まひ性貝毒による既知有毒種以外のカニの毒化

抄録

Twelve species of crabs collected at Okinawan coral reef were tested for the presence of paralytic shellfish toxins. In addition to the previously known three xanthids, the following seven species were newly found to the toxic: Neoxanthias impressus, Actaeodes tomentosus, Eriphia scabricula, Pilumnus vespertilio, Schizophrys aspera, Thalamita sp. and Percnon planissimum. Toxic genera covered four families: Xanthidae, Majidae, Portunidae and Grapsidae. Toxin compositions of E. scabricula, P. vespertilio and Thalamita sp. were characterized by the predominance of saxitoxin and neosaxitoxin over gonyautoxins, similarly to that of Zosimus aeneus.