Preliminary investigation showed improperly induced salination could have harmed the health of the fish and made them more susceptible to infection.

• 初步怀疑它不适应咸淡水转换的海化过程，出现免疫力下降、伤口难以愈合、停止进食以及活动能力下降等症状，死因与去年12月死亡的“中华鲟七号”类似。