Résultats de la recherche

1. CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island

   there was a marked change in two kinds of CPUEs, body length and greenness of krill during the fishing ... Livingston Island as the area between 59°30'W and 61°30'W and between 61°30'S and 62°30'S (Figure 1). Two ... 50 40 l- 30 3 o l- ---J: U l- -< U 20 10 o E M JAN L E M FEB L E 10-DAY ... ~ 20 30 48 50 60 e- LATE FE::; ~I= 220'21 I ... :20 30 f-1 [DDLE ~IAF: 210 :::0 U~TE ~IAF: 212) 30 X= 46.0183 SD= 5.23026 ~IA><= 61 I-ml ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Auteur(s): Endo, Y. and T. Ichii

2. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   ), as a function of the fraction of the biomass estimate which is set as the catch for a 20-year period ... pre-exploitation level ( P ) 1992). over a 20-year harvesting period. The resul t s which they ... biomass estimate which is set as the catch for a 20-year period. Three possible fishing seasons are ... drawn at random from pre-specified distributions for each simulation of a 20-year period of harvesting ... ) requested that statistics be provided for a 10- as well as a 20-year period of harvesting. Calculations ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

3. Southern elephant seals and CCAMLR

   subpopulations in the Kerguelen Province, we can suggest two possibilities: first, that the factor(s ... leonina, at Marion Island, (1973 - 1983). S. Afr. J. Sci. 80: 26 - 27. CONDY, P.R. & M.N. BESTER. 1975 ... population biology of the southern elephant seal Mirounga leonina at lies Kerguelen. S. Afr. J. Sci. 80 ... Heard, Marion and Prince Edward Islands, Iles Crozet and Amsterdam and st. Paul Islands. Two pelagic ...

   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

4. Age and growth of Antarctic euphausiacea (crustacea) under natural conditions

   Peninsula and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six ... species Euphausia triacantha, and a three-year life span proposed. Male Euphausia crystallorophias have a ... Paper Title:  Age and growth of Antarctic euphausiacea (crustacea) under natural conditions ... years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years for the ... triacantha, and a three-year life span proposed. Male Euphausia cr¥stallorophias have a shorter life span ... - 369 - SC-CAMLR-VI/BG/24 AGE AND GRcwrH OF ANTARCTIC ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Auteur(s): Siegel, V.

5. Histological study on the ovarian development of mackerel icefish (Champsocephalus gunnari) from the South Georgia Islands

   the specimens ranged from two to five years, estimated from the age/length key presented in Barrera ... recorded. The length and weight ranges were 16 to 49 cm and 20 to 1 050 g respectively. The age groups of ... reproductive behaviours, such as nest guarding (North and White, 1987; Kock, 1989). One representative of ... Antarctic ichthyofauna, the mackerel icefish (Champsocephalus gunnari), has been one of the commercially ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 35–49 : Auteur(s): Macchi, G.J. and E.R. Barrera-Oro

6. Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica

   unfished areas in the South Atlantic and suggested that bottom trawling in the past 20 years has had a ... 30 minutes at 3 knots. The sweeps (25 mm diameter combination rope) were 25 m long. The length of ... only exceeded 50 kg at two stations near the shelf break (stations G and H). The remaining catches of ... fish were mostly less than 20 kg. Catches in the centre of the bay (stations L, M and N) were very low ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Auteur(s): Constable, A.J.

7. A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea based on data from predators

   of two years and a circumpolar distribution, but its biology and ecology are still virtually unknown ... mainly target species from two families, Loliginidae and Ommastrephidae. Fisheries for the latter have ... 51 400 tonnes. M. hyadesi probably has a life span of two years and a circumpolar distribution, but ... . Rodhouse** Abstract Cephalopod fisheries world-wide mainly target species from two families ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 479–480 : Auteur(s): Rodhouse, P.G.

8. Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass

   biomass by acoustic techniques is dependent on a number of factors of which one of the most fundamental is ... at both 38 and 120 kHz between calibrations conducted at the two locations. At 120 kHz, the required ... significant differences in volume backscattering (S v) and target strength (TS) transducer gains were detected ... S v transducer gains at South Georgia (sea temperature at depth of transducer = 2.3 o C) were on ... calibrations conducted at the two locations. At 120 kHz, the required S, transducer gains at South Georgia ... Maximum power, kW Pulse duration, ms* Band width, kHz* Ping interval, s Two-way beam angle, dB Noise ... of which one of the most fundamental is accurate echosounder calibration. The Simrad EK500 ... acoustic survey were 6 dB (four times) less sensitive at O°C than at 20°C. More recently Demer and ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Auteur(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe

9. By-catch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)

   . Unfortunately, Armstrong&#039;s fish by-catch data were not presented in a standardised manner. This paper ... is more than one non-zero observation, the mean of delta-distributed data is estimated as where ... j=21!nJ(n+1)(n+3) ...( n+2j-3) . (3) The variance of delta-distributed data with more than one ... than one non-zero observation is estimated as var,,, (c) = C, d and var,,,(c) are minimum variance ... confidence limits for the estimated mean by-catches of all fish species combined. The data from one haul ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 111–123 : Auteur(s): Watters, G

10. Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3

    , captura total y una submuestra de 30 ejemplares por lance, de los cuales se obtuvo la composicion por ... ' LS - 57°00'LS) yen el Area de las Georgias del Sur. Documento WG-FSA-92/30. CCAMLR, Hobart ... eleginoides) at South Georgia. Document WG-FSA-92/20. CCAMLR, Hobart, Australia. OASIUKOV, P.S, R.S ... . 1961. Catch curves and mortality rates. Trans. Am. Fish. Soc., 90 (2): 181-189. SC-CAMLR. 1990 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar