Topić Popovic N, Teskeredzić E, Strunjak-Perović I, Coz-Rakovac R
Ruder Boskovic Institute, Centre for Marine and Environmental Research, Laboratory for Aquaculture, Zagreb, Croatia.
Vet Res Commun. 2000 Sep;24(6):371-7. doi: 10.1023/a:1006418116155.
Aeromonas hydrophila was recovered from fish living in lake Vrana on the Croatian island of Cres. The occurrence of the bacterium in the fish was assessed and related to gross signs of disease and findings at necropsy as a potential health hazard for fish. Isolated bacteria were subjected to morphological, physiological, biochemical and antibiotic susceptibility tests. A total of 26 A. hydrophila isolates were obtained. There was a clear seasonality, as no isolates were recovered in the summer months. Most of the isolates were sensitive to all the antimicrobials used in the study except novobiocin and penicillin G. Affected fish manifested haemorrhages over the skin, in the liver, kidney and swim bladder, spleen infarcts, fatty liver, ascitic fluid and swollen haemopoietic tissues. A. hydrophila does not appear to pose a major threat for the fish in the lake at present but under unfavourable and stressful conditions it could seriously compromise fish health.
嗜水气单胞菌从克罗地亚 Cres 岛 Vrana 湖中的鱼类体内分离得到。对该细菌在鱼体内的出现情况进行了评估，并将其与疾病的明显体征以及尸检结果相关联，以确定其作为鱼类潜在健康危害的情况。对分离出的细菌进行了形态学、生理学、生化和抗生素敏感性测试。共获得 26 株嗜水气单胞菌分离株。存在明显的季节性，夏季月份未分离到菌株。除新生霉素和青霉素 G 外，大多数分离株对研究中使用的所有抗菌药物敏感。患病鱼表现出皮肤、肝脏、肾脏和鳔出血、脾脏梗死、脂肪肝、腹水和造血组织肿胀。目前嗜水气单胞菌似乎对湖中鱼类不构成重大威胁，但在不利和应激条件下，它可能严重损害鱼类健康。
