title: Antibiotic resistance of bacteria isolated from shrimp hatcheries and cultural ponds on Donghai Island, China.
abstract: The resistance of bacteria to 12 different antibiotics was investigated in shrimp farms on Donghai Island, China. Antibiotic-resistant bacteria were found to be widespread in shrimp farms, indicating a high environmental risk. Further, significant differences were found in bacterial strains among farms (ANOVA, p<0.05), showing resistance to antibiotics such as ampicillin, trimethoprim, compound sinomi, tetracycline, chloramphenicol and cefazolin. No significant differences in antibiotic resistance were found among 6 hatcheries evaluated in this study (ANOVA, p>0.05), between exalted and traditional shrimp ponds (ANOVA, p>0.05), and between cultural ponds and corresponding control water source sites (T-test, p>0.05). In cultural ponds, no significant difference in bacterial resistance to antibiotics was found between water and sediment (T-test, p>0.05), and antibiotic resistance of bacteria from water showed a significant positive correlation with that from sediment (p<0.05). Therefore, our study indicates that bacterial multiple antibiotic resistance (MAR) is more widespread in shrimp hatcheries than ponds.
authors.affiliation: Monitoring Center for Marine Resources and Environments, Guangdong Ocean University, Zhanjiang 524088, PR China. zhangyb@gdou.edu.cn
authors.forename: Yu Bin
authors.initials: YB
authors.lastname: Zhang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Li
authors.forename: Xing Li
authors.initials: XL
authors.lastname: Sun
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D017756:Aquaculture; D001419:Bacteria / Q000187:drug effects*; D002681:China; D052978:Disk Diffusion Antimicrobial Tests; D024901:Drug Resistance, Multiple, Bacterial; D033561:Penaeidae / Q000382:microbiology*; D012623:Seawater / Q000382:microbiology*
chemical_list: D000900:Anti-Bacterial Agents