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Rhabdamia gracilis  (Bleeker, 1856)

Luminous cardinalfish
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| Native range | All suitable habitat | PointMap | Year 2100 |
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Rhabdamia gracilis   AquaMaps   Data sources: GBIF OBIS
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Image of Rhabdamia gracilis (Luminous cardinalfish)
Rhabdamia gracilis
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) > Apogonidae (Cardinalfishes) > Apogoninae
Etymology: Rhabdamia: Greek, rhabdos = stick + Greek, amia = a kind of shark (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 20 - 25 m (Ref. 93839).   Tropical; 32°N - 12°S

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 4329)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 12 - 13. This species is distinguished by the following characters: bluish longitudinal stripe on the middle of the body; translucent white or pink, silvery on head and abdomen; caudal peduncle sometimes with a posteriorly placed black spot; characterized further by one or both caudal fin lobes having black tip; greatest depth of body 3.3-3.6 in SL (Ref. 90102).

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

Indo-West Pacific: East Africa to the Marshall Islands and New Guinea, north to Japan (Ref. 559), south to northern Australia, including the Arafura Sea (Ref. 9819).

Biology     Glossary (e.g. epibenthic)

Inhabits lagoon and coastal reefs, among coral and rocks (Ref. 4329). Lives sympatrically with A. notatus (Ref. 76833). Forms large schools (Ref. 559). Feeds during the day in currents above reefs as well as at night (Ref. 48635).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Distinct pairing during courtship and spawning (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)

IUCN Red List Status (Ref. 96402)

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 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00480 - 0.02393), b=3.10 (2.91 - 3.29), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.26 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (K=2.67).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .
Price category (Ref. 80766):   High.