A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

CCAMLR Science

Volumn 6, Issue , 1999, Pages 71-84

  Watkins, J L ^a  

^a BRITISH ANTARCTIC SURVEY   (United Kingdom)

Author keywords

CCAMLR; Euphausia superba; Population structure; Recruitment; South Georgia

Indexed keywords

EID: 0001902834     PISSN: 10234063     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (22)

1. Brandon, M.A., E.J. Murphy, M.J. Whitehouse, P.N. Trathan, A.W.A. Murray, D.G. Bone and J. Priddle. 1999. The shelf break front to the east of the sub-Antarctic island of South Georgia. Continental Shelf Res., 19: 799-819.
2. 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: 87-98.
3. 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. CCAMLK Science, 6: 47-57.
4. Butterworth, D.S., A.E. Punt and M. Basson. 1991. A simple approach for calculating the potential yield of krill from biomass survey results. In: Selected Scientific Papers, 1991 (SC-CAMLR-SSP/8). CCAMLR, Hobart, Australia: 207-217.
5. de la Mare, W.K. 1994. Modelling krill recruitment. CCAMLR Science, 1: 49-54.
6. Everson, I. 1976. Antarctic krill: a reappraisal of its distribution. Polar Record, 18: 15-23.
7. Hofmann, E.E., J.M. Klinck, R.A. Locarnini, B. Fach and E.J. Murphy. 1998. Krill transport in the Scotia Sea and environs. Ant. Sci., 10: 406-415.
8. Kawaguchi, S., T. Ichii and M. Naganobu. 1998. Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997. Document WG-EMM-98/33. CCAMLR, Hobart, Australia: 28 pp.
9. Mackintosh, N.A. 1973. Distribution of post-larvae krill in the Antarctic. Discovery Rep., 36: 95-156.
10. Murphy, E.J. and K.R. Reid. Submitted. Large-scale ecosystem variability: the role of krill populations dynamics in Southern Ocean ecosystem fluctuations. J. Anim. Ecol.
11. Murphy, E.J., J.L. Watkins, K. Reid, P.N. Trathan, I. Everson, J.P. Croxall, J. Priddle, M.A. Brandon, A.S. Brierley and E. Hofmann. 1998. Interannual variability of the South Georgia marine ecosystem: biological and physical sources of variation in the abundance of krill. Fisheries Oceanography, 7: 381-390.
12. Reid, K.G., J.L. Watkins, J.P. Croxall and E.J. Murphy. 1999. Krill population dynamics at South Georgia 1991-97, based on data from predators and nets. Mar. Ecol. Prog. Ser., 177: 103-114.
13. Ricketts, C., J.L. Watkins, D.J. Morris, F. Buchholz and J. Priddle. 1992. An assessment of the biological and acoustic characteristics of swarms of Antarctic krill. Deep-Sea Res., 39: 359-371.
14. Rosenberg, A.A., J.R. Beddington and M. Basson. 1986. Growth and longevity of krill during the first decade of pelagic whaling. Nature, 324: 152-154.
15. Siegel, V. 1987. Age and growth of Antarctic Euphausiacea (Crustacea) under natural conditions. Mar. Biol., 96: 483-495.
16. Siegel, V. and V. Loeb. 1995. Recruitment of Antarctic krill (Euphausia superba) and possible causes for its variability. Mar. Ecol. Prog. Ser., 123 (1-3): 45-56.
17. Siegel, V., W. de la Mare and V. Loeb. 1997. Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula). CCAMLR Science, 4: 19-35.
18. Siegel, V., V. Loeb and J. Gröger. 1998. Krill (Euphausia superba) density, proportional and absolute recruitment and biomass in the Elephant Island region (Antarctic Peninsula) during the period 1977 to 1997. Polar Biol., 19 (6): 393-398.
19. Watkins, J.L., D.J. Morris, C. Ricketts and J. Priddle. 1986. Differences between swarms of Antarctic krill and some implications for sampling krill populations. Mar. Biol., 93: 137-146.
20. Watkins, J.L., D.J. Morris, C. Ricketts and A.W.A. Murray. 1990. Sampling biological characteristics of krill: effect of heterogeneous nature of swarms. Mar. Biol., 107: 409-415.
21. Watkins, J.L., A.W.A. Murray and H.I. Daly. 1997. Variation in the distribution of Antarctic krill Euphausia superba around South Georgia. Document WG-EMM-97/47. CCAMLR, Hobart, Australia: 34 pp.
22. Watkins, J.L., A.W.A. Murray and H.I. Daly. In press. Variation in the distribution of Antarctic krill Euphausia superba around South Georgia. Mar. Ecol. Prog. Ser.