Animal Sciences Commons^™

Reproduction And Early Development Of A Hermaphroditic Unionid : Uniomerus Tetralasmus (Say, 1831), Joan E. Burton

Theses, Dissertations and Capstones

A population of a midwestern naiad, Uniomerus tetralasmus was discovered in West Virginia in 1984. A survey of this disjunct population was undertaken between May and December 1986. A study of the reproductive and early developmental stages was the primary objective. A description of the morphology, a shell aberration, a study of its ability to estivate, a correlation between sex types in lentic and lotic environments and explanations for its expansion to West Virginia are included as well. When permanent slides were made of the naiad's reproductive organs, the naiad was found to be a functional hermaphrodite. Eggs and sperm …