Council or Task Force
Stop the Invasion: Invasive Tunicate (Jun 2016; PDF | 484 KB)
Washington State Recreation and Conservation Office. Washington Invasive Species Council.
See also: Outreach and Educational Materials - Invasive Species Fact Sheets for more resources
Invasive Species Compendium - Styela clava
Delivering Alien Invasive Species Inventories for Europe: Species Factsheet - Styela clava
European Commission. Sixth Framework Programme.
Non-native Species Information: Leathery Sea Squirt
Great Britain Non-Native Species Secretariat.
Rhode Island Marine & Estuarine Invasive Species Site - Club Tunicate
Narragansett Bay Research Reserve. Coastal Training Program.
NEANS Panel Online Guide - Club Tunicate
Northeast Aquatic Nuisance Species Panel.
The Exotics Guide: Non-native Marine Species of the North American Pacific Coast (Revised Sep 2011) - Styla clava
San Francisco Estuary Institute; Center for Research on Aquatic Bioinvasions.
NOBANIS: Invasive Alien Species Fact Sheet - Styela clava (2010; PDF | 66 KB)
European Network on Invasive Alien Species.
See also: NOBANIS Fact Sheets for invasive alien species of the European region, covering both animals and plants, as well as microorganisms
Global Invasive Species Database - Styela
IUCN. Species Survival Commission. Invasive Species Specialist Group.
National Exotic Marine and Estuarine Species Information System (NEMESIS) - Styela clava
Smithsonian Institution. Smithsonian Environmental Research Center. Marine Invasions Research Lab.
Sea Squirt (Styela clava) Fact Sheet
National Institute of Water and Atmospheric Research (New Zealand).
Species: Styela clava
Joint Nature Conservation Committee (United Kingdom).
Aquatic Invasive Species: Invasive Tunicate Species Management Program
Washington Department of Fish and Wildlife.
Tunicate Identification Card: Colonial Tunicate
and Club Tunicate (PDF | 1.6 MB)
University of Washington. Washington Sea Grant Program.