DCHP-1 Online
red tide 
a micro-orgasm which when ingested by clams and mussels renders them poisonous to man.
- 1958 The name of this plankton is goniolax satapella, known to fishermen as "red tide" because at one stage of its life it turns red.
- 1965 The fisheries department has ordered special closure on clam harvesting in a number of areas still affected by the poisonous red tide that hit the coast last summer.
- 1965 Police said it was believed they were victims of red tide poisoning that sometimes occurs in shellfish off the coast.
- 1958 The name of this plankton is goniolax satapella, known to fishermen as "red tide" because at one stage of its life it turns red.