Roberts, Debbie Sophia2008-12-162008-12-162008-12-16https://hdl.handle.net/2139/2938enPlease contact the West Indiana Division at the University of the West Indies,St.Augustine in order to view the full thesis. Contact: wimail@sta.uwi.eduFreshwater animals -- Tropics -- Effect of water pollution onStream animals -- EcologyAcute toxic effects of zinc, copper and ammonia to tropical freshwater animalsThesis