The seasonal variation of Toxicity in Nassarius hepaticus

Abstract:

The toxins of Nassarius hepaticus gastropods were studied. The toxicity of the gastropods was detected by the bioassay method. Results showed that the toxin in gastropods were varies with seasonal and from April to September was higher than other period, the highest toxicity was 56 MU/g. The further research revealed that the toxins was different in muscle or digestive gland: the toxin is high from May to September in muscle, the highest toxicity was 49 MU/g; and that was April to August, 79 MU/g in digestive gland. However, the total toxin in muscle was higher than that in digestive gland except April, The mostly toxins of gastropods was in the muscle. Nassarius hepaticus was belong to large size Nassariidae, The mostly toxins was in the edible part, we suggest that everyone should avoid to eat it.