Analysis of diarrhetic shellfish poisoning of bivalves in sea of Shenzhen

Objective:To investigate the pollution of diarrhetic shellfish poisoning(DSP) of bivalves in sea of Shenzhen.Methods:Bivalves was collected from Daya bay and Dapeng bay of Shenzhen from August 2007 to July 2008.Enzyme-linked immunosorbent assay(ELISA) and mouse bioassay were conducted to investigate the level of DSP.Results:The sensitivity of ELISA was higher than MBA,but both had a better consistency.DSP was detected in 168 samples,and 25 samples were found DSP exceeded the threshold.The level of DSP in bivalves was higher in Summer and Autumn,and glands was higher than muscles,but there was no difference between the two places.Conclusion:There is a certain degree of DSP in bivalves of Daya bay and Dapeng bay of Shenzhen.It is necessary to detect DSP of fishery product in the future and to ensure the safety.