Interannual variation in condition of the mackerel icefish |
| |
| Authors: | I Everson K-H Kock G Parkes |
| |
| Institution: | British Antarctic Survey, Natural Environment Research Council, Madingley Road, Cambridge CB3 0ET, U.K.;Bundesforschungsanstalt für Fischerei, Institut für Seefischerei, Hamburg, Germany;Renewable Resources Assessment Group, Imperial College for Science, Technology and Medicine, 8 Prince's Gardens, London SW7 IN A, U.K. |
| |
| Abstract: | Mackerel icefish Champsocephalus gunnari are widespread on the South Georgia (54° S, 36° W) shelf. Analysis of condition indicated a strong interannual variation. High condition indices, indicative of good feeding conditions, were present when krill were abundant in the region. Years when krill were scarce and condition index was consequently low, were consistent with years when indices from land-based krill predators also indicated that krill were scarce. |
| |
| Keywords: | icefish condition index krill |
|
|
