Actinopteri (ray-finned fishes) > Blenniiformes
(Blennies) > Tripterygiidae
(Triplefin blennies) > Tripterygiinae
Etymology: Enneanectes: Greek, ennea = nine times + Greek, nektos = that swimms (Ref. 45335). More on author: Rosenblatt.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated. Subtropical; - 9°N
Western Atlantic: Florida, Bahamas, N. & W. Caribbean, & Antilles south to St. Kitts.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm TL male/unsexed; (Ref. 7251)
Morphology | Morphometrics
soft rays: 16 - 17. This species is distinguished by the following characters: naked belly, pectoral-fin base, and cheek; adults with spiny preorbital bone; blunt snout; 3 rows of scales above rear pored scales, first 2 rows about equal-sized; first dorsal fin relatively short; fifth body bar prominently darker than first 4 and typically wider than 4-5 interspace; first four body bars are usually indistinct, often barely distinguishable; 4-5 interspace without central dark patch or dark accessory bar; 2 broad and solid dark or dusky red bands on caudal fin (in breeding males all dark); pale band flanked with dark or red stripes from eye across upper jaw; second dorsal fin with 3 rounded dark spots on membranes near the spine bases and thin band of fine speckling on outer rim of fin; anal fin with 4 or 5 dark patches; mode of D III+XII+8 and A II, 16; mode of 15 pored lateral-line scales and 21 scales in notched midline row (Ref. 93957).
Adults inhabit patch reefs and rocky bottoms (Ref. 5521). Eggs are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Victor, B.C., 2013. The Caribbean roughhead triplefin (Enneanectes boehlkei): DNA barcoding reveals a complex of four West Indian sympatric cryptic species (Teleostei: Blennioidei: Tripterygiidae). J. Ocean Sci. Found. 7:44-73. (Ref. 93957)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 26.3 - 28.2, mean 27.4 °C (based on 531 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00246 - 0.01227), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.7 ±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.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .