Obelia geniculata

Obelia geniculata (Linnaeus, 1758)
Knotted thread hydroid

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Family:	Campanulariidae ()
Max. size:
Environment:	epiphytic; marine; depth range 0 - 100 m
Distribution:	Indo-Pacific, Atlantic Ocean, Antarctic, and the Arctic. Mostly polar, but also in subtropical, temperate and boreal climates.
Diagnosis:
Biology:	Meroplanktonic (Ref. 120471). Estuarine, on bay and nearshore (Ref. 116013). This is an epiphytic species found on green and brown algae, often on Macrocystis pyrifera (Ref. 87801). Colonial (Ref. 19).
IUCN Red List Status:	Not Evaluated (N.E.) Ref. 123251)
Threat to humans:
Country info:

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