Résultats de la recherche

1. Modelling variability and estimating power to detect change in Adélie penguin fledgling weights

   year, but there was no evidence that the rate of decline differed between years. A consequence of this ... statistical models were developed from first principles and incorporated both within- and between-year ... at a single time each year, without substantial loss of power to detect change. Further modelling ... the number of birds weighed in each five-day period from 50 to 30 without substantial loss of power ... than 30 birds each year. This is the case for both one- and two-tailed tests with a power greater ... birds, or (c) 30 birds each year. Change detected for three to five years of monitoring after change ... breeding seasons (1990/91 to 2001/02) which com- mence in October of one year and finish in late March of ... variance of ˆ xM is a function of two variance components, the between-year variance ( 2Sσ ), and the ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Auteur(s): Emmerson, L.M., C. Southwell and J. Clarke

2. Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)

   in the previous year, the remainder were largely partly full (15% held traces of food, 20% held ... . Total length (cm) 60 80 100 120 140 160 180 200 N um be rs o f f is h 0 20 40 60 80 100 120 ... f f is h 0 20 40 60 80 100 120 2001 fishing season 2002 fishing season females n = 2 234 x ... were dominated by squid (20–33 cm mantle length), with remnants of small fi shes in one stomach and ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Auteur(s): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet

3. The 1991/92 fishery for Dissostichus eleginoides in Subarea 48.3

   November 1991 to 10 March 1992. A total of 3 382 tonnes was taken by one Bulgarian, five Russian and eight ... Russian c 20 to 25 mm 120 cm 2400 - 4800 Russian d 20 to 25 mm 120 cm 13500 Russiane 25 to 30 mm 120 cm ... ler.gth (cm) 40 50 60 70 itl --l .r: ~ :J 0 (f) 80 90 100110120130140150160170180 Standard ... '0 250 .. .., 200 .0 E " 150 :z 100 50 0 40 50 60 70 80 90 100110120130140150160170180 ... 0 0 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 40 50 60 70 80 90 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 31–48 : Auteur(s): Agnew, D.J. and C.A. Moreno

4. Killer whale (Orcinus orca) and sperm whale (Physeter macrocephalus) interactions with longline vessels in the Patagonian toothfish fishery at South Georgia, South Atlantic

   hauling site. Observers reported that when vessels steamed away for between 20 and 30 n miles, killer ... H 302 14 4.6 46 15.2 0 0 I 319 14 4.4 78 24.5 20 6.3 J 712 30 4.2 119 16.7 14 2 K 346 12 3.5 18 ... –20 12 6.5 21–30 2 1.1 Table 4: The times at which interactions occurred with killer whales ... the frequency of killer whale occurrence between two adjacent shallow water areas, one of which had ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 111–126 : Auteur(s): Purves, M.G., D.J. Agnew, E. Balguerías, C.A. Moreno and B. Watkins

5. Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000

   Entropy (MaxEnt) reconstructions of krill distribution and estimates of mean krill density within two ... survey boxes (dimensions 80 km × 100 km) north of South Georgia. The reconstructions were generated from ... 80 km transects in each box, providing about 1 600 density estimates per box. The MaxEnt technique ... krill distribution and estimates of mean krill density within two survey boxes (dimensions 80 km × 100 ... ( 19 97 ), JR 28 ( 19 98 ), JR 38 ( 19 99 ) an d A T L D ( 20 00 ). A xe s ar e ... been determined at approximately 0.5 km intervals along each of the ten 80 km transects in each box ... rectangles d’étude (dimensions : 80 km × 100 km) au nord de la Géorgie du Sud. Les reconstructions sont ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Auteur(s): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins

6. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

   able to narrow the estimates of production from 75- 1 350 million tonnes per year (a factor of 20) to ... conducted regularly in some areas for nearly 20 years, and there is now a good appreciation of the range ... abundance has been subject to considerable research over the last 20 years (Greene et al., 1998), and it ... area away from the known high-density areas of the South Atlantic. As such it may be an underestimate ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Auteur(s): Nicol, S., A.J. Constable and T. Pauly

7. Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000

   biomass is shown. About 64% of the krill biomass was concentrated in krill swarms in the upper 80 m depth ... 20 00 19 83 19 90 Po te nt ia l F is hi ng G ro un d s (J an ua ry ... 59°S 60°S 61°S 200 g m-2 20 g m-2 2 g m-2 0.2 g m-2 31°W 30°W 29°W ... ’ 52°29’S D ep th (m ) 20 40 60 80 100 120 140 160 180 200 220 240 157 ... °S 57 °S 56 °S 55 °S 54 °S 53 °S 52 °S 240 220 200 180 160 140 120 100 80 60 40 20 2 g ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Auteur(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky

8. Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile

   80 90 E ffo rt ( ha ul s ob se rv ed ) (a) 0 5 10 15 20 25 30 35 40 45 Jan Feb ... 20 30 40 50 60 70 80 90 E ffo rt ( ha ul s ob se rv ed ) (b) (a) (b) Hucke ... Sep Oct Nov Dec Month S pe rm w ha le s (in di vi du al s) 0 10 20 30 40 50 60 70 ... le ng th ( m m ) (a) y = 6.2936x + 173.06 R2 = 0.8552 0 5 10 15 20 25 30 40 50 60 70 ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Auteur(s): Hucke-Gaete, R., C.A. Moreno and J. Arata

9. By-catch of fish in the krill fishery

   55 1335 1.16 75 9 2 60 23 46 18 780 600 70 100 1650 1.16 76 10 2 60 26 46 20 230 460 30 90 730 1.50 ... ~ «l ,!:1 p.. S- CIl x ,!:1 U x o xx X" " o 10 20 30 40 50 Krill CPUE ... have only a minor effect on the icefish. Approximately one haul in 20 was however taking large amounts ... 7 400 500 40 40 30 1745 1.83 71 20 4 54 14 35 18 250 470 545 2.25 86 10 5 55 0 33 47 3000 3000 70 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 381–401 : Auteur(s): Everson, I., A. Neyelov and Y.B. Permitin

10. Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory

    0.047 mm day –1, which is too slow to support the hypothesised 2-year life-span of this animal in the ... slow to support the hypothesised 2-year life-span of this animal in the field. Growth conditions of ... postulada para este animal en la region. Se discuten las condiciones de crecirniento del krill en el ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Auteur(s): Ikeda, T. and P.G. Thomas

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