Distribution

This is the current known distribution of Botryllus schlosseri 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, Botryllus schlosseri is reported to be invasive or of concern in the following areas:

Locality	Establishment	Invasiveness
Canada	alien	invasive
United States part of the North Pacific Ocean	alien	invasive
United States part of the North Atlantic Ocean	alien	invasive
Durban Bay	alien	invasive
Alexander Bay	alien	invasive

Recent detections

	Taxon	Area	Confidence	Best hit	Reads	Names	Risk	Status	Detected	Marker
	Botryllus schlosseri Chordata > Ascidiacea > Styelidae WoRMS: 103862	Fiji	low	1.0	35	3	low	unreviewed	9 months ago	18S
	Botryllus schlosseri Chordata > Ascidiacea > Styelidae WoRMS: 103862	Fiji	low	1.0	2141	3	low	unreviewed	1 year, 2 days ago	18S
	Botryllus schlosseri Chordata > Ascidiacea > Styelidae WoRMS: 103862	Fiji	low	1.0	23	3	low	unreviewed	1 year, 3 months ago	18S
	Botryllus schlosseri Chordata > Ascidiacea > Styelidae WoRMS: 103862	Fiji	low	1.0	624	3	low	unreviewed	1 year, 3 months ago	18S
	Botryllus schlosseri Chordata > Ascidiacea > Styelidae WoRMS: 103862	Fiji	low	1.0	21	3	low	unreviewed	1 year, 6 months ago	18S

Risk analyses

Area-specific risk analyses for Botryllus schlosseri are listed below.

	Taxon	Area	Native	Introduced	Invasive	Global impact	Thermal	Priority list	Level
	Botryllus schlosseri Chordata > Ascidiacea > Styelidae WoRMS: 103862	Fiji							low

Priority lists

Botryllus schlosseri is included in the following priority lists.

Name	URL	Species	Areas
No lists found.