Inter-annual variation in the gonad cycle of the mackerel icefish
Everson, I.; Kock, K.-H.; Ellison, J.. 2000 Inter-annual variation in the gonad cycle of the mackerel icefish. Journal of Fish Biology, 57 (SA). 103-111. 10.1006/jfbi.2000.1601Full text not available from this repository.
Spawning by Antarctic fish is generally considered to be seasonal and restricted to a brief period during the autumn and winter. Arising from this it has been assumed that the gonadal maturation cycle is also closely associated with the time of year. The gonad maturation cycle of the mackerel icefish Champsocephalus gunnari was investigated using data collected during research surveys and from sampling the commercial fishery. Spawning appears to occur at the same time each year, but the timing of gonadal development is subject to a considerable inter-annual variation. The implications of this variation are discussed with respect to feeding conditions.
|Programmes:||BAS Programmes > Pre 2000 programme|
|Additional Keywords:||mackerel icefish, Champsocephalus gunnari, spawning, reproduction, gonad maturation|
|Date made live:||23 Nov 2012 12:04|
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