Morphometric differentiation between artificially-released red sea bream [Pagrus major] and 0-age wild fish by discriminant function

A method for differentiation of hatchery-reared and artificially-released red sea bream (Pagrus major ) from wild fish, based upon their morphometric differences were developed. Taking into consideration body height, height at eye, eye diameter and upper jaw length, discriminant functions were calculated to differentiate artificial fish from wild fish. Considering morphological changes with growth, samples were classified at intervals of 10 mm in fork length. Discriminant functions, Z, were examined class by class.