Protoreaster nodosus (Linnaeus, 1758)
Horned sea star
photo by Tabaranza, Don Geoff

Family:  Oreasteridae ()
Max. size:  30 cm WD (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 37 m
Distribution:  Indo-West Pacific: from Seychelles to Australia and Japan.
Biology:  It is known as a good bioindicator species for monitoring reef health (Ref. 85384) and has been harvested extensively as an ornament (Ref. 98606). Occurs on seagrass beds and seaweed areas (Refs. 82802, 89727), particularly on reef flats (Ref. 85384). It is known to be an extra-oral feeder (Ref. 85384) or microphagous feeder (Ref. 98606). Feeds on microbial and microalgal films, both living and decomposing seagrass blades, and filamentous green algae (Ref. 98606).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:   

Entered by: Pan-Saniano, Marianne - 20.03.06
Modified by: Parducho, Vina Angelica - 05.06.15

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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