Microbial contamination in the coastal aquaculture zone of the Ba Lat river mouth, Vietnam
2023
Le, Nhu Da | Hoang, Thi Thu Ha | Nguyen, Thi Mai Huong | Rochelle-Newall, Emma | Pham, Thi Minh Hanh | Phung, Thi Xuan Binh | Duong, Thi Thuy | Nguyen, Thi Anh Huong | Dinh, Le Minh | Duong, Thanh Nghi | Nguyen, Tien Dat | Le, Thi Phuong Quynh | University of Science and Technology of Hanoi (USTH) | Vietnam Academy of Science and Technology (VAST) | Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris) ; Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
International audience
显示更多 [+] 显示较少 [-]英语. Contamination of aquaculture products by pathogenic organisms is a major concern in areas where this activity is of high economic importance. The abundances of total coliforms (TC), Escherichia coli (EC) and faecal strepto-cocci (FS) (in CFU.100 mL-1) in seawater in the Red River coastal aquaculture zone were determined. The results showed TC numbers (200 to 9100; average 1822), EC (<100 to 3400; average 469) and FS (<100 to 2100; average 384), of which TC exceeded the allowable threshold of the Vietnam regulation for coastal aquaculture water. TC and EC numbers in 4 wastewater types (domestic, livestock farming sewage, agricultural runoff, and mixed sewage canals) were investigated and revealed the importance of point sources of faecal contamination in seawater. These results underline the need to reduce the release of untreated wastewater and to put into place seawater microbial quality monitoring in areas where the development of sustainable aquaculture is an objective.
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