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

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

Marine; benthopelagic. Tropical

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

Western Pacific: Japan to the Philippines.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.0 cm TL male/unsexed; (Ref. 559)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 2; Anal soft rays: 9. Body similar to gobioid fishes. No scales on body, but with many well-developed pit organs on head and body. The fan-like caudal fin has many procurrent rays. There is a single downward short spine on the preopercular edge, and many dark-brownish pigments on the caudal peduncle.

Sometimes taken by trawl net, and found in the open sea (Ref. 559).

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

Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 14 August 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
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Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
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Abundance

Life cycle
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Maturity/Gills rel.
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Anatomy
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Physiology
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Estimates based on models

Preferred temperature (Ref. 123201): 15 - 28.9, mean 25.6 °C (based on 84 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [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): 3.3 ±0.5 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).

Gymnapogon japonicus Regan, 1905