Social Tunicate

About this species

Clavelina robusta is a species of tunicate, in the genus Clavelina. Like all ascidians, these sessile animals are filter feeders.

Text from the Wikipedia article “Clavelina robusta”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

January: 35 records
February: 12 records
March: 22 records
April: 26 records
May: 24 records
June: 22 records
July: 15 records
August: 34 records
September: 16 records
October: 17 records
November: 30 records
December: 22 records

Depth and water temperature

Depth

Mostly recorded at 3–15 m · Deepest record: 15 m

0–10 m: 2 records
10–20 m: 3 records

Water temperature

Recorded in surface water of 26–29 °C

26–28 °C: 1 records
28–30 °C: 5 records

Photos

(c) desertnaturalist, some rights reserved (CC BY) · CC BY · iNaturalist
(c) desertnaturalist, some rights reserved (CC BY) · CC BY · iNaturalist
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist
(c) Tom Heijnen, some rights reserved (CC BY) · CC BY · iNaturalist
(c) portioid, some rights reserved (CC BY) · CC BY · iNaturalist

Names and classification

English: Social Tunicate

Names in 1 more languages

French: Ascidie à bouche claire

Similar species

Clavelina moluccensis
Clavelina detorta
Clavelina fecunda
Stalked sea squirt
Nephtheis fascicularis

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
Conservation status as published by GBIF (IUCN Red List).
49 open-data records from 1993 to 2014.
Species data updated October 26, 2026.