Controlled reproduction of pikeperch Sander lucioperca (L.). A review
2009
Zakes, Z.,Inland Fisheries Institute, Olsztyn (Poland). Dept. of Aquaculture | Demska-Zakes, K.,University of Warmia and Mazury, Olsztyn (Poland). Dept. of Ichthyology
Reproduction techniques for pikeperch, one of the most economically valuable species of freshwater European fish, are presented. The methods discussed include cage spawning, the artificial reproduction of wild fish (obtained from the natural environment), and out-of-season spawning. The principles of stimulating spawning with either photothermal or hormonal methods are also described. It is demonstrated that using in vivo methods for determining the maturation stage of oocytes and hormonal stimulation (especially in less mature females) permits increasing cage and artificial spawning of wild fish. Among the hormones and hormonal preparations tested to date in the artificial spawning of pikeperch (gonadotropins (GtH), gonadoliberins (GnRH), and synthetic analogues (GnRHa)), the most effective have been carp pituitary extract (CPE) and human chorionic gonadotropin (hCG)
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