Thelenota ananas   (Jaeger, 1833)

prickly redfish

Native range | All suitable habitat | Year 2100
This map was computer-generated and has not yet been reviewed.
Thelenota ananas   AquaMaps   Data sources: GBIF OBIS
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Image of Thelenota ananas (prickly redfish)
Picture by Purcell, Steven

Classification
Holothuroidea | Aspidochirotida | Stichopodidae
Common names | Synonyms | CoL | ITIS | WoRMS

Main reference
Conand, C. 1998. (Ref. 122)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age
Max length : 80.0 cm TL male/unsexed; (Ref. 122); common length : 45.0 cm TL male/unsexed; (Ref. 122); max. published weight: 7.0 kg (Ref. 122)

Environment
Reef-associated; depth range 0 - 30 m (Ref. 800)

Climate / Range
Tropical

Distribution
Indo-Pacific excluding Hawaii.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description
Mean live weight: 2500-7000 g. Body-wall thickness: 0.15 cm. Body firm, rigid, flattened ventrally (trivium). Bivium entirely covered with characteristic, large, leaf-shaped, lobate papillae. Trivium with brown to pink podia, more numerous on the radii, their disc about 0.04 cm in diameter, Mouth ventral, surrounded by a circle of conical papillae which are larger on dorsal side, and 20 large, brown tentacles. Anus terminal. Calcareous ring with large radial pieces and narrow interradials. Cuvierian tubules absent. Color variable on bivium, reddish orange to brown; trivium generally red; mature gonads deep purple. Spicules on tegument with cross-shaped spicules, spiny branched spicules (sometimes with median pillar), perforated plates, pseudo-tables, and grains; branched spicules larger in dorsal tegument and papillae; ventral podia with branched spicules, long rods, and large, multiperforated plates; tentacles with characteristic branched spicules, in form of a "rose-window".

Biology     Glossary (e.g. epibenthic)

Populations not reaching very high densities, with a mean of around 0.003 per square meter. Harvested by hand. Collected by skin diving or using diving gear (if not banned), making the populations very vulnerable, due to overexploitation. The processed product is of major quality and the demand is still high (Ref. 122). A common reef species mostly found from near the surface to a depth of 25 m; generally occurs on hard bottoms, large rubble and coral patches, on reef slopes and near passes. Symbiotic pearlfish (Carapidae, Ophidiiformes) are often found in its general cavity (Ref. 122); common on exposed sandy bottoms or rubble areas of the reef fringe from 10 to 30 m. Associated with Commensal pearlfish that live in the body cavity (Ref. 800). This is also found in lagoons at depths up to 30 m on clean sandy bottoms or on slabs near large coral heads. It feeds exclusively on calcareous alga Halmeda sp. (Ref. 118). Sexual reproduction takes places during warm season. A species with a low potential fecundity and late sexual maturity (Ref. 122). Spawning occurs from January to March (Ref. 99899).

IUCN Red List Status (Ref. 96402)

  Endangered (EN) (A2bd)

CITES status (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses
Fisheries: highly commercial
FAO(fisheries: production) | FisheriesWiki |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources
BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(fisheries: ; publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | National databases | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Vulnerability (Ref. 71543)
Moderate to high vulnerability (52 of 100)
Price category (Ref. 80766)
Unknown