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由于大黄鱼人工养殖规模不断扩大，海水网箱设置过于密集，养殖区域水质恶化严重，以及大黄鱼经多代人工繁殖造成性状退化，导致机体抵抗力下降等原因，故随着高温期的到来，大黄鱼细菌性疾病不断发生，出现以体表出血、鳃丝变白、体表长白点（或白斑）、眼睛红肿为主要特征的?
Due to the continuous enlargement of artificial breeding of large yellow croaker, the setting of seawater cages is too intensive, the water quality of breeding areas is seriously deteriorated, and the large yellow croaker degenerates by artificial breeding for many generations, leading to the decline of body resistance. Therefore, with the advent of high-temperature period, Large yellow croaker bacteria continue to occur, there was bleeding on the body surface, gill filaments whitish, long white spots on the surface (or white spots), eye swelling as the main feature?