Fishery Technology Journal

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Breeding behaviour in Macrobrachium rosenbergii (De Man)
(Society of Fisheries Technologists (India) Cochin, 1965) Mallikarjuna Rao, R.
During the course of experimentations on the inducement of breeding in Macrobrachium rosenbergii (De Man) under laboratory conditions, detailed observations on the mating behaviour of the species have been made, which have been elaborated in this account. Various behaviour patterns have been analysed critically and the probable directive and releasive factors for these behaviour patterns discussed. Differences in behaviour of the male resulting from the introduction of another mature male in the arena have been described. An aberrant displacement activity which has been observed in one of the males has also been discussed.