2001年开始,多数九孔人工繁殖幼苗在附苗后14～21天陆续白化脱落死亡,活存率不到1%,对九孔产业影响甚钜,问题至今尚未解决。在种苗来源不足的情形下,已影响成贝产量及市场交易价格,甚至波及九孔产业发展。台湾水产试验所海水繁养殖研究中心杨鸿禧研究员指出,九孔种苗脱落或成孔 Since 2001, the majority of nine-hole artificial propagation seedlings died of albino blooms after 14 to 21 days of appendix and their viability was less than 1%. This caused a huge impact on the nine-hole industry and the problem has not yet been solved. In the case of insufficient seedling sources, the output of shellfish and market transaction prices have been affected, and even the development of the industry of nine holes has been affected. Yang Hongxi, a research fellow at Taiwan Aquatic Products Experimental Center for Aquaculture and Aquaculture, pointed out that nine holes seedlings fall off or become holes