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The reproductive biology of Tricnidactis errans (Actiniaria, Haliplanellidae) from rocky shore of Mar del Plata (Argentina)
Excoffon, A.C.; Zamponi, M.O. (1995). The reproductive biology of Tricnidactis errans (Actiniaria, Haliplanellidae) from rocky shore of Mar del Plata (Argentina). Cah. Biol. Mar. 36(3): 175-179
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, meer
Peer reviewed article  
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  • Excoffon, A.C.
  • Zamponi, M.O.
Abstract
    Tricnidactis errans from Mar del Plata propagates asexually by pedal laceration. Dynamics of asexual propagation was evaluated. Frequency of laceration and number of lacerates per individual showed a correlation with seasonal changes in mean seawater temperature; the highest rate of fragmentation was observed after the maximum water temperature (February-March). T. errans exhibited a clear annual cycle of gametogenesis, but sterile and almost exclusively female specimens were found. Both of them propagate asexually by pedal laceration, producing a similar number of fragments. Asexual reproduction by pedal laceration appears to be the sole mean of propagation in the examined aggregation.
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