Gymnapogon urospilotus, B-spot cardinalfish

Gymnapogon urospilotus Lachner, 1953

B-spot cardinalfish
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Gymnapogon urospilotus   AquaMaps   Data sources: GBIF OBIS
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Image of Gymnapogon urospilotus (B-spot cardinalfish)
Gymnapogon urospilotus
Picture by Williams, J.T.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Kurtiformes (Nurseryfishes, cardinalfishes.) > Apogonidae (Cardinalfishes) > Pseudamiinae
Etymology: Gymnapogon: Greek, gymnos = naked + Greek, pogon = beard (Ref. 45335).
More on author: Lachner.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 0 - 18 m (Ref. 90102). Tropical; 30°N - 18°S

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

Indo-Pacific: Taiwan and Ryukyu Islands south to Australia eastward to French Polynesia (Society Islands); throughout Micronesia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 2.7 cm SL male/unsexed; (Ref. 1602)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 9 - 10. Distinct dark B-shaped spot on caudal fin base (Ref. 37816).
Body shape (shape guide): elongated; Cross section: oval.

Biology     Glossary (e.g. epibenthic)

Occurs around coral reefs, schooling with young of other apogonids (Ref. 559). Nocturnal species (Ref. 7300).

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. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 05 February 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
Diet composition
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Ecology
Ecology
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Length-weight rel.
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | National databases | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index
(Ref. 82804) 		PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level
(Ref. 69278) 		3.2   ±0.4 se; based on size and trophs of closest relatives
Resilience
(Ref. 120179) 		High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability
(Ref. 59153) 		Low vulnerability (10 of 100). 🛈
Nutrients
(Ref. 124155) 		Calcium = 561 [194, 2,593] mg/100g; Iron = 2.66 [0.85, 6.49] mg/100g; Protein = 18.1 [16.2, 20.0] %; Omega3 = 0.104 [0.022, 0.526] g/100g; Selenium = 66.3 [10.8, 317.8] μg/100g; VitaminA = 46.7 [5.4, 387.6] μg/100g; Zinc = 6.43 [2.65, 12.81] mg/100g (wet weight);