Occurrence of a large amount of gonyautoxins in a xanthid crab Atergatis floridus from Chiba [Japan]

agentes nocivos alimentos asia asie cangrejo de mar ceiuapa (grupos de especies) coasts costa crabe crabs diseases facteur nuisible foods fruits de mer injurious factors invertebrados invertebrates isscaap groups of species japan japon maladie organique mastigophora nervous system diseases organic diseases physiographic features produit alimentaire protozoa protozoaire seafoods shellfish substance toxique toxic substances toxinas toxine toxins trastornos del sistema nervioso