Water Pretreatment Affects the Bacteria Communities in Penaeus monodon Larvae Culture
Chao Zhao1,2, Juan Feng1, Haidong Xu1, Lihua Qiu1,2,*, Qibin Yang1, Zhenhua Ma1 and Jian G. Qin3
1South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, P.R. China
2Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture, Guangzhou, 510300, P.R. China
3College of Sciences and Engineering, Flinders University, PO Box 2100, Adelaide, SA 5001, Australia
ABSTRACT
This study examined the effects of UV and formalin treatment on the survival of Penaeus monodon larvae and bacteria communities in the rearing tanks. The survival of P. monodon in the 36 h experimental period was not significantly affected by the water pretreatment (P > 0.05). However, the bacteria communities were significantly affected by water pretreatment (P < 0.05). Heterotrophic bacteria and vibro counts in the formalin treatment were significantly lower than UV treatment and untreated group (P < 0.05). Based on the results obtained in the present study, we suggest that formalin treatment could be a better away to control bacteria in P. monodon larvae culture.