Styela clava Herdman, 1881 (ITIS)
Clubbed tunicate, stalked sea squirt, solitary sea squirt, leathery sea squirt, Pacific rough sea squirt, Asian sea squirt
Eastern Asia (Clarke and Therriault 2007)
First observed on the Pacific coast in the 1930s (Clarke and Therriault 2007)
Probably introduced accidentally on the hulls of ships or with imported oysters (Clarke and Therriault 2007)
Competes with and displaces native species (Clarke and Therriault 2007)
Coastal regions of New England and the Western U.S.
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The section below contains highly relevant resources for this species, organized by source.
Council or Task Force
Integrated Taxonomic Information System. Styela clava. [Accessed Aug 26, 2023].
Clarke, C.L. and T.W. Therriault. 2007. Biological Synopsis of the Invasive Tunicate Styela clava (Herdman 1881) [PDF, 1.38 MB]. Pacific Biological Station, Fisheries and Oceans Canada. Canadian Manuscript Report of Fisheries and Aquatic Sciences 2807.