Biomonitoring by using Rapid-Read Pathogenic Bacteria Indicator in Sediments and Bivalve Mollusks: Southern Gulf of Thailand, a Mangrove Area Case Study

Pathogenic bacteria groups can be applied to rapid bioindicator for environmental assessment. The objective of study was monitor 5 indicator and pathogenic (Escherichia coli/ total coliform, Salmonella spp., Vibrio Bacillus spp. Clostridium spp.) in surface water sediments collected before monsoon after season from 6 areas located a Thepha District, Songkhla province mangrove closed Southern gulf Thailand. Each area were selected criteria totally different environment parameter tide. relative levels coliforms, E. coli, typically increased rainy (July) compared with winter summer at most sites. In parallel, the highest number found (April). coli Coliform detected during estuary low oxygen dissolved, average numbers 6.6×103 3.8×105 CFU/g, respectively. shows negative correlate dissolved (r2 = 0.756, p < 0.05). addition, bivalve mollusks but not over standard. A very strong positive correlation between temperature presence has pH, contrast, strongly correlated salinity 0.632, species only 2 around shrimp farm December year-round. this area, there are no evidence that founded related changing season. This is first baseline data as an alternative guide concept determination bacterial indicators. key factors health assessment villager EIA near future. HIGHLIGHTS common problem biomonitoring process limit biological less establish parameters Key analyzed conducted order find rapid-read method future GRAPHICAL ABSTRACT