Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Gobiodon: Latin, gobius = gudgeon + Greek, odous = teeth (Ref. 45335); irregularis: Named for its variable colouration, mainly its irregular red wavy lines on the head and upper body in juveniles and subadults.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated. Tropical
Western Indian Ocean: Gulf of Aqaba, Red Sea and Rodrigues.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.2 cm SL male/unsexed; (Ref. 94082)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Anal spines: 1; Anal soft rays: 9 - 10. This species is distinguished by the following characters: D VI+I,10-11 (usually 11); A I,9-10 (usually 9); head and body are naked; body is relatively elongate (depth 35.1-39% SL) and compressed; head is slightly pointed in juveniles, becoming more rounded in adults; snout sometimes has a slight hump above upper lip; groove between isthmus and interopercle absent; slender caudal peduncle (depth 14.5-15.8% SL); caudal fin is relatively long (22.6-24.6% SL); colour of juveniles and subadults greenish or brownish green with up to 7 red bars with bluish interspaces on head and pectoral-fin base, 3 anteriormost bars also run across eye; nape and dorsal part of body with irregular red lines and small spots; lines and dots usually vanish in adults of more than 3 cm TL; body becomes uniformly brown or reddish brown, usually with remnants of the orbital and suborbital bars (Ref. 94082).
Facultative air-breathing in the genus (Ref. 126274); This species exhibits a generalised habitat selection and occupies a great range of Acropora corals. It is found in deeper water regions, at lower reef slope and fore reef areas, and is most common in corals such as Acropora samoensis, A. valida and A. secale, but was also observed in Acropora eurystoma and A. pharaonis in the northern Red Sea (Ref. 94082).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Herler, J., S.V. Bogorodsky and T. Suzuki, 2013. Four new species of coral gobies (Teleostei: Gobiidae: Gobiodon), with comments on their relationships within the genus. Zootaxa 3709(4):301-329. (Ref. 94082)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 29.3, mean 27 °C (based on 140 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±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).
