• Sex pheromone in a stomatopod crustaceanSquilla holoschista

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    • Keywords


      Pheromone; natural sex attractants; Squilla; premaling gestures

    • Abstract


      The stomatopods are well-known for their aggressive and agonistic encounters. The males are normally aggressive; the females too in the non-reproductive condition show such a behaviour with males. InS. holoschista mating is frequent as well as repetitive. The present paper explains whether there is any involvement of sex pheromone. The sex pheromones are considered to be present in ovaries, cement glands as well as oviducal extractions. These substances were tested for their pheromonal activity. The results indicate that there may not be such attraction as evidenced by the lack of mating gestures from the isolated males in the presence of these substances. It is therefore suggested that the mating in the stomatopod,S. holoschista is indiscriminate. The physiological effect of such a repeated and indiscriminate mating on the female is discussed.

    • Author Affiliations


      M Deecaraman1 T Subramoniam2

      1. Department of Zoology, Sri Theagaraya College, Madras - 600 021, India
      2. Department of Zoology, University of Madras, Madras - 600 005, India
    • Dates


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