Reproductive Traits of Invasive Amazon Sailfin Catfish (Pterygoplichthys pardalis) in Association with the Nutrient Concentration of the Invaded Habitat
Reproductive Traits of Invasive Amazon Sailfin Catfish (Pterygoplichthys pardalis) in Association with the Nutrient Concentration of the Invaded Habitat
Ajmal Hussan1, AT Ramachandra Naik2, Subhendu Adhikari3, Arabinda Das3, Farhana Hoque3, Pramod Kumar Sahoo4 and Jitendra Kumar Sundaray4*
Location map of East Kolkata Wetlands (EKW) and sampling sites.
Ovarian maturity stages of female Pterygoplichthys pardalis (n = 327) found in different study sites of East Kolkata Wetlands, India. Stage 1 (ovary with immature follicles), stage 2 (ovary with maturing follicles), stage 3 (ovary with mature follicles/ ripe), and stage 4 (ovary with spent follicles).
Gonadosomatic index (GSI) of male (left) and female (right) Pterygoplichthys pardalis in relation to the total length and whole body weight of mature males and females, respectively. r and p represents the correlation coefficients and significance of correlation, respectively, for Pearson correlation analyses describing the relationships GSI with length and weight of respective gender. N, number of mature specimen.
Mean concentrations of total nitrogen and total phosphorus in five studied sites of East Kolkata Wetlands, India. Error bars represent standard error.
