ABSTRACT
The Sparidae family contains a number of economically important species throughout the world. Four seabreams (Acanthopagms latus, A. scheligeli, Pagrus major and Rhabdosargus sarba) are the most popular for aquaculture in Taiwan. They all are protandrous, being a functional male at an early age (usually one year old) but reversing sex to become a functional female in later years. Self-fertilization is possible for these four species. Such studies could facilitate genetic understanding and quickly lead to the development of inbred lines. The cryopreservation of sperm would also aid broodstock management, gene conservation and genetic selection of the beneficial traits for intensive commercial farming. Kurokura et al. [1] succeeded in using frozen crimson seabream (Evonnis japonica) semen to fertilize female red seabream and produced hybrids with increased growth rate and desired body color.
