Distribution

This is the current known distribution of Ciona intestinalis based on occurrence data in the Ocean Biodiversity Information System (OBIS) and the Global Biodiversity Information Facility, as well as distribution records in the World Register of Marine Species (WoRMS).

Invasiveness

According to WoRMS, Ciona intestinalis is reported to be invasive or of concern in the following areas:

Locality	Establishment	Invasiveness
Chile	alien	invasive
South Africa (country)	alien	invasive
Canadian part of the North Atlantic Ocean	alien	of_concern
Spanish part of the Balearic Sea	alien	invasive
Canadian part of the Gulf of St-Lawrence	alien	invasive
United States part of the North Pacific Ocean	alien	invasive
China	alien	invasive
Canadian part of the North Atlantic Ocean	alien	invasive
Japan	alien	invasive
Australian part of the Tasman Sea	alien	of_concern
United Kingdom part of the English Channel	alien	invasive
Chinese part of the South China Sea	alien	invasive

Recent detections

	Taxon	Area	Confidence	Best hit	Reads	Names	Risk	Status	Detected	Marker
No alerts found.

Risk analyses

Area-specific risk analyses for Ciona intestinalis are listed below.

	Taxon	Area	Native	Introduced	Invasive	Global impact	Thermal	Priority list	Level
	Ciona intestinalis Chordata > Ascidiacea > Cionidae WoRMS: 103732 GISD: 1127 CABI: 88555	Fiji							high

Priority lists

Ciona intestinalis is included in the following priority lists.

Name	URL	Species	Areas
No lists found.