Résultats de la recherche

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

   distribution, but abundance is lower and less variable with location and between surveys. Dissostichus ... lower and less variable with location and between surveys. Dissostichus eleginoides is widespread over ... - Bottom trawl, 36.9 m headline length, with 50 mm mesh cod end liner. All meshes 'diamond' pattern ... . Ground gear with 35.6 cm rubber or steel bobbins, 2.4 X 1.5 m vee doors, 35 m bridles and 25 m sweeps ... . Survey Start 22 May 1990 23 January 1992 29 August 1993 Net performance was monitored with a ...

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

2. Results of a longline survey on seamounts in the southeast Atlantic and in Subarea 48.6 and Division 58.4.4

   toothfish (Dissostichus eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the ... structure of D. eleginoides caught. Lengths of individual D. eleginoides generally increased with depth ... with the highest catch (weight) per unit effort was 600 to 800 m, although absolute values varied ... eleginoides), with 2 822 individuals caught (83% of total catch). Grenadiers of the genus Macrourus were the ... caught. Lengths of individual D. eleginoides generally increased with depth although this trend may be ... . Females accounted for 70% of individuals of more than 90 cm in total length. The stratum with the highest ... %). Les hauts-fonds se distinguent par la topographie du fond marin, la composition specifique des ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 99–116 : Auteur(s): López Abellán, L.J. and J.F. González Jiménez

3. Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island

   the surface throughout the day. With regard to body size and maturity of krill in the inshore foraging ... dominant with occasional occurrences of juveniles (modal length 21 mm). In contrast, in the offshore ... close to the surface throughout the day. With regard to body size and maturity of krill in the inshore ... dominant with occasional occurrences of juveniles (modal length 21 mm). In contrast, in the offshore ... Program). In accordance with CEMP protocols, studies have been carried out since 1986/87 by NOAA ... Kaiyo Maru in cooperation with NOAA (AMLR, 1991). The objectives of this study were: (i) to locate ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Auteur(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu

4. Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area

   with historical information on offshore commercial fishing and with the results of scientific surveys ... fishery in the area in the late 1970s. This interpretation is consistent with historical information on ... offshore commercial fishing and with the results of scientific surveys in the area. Le contrble des ... , whereas the stock of black rockcod (Notothenia coviiceps), a non- commercially fished species with ... locations. This analysis is complemented with data on the availability of the relevant fish species taken ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Auteur(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux

5. Midwater trawl catchability in relation to krill and possible ways of assessing gross catch

   and netting and also the probability that krill will come into contact with various parts of the net ... as it passes through the trawl sides. Studies were based on the results of 250 hauls made with a 72 ... /308 trawl. Catchability was worked out with the aid of fine-meshed chafers, hydroacoustic methods and ... theoretical calculations. A comparison of the experimental hydroacoustic assessment with the calculated one ... and also the probability that krill will come into contact with various parts of the net as it passes ... through the trawl sides. Studies were based on the results of 250 hauls made with a 72/308 trawl ... . Catchability was worked out with the aid of fine-meshed chafers, hydroacoustic methods and theoretical ... calculations. A comparison of the experimental hydroacoustic assessment with the calculated one demonstrated ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Auteur(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov

6. On reproduction of Electrona carlsbergi (Tåning)

   . Maturation of ovaries is continuous, and spawning is serial. The spawning season is long and coincides with ... , and spawning is serial. The spawning season is long and coincides with summer/autumn in the Southern ... species coincides with the notal zone. A study of gonads in female E. carlsbergi from the Antarctic ... Convergence and the Argentine Basin areas has been undertaken with the aim of determining where and when this ... analysis. Preparation and histological treatment was conducted in accordance with standard methods ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Auteur(s): Mazhirina, G.P.

7. Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina

   mesh sizes (47 and 60 mm) were used with a bottom trawl of 32 m head rope. Catch data were collected in ... . Sampling tows, including some tows inside the 12 Nm zone, were made with 47 mm mesh size codends. Fifty six ... determinations. The total catch with 60 mm mesh size codends was 1305.4 tons with a mean CPUE of 1822 kg/hour. C ... of C. gunnari were found with modes of 18 and 28 cm. The length range of C. aceratus was 25–72 cm. P ... mm) were used with a bottom trawl of 32 m headrope. Catch data were collected "in 249 hauls using ... , including some tows inside the 12 Nm zone, were made with 47 mm mesh size codends. Fifty six fish samples ... age determinations. The total catch with 60 mm mesh size codends was 1305.4 tons with a mean CPUE of ... catches two length groups of C. gunnari were found with modes of 18 and 28 cm. The length range of C ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Auteur(s): Kreft, K. and J. Szynaka

8. Characteristics of krill swarms from Prydz Bay

   Euphausia crystallorophias. An increase in swarm length was seen with increasing distance from the coast ... crystallorophias. An increase in swarm length was seen with increasing distance from the coast. Resume Le jeu ... before reaching the edge of the continental shelf. Data were collected with a Simrad EK500 echo sounder ... characteristic pattern of increasing dB with depth (because of the Time Varied Gain correction), and were ... Between Swarm Distance (BSD), the distance from the last ping encounter with the swarm and the first ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom

9. Indices of prey availability near the Seal Island CEMP site: 1990 to 1996

   of Elephant Island, and between 25 and l00 m depth. Indices of average prey density agree with ... 25 and l00 m depth. Indices of average prey density agree with demographic indices of krill ... link the performance of predators of krill (Euphatisia st~perba) with the availability of their prey ... values of average volume backscattering agree well with estimates of krill density over the entire ... survey area, with the exception of 1993. Hewitt and Demer (1994b) reported relatively high values of ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 37–45 : Auteur(s): Hewitt, R.P., G. Watters and D.A. Demer

10. CCAMLR ecosystem monitoring and a feedback management procedure for krill

    avoid many of the problems associated with the elaboration of ecosystem models 347 fundamental to ... ) (Peterman, 1990); (ii) its cost is commensurate with the value of the fishery (de la Mare, 1991); and ... Environmental Biologists. Wiley, New York. MURPHY, EJ., DJ. MORRIS, J.L. WATKINS and J. PRIDDLE. 1988. Scales ... Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR, 1991). The Commission has ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 345–350 : Auteur(s): Constable, A.J.

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