一.不同鹽度對大口湯鯉種魚成熟及孵化之影響This study is conducted to investigate the effect of salinity on the sexaul maturation ofrock flagtail ( Kwhlia rupestris) broodstock. The optimum salinity for incubating thefertilized eggs is also examed.二.翹嘴紅之種原保存及育苗研究Collects the young sprout of Culter alburnus to carry on the farming from the opencountry to teach the bait that seedling needs to anticipate with the understanding andtechnique, and understand the natural seedling in the situation that the different waterenvironment distributes, and teach the seedling process and then can understand the fishfry to absorb the habit,bait to anticipate and get to dwell for rest sex.The work that canenhance by the above-mentioned process to grow the seedling to grow in the days tocome, the putting of the concert moderation flows and stays a ground of protection, inresponse to the addible ethnicity quantity.三.雄性吳郭魚苗之量產研究The production period of genetic male tilapia needs 7~8 years; each year is withstepwise goal.This year, The progeny tests are to be implemented on the maturefeminized fish got from last year's experiments, in order to sort out the xy femaleparents.四.台灣紅色吳郭魚之育種研究The selfcross or hybridization for some strains of Taiwanese red tilapia is toimplemented, in order to improve its characteristics. On the other hand,biotechnological methods are to be used for the help of discrimination between strains.五.日本鰻之人工繁殖技術改進研究This study try to find the suitable methods for the Japanese eels(Anguilla japonica) toinduce maturation and spontaneous spawning and also try to elvate the survival rate ofthe eel larvae.