MORPHOLOGICAL CHARACTERISTICS OF THE FISH Siganus guttatus (Bloch, 1787) IN THUA THIEN HUE PROVINCE BY GEOMETRIC GEOMORPHIC APPROACH

Abstract

Siganus guttatus (Bloch, 1787) is a species of ray - finned fish belonging to the family Siganidae with high economic and nutritional value for aquaculture and production, so it is very promising for fish farming in Vietnam in general and Thua Thien Hue province in particular. Because the Tam Giang lagoon area has diverse bottom topography and cliff shapes, the flow in this area is very complicated. Therefore, in this study, morphological characteristics were collected and compared using geometrical unit approach of fish groups collected at two locations, Sam Chuon and Huong Phong, belong to Tam Giang lagoon, Thua Thien Hue province  area to assess the influence of flow on morphological diversity among individual groups. Based on the analysis of the geometrical units of 27 landmarks from 55 samples of fish collected in the study area, the results indicated that there was no statistically significant difference between the two groups of male and female individuals (p > 0.05); However, in terms of location, the analysis results show that there is a statistically significant difference between groups of individuals collected at different locations (p < 0.05).