Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Blenniidae
(Combtooth blennies) > Salariinae
Etymology: Ecsenius: Greek, exenios, -os, -on = uncontrolled, immoderate.
Environment / Climate / Range
Marine; reef-associated; depth range 2 - 40 m (Ref. 30874). Tropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.0 cm TL male/unsexed; (Ref. 2334)
(total): 13 - 14;
soft rays: 20 - 23. Golden orange in color; black spot around anus; anterior part of dorsal fin with narrow dark margin (Ref. 4404). Indonesian form grey or greenish to golden-yellow. Tail long in adults (Ref. 48636).
Indo-Pacific: Gulf of Aqaba and southeast coast of Africa to the Marquesan Islands.
Inhabits coral reefs (Ref. 9710), from clear coastal to outer reef walls, usually where currents are moderate (Ref. 48636). Swims 2 to 3 m above the benthos, feeding on plankton (Ref. 94105). During its orange-yellow phase, it is observed to school with Pseudanthias squamipinnis which it resembles in color. Individuals of Ecsenius midas can change color quickly from when on the bottom to swimming in open water to match the colors of the fishes it mixes with (Ref. 48636). It also socially mimics their swimming behavior and also of Pseudanthias huchtii and Lepidozygus tapeinosomoa (Ref. 90102). Reported to feed on zooplankton. Minimum depth reported taken from Ref. 9710. Also a planktivore (Ref. 37816). Oviparous (Ref. 205). Eggs are demersal and adhesive (Ref. 205).
Springer, V.G., 1988. The Indo-Pacific blenniid fish genus Ecsenius. Smithson. Contrib. Zool. (465):134 p.
IUCN Red List Status (Ref. 90363)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00366 - 0.01807), b=3.02 (2.83 - 3.21), based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.6 ±0.29 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .