong peak at 26 cm TL, with two other well-defined modes at 20 and 30 cm TL (Figure 3b ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 115–130 : Auteur(s): La Mesa, M., A. De Felice, C.D. Jones, K.-H. Kock
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
-.. "'" .' .'"."."." " ....... "--.... '" .. " .. " ............ " . --. " .. ""." .......... " ... "." ..... " .... -.. " .. --." .. --............... ' ... " ---......... " ............. " ..... -.. " .. ,,' ...... . .._ ...... o IL-______________ L-______________ ~ ______________ J-______________ ~ o 10 20 30 40 dec 13 ... -.............. _ .... " ................ " .... " .... " .......... " .... " .......... " ......... -......... " ................ " .... " ............... " .... " ................... " .... -........... " .... ~ .... -........... --............ " ..................... " .......... " ......... . . -.-.•• ~ ..••.••.•...••.• H._ ••..••• ~ ••••..•.•• a ...... ~.~ ••.... 30 1 ... :=" ....... _ ..... --. -_ ........ _._ ............ -.:. .... ;.; ....... -.... -......... -;.. . .. -.... -... _ .............. ~ .... _._ ", ................... " .................... _ ••••••• 'H' . ... ~ ....... -.-........ -.... ~.- .... - 20 1 ... season). Sampling of krill introduces the problem of net selectivity which, together with krill swarming ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Auteur(s): Marschoff, E. and B. González
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Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass
WG-KRILL-91/30 ANALYSES OF ACOUSTIC LINE-TRANSECT DATA ... sections approximately 30 n miles in length. Each section was further divided into 1 n mile integration ... consumption rate is spread throughout the year and should not be compared directly with standing stock ... may be available in the region in any year. For 6.7 x 106 tonnes to be available in a year and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Auteur(s): Murphy, E., I. Everson and A. Murray
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Histological study on the ovarian development of mackerel icefish (Champsocephalus gunnari) from the South Georgia Islands
individuals (45%) was found, together with a relatively low occurrence of females that spawned or were in ... recorded. The length and weight ranges were 16 to 49 cm and 20 to 1 050 g respectively. The age groups of ... the periphery, in contact with the oolema. The zona radiata increases in thickness (20 pm), showing ... incorporated here. villosus (Muller). J . Fish Biol., 20: 143-154. Mackerel Icefish Ovarian Development ... proportion of juvenile individuals (45%) was found, together with a relatively low occurrence of females ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 35–49 : Auteur(s): Macchi, G.J. and E.R. Barrera-Oro