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Stegastes altus  (Okada & Ikeda, 1937)

Japanese gregory
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| Native range | All suitable habitat | PointMap | Year 2100 |
This map was computer-generated and has not yet been reviewed.
Stegastes altus   AquaMaps   Data sources: GBIF OBIS
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Image of Stegastes altus (Japanese gregory)
Stegastes altus
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Pomacentridae (Damselfishes) > Pomacentrinae
Etymology: Stegastes: Greek, stegastos, -e, -on = covered (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; non-migratory; depth range 5 - 20 m (Ref. 9710).   Subtropical; 46°N - 25°N

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 9710)

Short description Morphology | Morphometrics

Dorsal spines (total): 12 - 13; Dorsal soft rays (total): 15-17; Anal spines: 2; Anal soft rays: 12 - 13. Body color is medium brown, sometimes with slight diffusion of yellow. The edges of scales are narrowly bordered with dusky brown. The suborbital is lavender or blue and the lips are pale gray. The pectoral fins are translucent with brownish rays and yellow suffusion on posterior edge. A prominent black spot bordered with light blue is on the outer part of anterior dorsal spines running from base of 1st spine to distal tip of 5th or 6th spine.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: known only from Japan and the adjacent Ryukyu Islands. Recently reported from Taiwan (Ref. 12711) and South Korea (Ref. 77001).

Biology     Glossary (e.g. epibenthic)

Adults usually inhabit rocky reefs (Ref. 7247). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).

Main reference Upload your references | References | Coordinator : Allen, Gerald R. | Collaborators

Allen, G.R. and A.R. Emery, 1985. A review of the Pomacentrid fishes of the genus Stegastes from the Indo-Pacific, with descriptions of two new species. Indo-Pac. Fish. (3):31. (Ref. 510)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00639 - 0.03424), b=2.96 (2.76 - 3.16), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.0   ±0.00 se; Based on food items.
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low to moderate vulnerability (26 of 100) .
Price category (Ref. 80766):   Unknown.