Shell length study for a prediction of morphometric traits in freshwater snail Lymnaea acuminata

Abstract

The present work emphasizes on the morphometric study of freshwater snail Lymnaea acuminata inhabitant of artificial ponds of the University campus, Aurangabad. Data was collected to evaluate correlation growth of phenotypic shell dimensions as a trait using multiple regression equation. The snail Lymnaea acuminata shell width (ASW), aperture length (ApL), aperture width (ApW) and total body weight (TLW), were the parameters predict the animal shell length (Y=0.624+0.278X1+0.337X2- 0.401X3+0.992X4, r2=65.2%). The mean recorded for animal shell length, animal shell width, aperture length, aperture width and total live weight was 1.696±0.282cm, 2.466±0.353cm, 0.903±0.144cm, 0.499±0.080cm, 0.286 ± 0.124 gm respectively. The result showed correlation among morphometric traits of a single breed which indicated positive. It also showed strong and very high significant. Animal shell length and all body parameters are correlated and co-efficient.