日治時期臺灣總督府的殖產政策，在「農業臺灣，工業日本」的主導下，水產業的發展不似農業有政府與財團的強勢介入，掌握其資金及市場。日治初期，臺灣的養殖漁業技術沿襲傳統的方法：南部利用潮間帶開闢成魚塭，養殖虱目魚與牡蠣；北部則利用埤塘、池塘放養淡水魚種，每當遇上天災時，則遭逢損失，因此淡水養殖向來被視為農家副業，所養殖的漁獲以自給為主，為提升單位面積的產量，臺灣總督府於各地陸續成立水產試驗機構，以期透過技術改良，突破養殖漁業的限制。 大正2年於桃園霄裡地區所成立的水產試驗作業所，負責水產試驗及種苗配發的任務，因當時淡水養殖的魚苗皆仰賴進口，引進日本內地已掌握既有的鯉魚育苗，進行鯉魚魚苗配發作業，並因應當時的瘧疾肆虐造成衛生問題，水產試驗作業所承接大肚魚苗配發任務，成功配發大肚魚苗共三十萬餘尾，防治有成。大正10年，水產試驗作業所改制為淡水養殖試驗場，進行多種養殖試驗項目，謀求改良養殖方法，雖大抵試驗項目未能落實應用到實際作業，卻也反映出相較於鹹水養殖，發展淡水養殖限制所在。 ;In the early days of the Japanese occupation, Taiwan′s fish farming technology followed traditional methods: in the south, the intertidal zone was used to open up fish ponds to breed milkfish and oysters; in the north, ponds and ponds were used to stock freshwater fish species. Whenever there was a natural disaster, Therefore, freshwater aquaculture has always been regarded as a sideline industry for farmers, and the fish caught in the culture are mainly self-sufficient. In order to increase the output per unit area, the Taiwan Governor-General has successively established aquatic testing institutions in various places, hoping to achieve breakthroughs in aquaculture through technological improvements. Fishing restrictions. The aquatic products experimental operation station was established in the Taoyuan Xiaoli area in the second year of Taisho. It was responsible for aquatic product testing and seed distribution. Since all freshwater fish fry at that time relied on imports, the existing carp nurseries that had been mastered in mainland Japan were introduced to carry out carp breeding. Fish fry distribution operation, and in order to prevent and control malaria, the Fisheries Experimental Operations Station undertook the distribution of big belly fish fry, and the prevention and control was successful
