Teleostei (teleosts) >
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Elacatinus: Greek, elakatines = fusiform fishes preserved in salt (Ref. 45335); cayman: Named for its tpe locality, Cayman Islands; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated. Tropical
Western Atlantic: Cayman Islands.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 2.3 cm SL male/unsexed; (Ref. 97572)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 12; Anal soft rays: 11; Vertebrae: 28. This species is distinguished by the following characters: D VII+12; A 11; pectoral rays 16-17; pelvic rays I,5 and fused into a cup; scaleless; inferior mouth; complete upper lip groove (without frenum); color: black upper head and body, pale middorsal streak behind head, lower half of head and ventral aspect of body white, wide iridescent blue lateral band divides black upper body, band contains a full-length midline yellow stripe which extends forward onto upper orbit and meets
on snout in a V or U; notably, yellow stripe is of uniform width from eye to tail; the color pattern is distinctive, shared only with rare individuals of E. evelynae YB (YB denotes the yellow-blue striped morph). This species differs from E. evelynae by the absence of the upper-lip frenum; differs from E. genie with the latter having a wider pale lateral band that is often bright white and the indistinct yellow stripe widens prominently behind the eye and no pale middorsal streak behind the head (Ref. 97572).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Victor, B.C., 2014. Three new endemic cryptic species revealed by DNA barcoding of the gobies of the Cayman Islands (Teleostei: Gobiidae). J. Ocean Sci. Found. 12:25-60. (Ref. 97572)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 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).
