Teleostei (teleosts) >
Gobiesociformes (Clingfishes) >
Gobiesocidae (Clingfishes and singleslits) > Diademichthyinae
Etymology: Discotrema: Greek, diskos = disc shape + Greek, trema = hole (Ref. 45335).
More on author: Briggs.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 8 - 20 m (Ref. 30874). Tropical
Western Pacific: Ryukyu Islands, Bismarck Archipelago and the Fiji Islands. Recently reported from Christmas Island (Ref. 30874), Taiwan (Ref. 5193) and the Great Barrier Reef (Ref. 2334).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm SL male/unsexed; (Ref. 48635)
Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 7 - 8; Vertebrae: 35. Distinguished from its congeners by the following characters: pectoral ray count 23-28; head width 4.3-5.3 in SL; snout length 2.8-3.5 in HL; disc length 4.2-4.9 in SL; a mid-dorsal white or pale yellow stripe and a lateral stripe on head and body (Ref. 75094)
Body shape (shape guide): elongated; Cross section: circular.
Found in protected coastal reefs from shallow reef flats to about 20 m depth along slopes and walls (Ref. 48635). Found among arms of crinoids (Ref. 2334, 559) as a commensal particularly with Comanthus bennetti (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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 2025-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 24.9 - 29.3, mean 28.5 °C (based on 1882 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [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): 3.6 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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Nutrients (Ref.
124155): Calcium = 156 [74, 323] mg/100g; Iron = 0.76 [0.42, 1.41] mg/100g; Protein = 17.4 [16.1, 18.7] %; Omega3 = 0.127 [0.063, 0.255] g/100g; Selenium = 17.3 [6.9, 44.2] μg/100g; VitaminA = 329 [86, 1,154] μg/100g; Zinc = 2.4 [1.5, 3.6] mg/100g (wet weight);