学术
杂色鲍苗大规模脱落死亡的初步研究
王瑞旋[1] 刘广锋[1] 徐力文[1] 王江勇[1] 黎伟坚[2] 陈毕生[1]
[1]中国水产科学研究院南海水产研究所,广东广州510300 [2]深圳市南澳海珍品养殖有限公司,广东深圳518116
摘 要:
研究了杂色鲍（HaliotisdiversicolorReeve）鲍苟脱落死亡周期中水质、硅藻和细菌变化情况。结果显示，鲍苗脱落前各水质指标无明显变化，脱落前硅藻数量大幅度增加，以卵形藻（Cocconeisspp．）和舟形藻（Naviculaspp．）为主要种类。同时发现一株可疑致病菌，初步鉴定为溶藻孤菌（Vibrio alginolyticus）。实验表明水质等相关因子与鲍苗脱落无直接关系，而硅藻很可能是致病菌的“载体”，整个附着膜微环境与鲍苗存亡息息相关。[著者文摘]
关 键 词:
文章出处:
《海洋科学》-2007年31卷4期 -53-57页
分 类 号:
文献标识码:
A
文章编号:
1000-3906（2007）04-0053-05
Studies on the stripping off and death of larvaes of Haliotis diversicolor Reeve
WANG Rui-xuan, LIU Guang-feng, XU Li-wen,WANG jiang-yong, LI Wei-jian, CHEN Bi-sheng（1. South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; 2. Nan＇ao Sea Foot Aquicuhure Company, Shenzhen 518116, China）
Abstract:
The water quality, growth of diatom and changes of bacterium during larvaes of Haliotis diversicolor stripping off and death were studied to find the cause. Results showed that the water quality hadn＇t changed distinctly before the larvaes stripped off. By the time of larvaes of abalones stripping off, the amount of diatom increased significantly, and dominant species were Navicula spp. and Cocconei spp. Meanwhile, we found a vibrion which might be the pathogenic bacteria which had caused stripping off and death of larvaes,and was identified as Vibrio alginolyticus. It was showed that water quality had no directive relationship with the abalones stripping off of H. diversicolor, but it could impact diatom phase. We found that diatom was likely to be the carrier of pathogenic bacteria, and the microenvironment of plates was very important.[著者文摘]
Key words:
Haliotis diversicolor Reeve; water quality; diatom; bacterium
基金资助:
广东省重大招标项目（2KB05301N）;中国水产科学院青年项目基金项目（2003-青-8）
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