Asteroidea |
Valvatida |
Oreasteridae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Reef-associated; depth range 0 - 37 m (Ref. 89727). Tropical
Indo-West Pacific: from Seychelles to Australia and Japan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 30.0 cm WD male/unsexed; (Ref. 800)
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).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
The embryo hatches into gastrula stage after 24 hours prior to fertilization; after 4-5 days, the larvae has reached the bipinnaria stage with well-developed mouth, esophagus and stomach; and at the 7th day, pre- and post-oral arms are visible (Ref. 98606).
Bos, A.R., G.S. Gumanao, J.C.E. Alipoyo and L.T. Cardona 2008 Population dynamics, reproduction and growth of Indo-Pacific horned star, Protoreaster nodosus (Echinodermata; Asteroidea). Marine Biology 156:55-63. (Ref. 89727)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 25 - 29.3, mean 28.5 (based on 2744 cells).
Fishing Vulnerability
Low vulnerability (20 of 100).
Price category
Unknown.
