Reproductive phenology in Megalonaias nervosa (Bivalvia: Unionidae) in Wheeler Reservoir, Tennessee River, Alabama, USA

  title={Reproductive phenology in Megalonaias nervosa (Bivalvia: Unionidae) in Wheeler Reservoir, Tennessee River, Alabama, USA},
  author={Thomas M. Haggerty and Jeffrey T. Garner and Rebekah L. Rogers},
Two hundred and sixty-nine specimens of Megalonaias nervosa (Rafinesque, 1820) were collected approximately monthly from the Wheeler Reservoir (Tennessee River mile 298), Alabama, USA, between July 1995 and June 1997. Microscopic and gross examinations of gonadal tissue and marsupia were used to determine the phenology of gamete production, spawning, brooding, and glochidia discharge. In addition, 11 females were collected in October 2001 to obtain estimates of brood size. Little reproductive… 

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