The use of predator-derived krill length-frequency distributions to calculate krill target strength

CCAMLR Science

Volumn 8, Issue , 2001, Pages 155-163

  Reid, K ^b   Brierley, A S ^a,b  

^a UNIVERSITY OF ST ANDREWS   (United Kingdom)

^b BRITISH ANTARCTIC SURVEY   (United Kingdom)

Author keywords

CCAMLR; Diet; Ecosystem; Krill; Length frequency; Predators; Resource management; Target strength

Indexed keywords

EID: 0041078857     PISSN: 10234063     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. Boyd, I.L., D.J. McCafferty, K. Reid, R. Taylor and T.R. Walker. 1998. Dispersal of male and female Antarctic fur seals Arctocephalus gazella. Can. J. Fish. Aquat. Sci.
2. Boyd, I.L., E.J. Hawker, M.A. Brandon and L.J. Staniland. In press. Measurement of ocean temperature using instruments carried by Antarctic fur seals. Journal of Marine Systems.
3. Brierley, A. S. and J.L. Watkins. 1996. Acoustic targets at South Georgia and the South Orkney Islands during a season of krill scarcity. Mar. Ecol. Prog. Ser., 138 (1-3): 51-61.
4. Brierley, A.S., J.L. Watkins and A.W.A. Murray. 1997. Interannual variability in krill abundance at South Georgia. Mar. Ecol. Prog. Ser., 150 (1-3): 87-98.
5. Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson. 1999. Acoustic estimates of krill density at South Georgia, 1981 to 1998. CCAMLR Science, 6: 47-57.
6. Demer, D.A. 1994. Accuracy and precision of echo integration surveys of Antarctic krill. Ph.D. thesis, University of California, San Diego: 144 pp.
7. Foote, K.G., I. Everson, J.L. Watkins and D.G. Bone. 1990. Target strengths of Antarctic krill (Euphausia superba) at 38 and 120 kHz. J. Acoust. Soc. Am., 87(1): 16-24.
8. Greene, C.H., P.H. Wiebe, S. McClatchie and T.K. Stanton. 1991. Acoustic estimates of Antarctic krill. Nature, 349: 110 pp.
9. Hill, H.J. 1990. A new method for the measurement of Antarctic krill, Euphausia superba Dana, from predator food samples. Polar Biol., 10 (4): 317-320.
10. Lockyer, C. 1973. Wet weight, volume and length correlation in the Antarctic krill Euphausia superba. Discovery Reports, 36: 152-155.
11. Morris, D.J., J.L. Watkins, C. Ricketts, F. Bucholz and J. Priddle. 1988. An assessment of the merits of length and weight measurements of Antarctic krill Euphausia superba. Brit. Ant. Surv. Bull., 79: 37-50.
12. Murphy, E.J. and K. Reid. In press. Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem. Mar. Ecol. Prog. Ser.
13. Reid, K. 2000. A description of the ecosystem status at South Georgia during winter 1999-summer 2000. Document WG-EMM-00/19. CCAMLR, Hobart, Australia.
14. Reid, K. and J.P.Y. Arnould. 1996. The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at South Georgia. Polar Biol., 16 (2): 105-114.
15. Reid, K. and J. Measures. 1998. Determining the sex of Antarctic krill Euphausia superba using carapace measurements. Polar Biol., 19: 145-147.
16. Reid, K., P.M. Trathan, J.P. Croxall and H.J. Hill. 1996. Krill caught by predators and nets: differences between species and techniques. Mar. Ecol. Prog. Ser., 140 (1-3): 13-20.
17. Reid, K., K. Barlow, J. Croxall and R. Taylor. 1999a. Predicting changes in the Antarctic krill Euphausia superba population at South Georgia. Mar. Biol., 135: 647-652.
18. Reid, K., J. Watkins, J. Croxall and E. Murphy. 1999b. Krill population dynamics at South Georgia 1991-1997, based on data from predators and nets. Mar. Ecol. Prog. Ser., 117: 103-114.