McDowall, Robert M. . Diadromy in fishes: migrations between fresh water and marine environments / Robert M.McDowall. - London : Croom Helm , 1988. - ix,308p. : ills.,fig ; 24cm . NULL ISBN: 0709955030 USD 33.00 Subjects--Index Terms: FISHES-MIGRATION Dewey Class. No.: 597.0525 / MCD/D