A simple method for monitoring the spawning activity of fish in net enclosures

  • May, Robert C.
  • Akiyama, G. S.
  • Santerre, M. T.
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Publication date
January 1976
Publisher
Aquaculture Department, Southeast Asian Fisheries Development Center
Language
Breton

Abstract

A simple method is described for monitoring the spawning activity of fish held in suspended net enclosures. The method, which involves an airlift pump, has been used successfully with the threadfin, Polydactylus sexfilis, and has revealed important aspects of the daily, monthly and yearly spawning rhythms of this species. It is suggested that this approach may be useful in studies of Chanos chanos

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