The posterior distribution of the Bayesian-based Standard Ellipse Areas (SEAB) with 50%, 75%, and 95% credibility intervals for the three fishes (Carassius auratus, Parabramis pekinensis, and Toxabramis swinhonis) across different water periods. Crosses in red represent the area of the standard ellipse (SEAc). High. P. pekinensis: SEAB of P. pekinensis during high-water periods, high. C. auratus: SEAB of C. auratus during high-water periods, high. T. swinhonis: SEAB of T. swinhonis during high-water periods, low. P. pekinensis: SEAB of P. pekinensis during low-water periods, low. C. auratus: SEAB of C. auratus during low-water periods, low. T. swinhonis: SEAB of T. swinhonis during low-water periods, mid. P. pekinensis: SEAB of P. pekinensis during mid-water periods, mid. C. auratus: SEAB of C. auratus during mid-water periods, mid. T. swinhonis: SEAB of T. swinhonis during mid-water periods. Red x: the estimated SEAc, black dots: SEAB mode.