Résultats de la recherche

1. 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 ... –5.0 mgC 1 –1. Intermoult period (IP) decreased, but an increment of body length per moult (∆BL) of ... available food concentration. Note: The full text of this paper will be published under the above title in ... slow to support the hypothesised 2-year life-span of this animal in the field. Growth conditions of ... period (IP) decreased, but an increment of body length per moult (6BL) of juvenile krill increased, up ... . Note : The full text of this paper will be published under the above title in Polar Biology (1987 ... 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

2. Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove

   the non-commercially fished Notothenia coriiceps is still evident. At Potter Cove, despite an overall ... Cove, the relative abundance of N. rossii showed an increase in 2002 and 2003, whereas G. gibberifrons ... sampling period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The ... ) Notothenia rossii, total catches Years 19.8835 20 0.994173 14.6162 <0.00001 Error 59.3803 873 0.068019 ... (b) Gobionotothen gibberifrons, total catches Years 9.8124 20 0.49062 42.9468 <0.00001 Error 9.9731 ... 873 0.01142 (c) Notothenia coriiceps, total catches Years 32.4684 20 1.623422 11.8377 <0.00001 ... Error 119.7232 873 0.137140 (d) Notothenia rossii, relative catches Years 53439.18 20 2671.959 ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Auteur(s): Barrera-Oro, E.R. and E.R. Marschoff

3. Phytoplankton distribution in the mixed layer: implication to krill abundance

   Antarctic Ocean, we estimate the depth of the mixed layer and its turbulence intensity from an Ekman layer ... ...... 0 10 20 30 /"... 40 E "'--" ..c 50 -j-J 0.. ID -0 60 70 80 90 100 ... 10 20 30 40 /"... E "'--" 50 ..c -j-J 0.. ID 60 -0 70 80 90 100 w VI ... follow ( 2 ) (Gregg, 1987). Figure 2 shows the dissipation profile for UlO = 1, 5, 10 and 20 m sec-1 ... A is a constant of an order one. For the sake of simplicity we have used A= 1 . Therefore by ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Auteur(s): Yamazaki, H. and T.R. Osborn

4. Target strengths of Antarctic krill (Euphausia superba)

   of an underwater television camera and programmable videotape units for the display, recording and ... aslant as viewed from the transducer. For the particular "20 log r" TVG used throughout the measurements ... mentioned analysis of extinction has been interesting for yielding quite large values for the extinction ... kHz TS (dB} at 120 kHz Event Mean no. - no. 1 7 1 9 20 26 28 30 36 37 43 47 50 52 54 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Auteur(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote

5. Possible effects of different levels of krill fishing on predators – some initial modelling attempts

   modelling attempts Abstract / Description:  An initial attempt is made to develop the modelling framework ... suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... fluctuations together with preliminary information on adult survival and breeding success patterns for certain ... facilitated discussion on the interpretation of the preliminary estimates of adult survival rate provided for ... one year), while for birds it is the age at first laying. The values of T were taken from the ... reduced in a particular year if an upper bound of 1.5 yr-' on the effective annual fishing mortality for ... --...- v l med~an 90%-~le 1, , C 0 1 I I I 0 50 100 150 200 (ii)b Time (years) 5 Z 8 Y 5 d E a ... * Crabeater seal Black-browed albatross** Table 2: Values used for age-at-first-reproduction and maximum ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Auteur(s): Butterworth, D.S. and R.B. Thomson

6. Preliminary atlas of Balaenopterid whale distribution in the Southern Ocean based on pelagic catch data

   consists of 30 maps of catches of fin whales for each season from 1952/53–1961/62 for January, February and ... March, plus three summary maps of fin whales catches for the years 1952/53–1961/62 combined, for each of ... the locations of pelagic catches of Balaenopterid whales by month between 1931/32–1979/80. Two sets of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 113-193 : Auteur(s): Mizroch, S.A. et. al

7. Selectivity of commercial and research trawls in relation to krill

   RT 72/308 and an Isaacs-Kidd midwater research trawl (IKMT). The commercial trawl catches contained ... more large krill (35-58 mm) than catches of the research trawl (30-54 mm). The maximum difference in ... better at retaining small krill, while the opposite is true for the commercial trawl. Consequently ... CCAMLR's Working Group on Krill (WG-Krill) (35-58 mm) than the IKMT trawl (30-54 mm) (see for an operating ... ~rika), and an RT 72/308 commercial trawl (RV Augus). Trawling duration was 30 minutes and trawhg ... trawl will affect the accuracy of biomass estimates for specific age groups of krill because the ... expressed towards Yu. V. Kadilnikov for his assistance in preparing this article. REFERENCES Greene ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 161–169 : Auteur(s): Kasatkina, S.M

8. Analysis of haul data from the South Georgia krill fishery

   establish the time required for each phase of the fishing operation. The times associated with shooting and ... hauls were generally small, suggesting that little effort was spent searching for fishable swarms beyond ... Georgia suggests that fisheries-based indices may be of value for management purposes, consequently ... existed between years, with 1995 being a better season than either 1994 or 1996. Aspects of mesoscale ... operating in different years. Most vessels from Poland and Ukraine operated for just a single year, while ... recorded data from individual hauls. For ease of reference, each vessel was assigned an individual ... fishing season, an analysis of variance was used. For 1994 the analysis indicated that the distance ... average size of catches in each year, with Poland consistently taking smaller hauls (Table 4). An ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Auteur(s): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes

9. A study of Patagonian toothfish (Dissostichus eleginoides) post-tagging survivorship in Subarea 48.3

   , 396 animals were included, with an overall survivorship of 90%. Smaller animals and animals in better ... -tagging survivorship of 95% or more. An assumption of 90% post-tagging survivorship is a conservative ... . Toothfish were kept in tanks with seawater replacement for at least 12 hours after tagging. On one vessel ... an overall survivorship of 90%. Smaller animals and animals in better initial condition had a higher ... more. An assumption of 90% post-tagging survivorship is a conservative value which might be ... The 396 fish on eight vessels used in the experi- ment exhibited an overall survivorship of 90 ... on survivorship was most significant for fish greater than 90 cm, with a suggestion that ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 279–289 : Auteur(s): Agnew, D.J., J. Moir Clark, P.A. McCarthy, M. Unwin, M. Ward, L. Jones, G. Breedt, S. Du Plessis, J. Van Heerdon and G. Moreno

10. Telemetry monitoring of ecological resources

    . Range for an implanted transmitter is typically 30 percent of the range which would be received from ... the application where a radio marker beacon is attached to an animal and the animal then relopated ... these transmitters is quite variable. Small sizes range from 0.5 Km to 2 Km transmission range. For an ... closure. If the animal is not active the clock will not be reset and the clock sends an output after a ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Auteur(s): Kuechle, V.B.

Pages