Actinopteri (ray-finned fishes) > Gobiiformes
(Gobies) > Gobiidae
(Gobies) > Gobiinae
Etymology: Microgobius: Greek, mikros = small + Latin, gobius = gudgeon (Ref. 45335). More on authors: Jordan & Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range - 6 m (Ref. 91780), usually - m (Ref. ). Subtropical; 0°C - ; 40°N - 26°N
Western Atlantic: Maryland to Texas in USA, but absent from eastern Florida (Cape Canaveral to Cape Sable).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm TL male/unsexed; (Ref. 63669); common length : 4.3 cm TL male/unsexed; (Ref. 12193)
Morphology | Morphometrics
Distinguished by the following characteristics: general body color is light grey-brown, typically have areas of very bright iridescent blue and/or yellow; body is laterally compressed; large, nearly vertical mouth; completely scaled body; first dorsal with VII spines; ventral fins are united (Ref. 92840).
Inhabits mangrove streams with very fine silt-mud substrate (Ref. 92840).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 21.1 - 26.1, mean 23.8 °C (based on 118 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00332 - 0.01511), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.2 se; based on size and trophs of closest relatives
Generation time: 0.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K>1).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .