“…Only preliminary results dealing with gonadal development in cultured sterlet have been published previously (Jackson et al., ). Moreover, study on annual gonadal cycle and changes in serum sex steroid profile of fish is crucial to examine germline development and spawning pattern in fish (Barcellos et al., ; Golpour, Pšenička, & Niksirat, ; Lee & Yang, ; Manosroi, Meng‐Umphan, & Manosroi, ; Tan‐Fermin, Ijiri, Ueda, Adachi, & Yamauchi, ). Gametogenesis and gonadal cycles were evaluated in cultured male and female of white sturgeon, Acipenser transmontanus (Doroshov, Moberg, & Van Eenennaam, ), female siberian sturgeon, Acipenser baerii (Williot, Brun, Rouault, & Rooryck, ), male and female of amur sturgeon, Acipenser schrenckii (Qu, Sun, Wan, & Ma, ), and both sexes of shortnose sturgeon, Acipenser brevirostrum (Colombo, Garvey, & Wills, ; Flynn & Benfey, ).…”