Actinopteri (ray-finned fishes) > Blenniiformes
(Blennies) > Chaenopsidae
(Pike-, tube- and flagblennies)
Etymology: Chaenopsis: Greek, chaeno = to yawn + Greek, opsis = appearance (Ref. 45335). More on authors: Robins & Randall.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 5 - 20 m (Ref. 9710). Tropical
Western Central Atlantic: Florida (USA), Bahamas, Puerto Rico, Grand Cayman Island, Virgin Islands, Antigua, Barbados, Aruba, Curaçao, Colombia, and Venezuela.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm TL male/unsexed; (Ref. 7251)
(total): 18 - 21;
soft rays: 33 - 37. Light brown with pale dots and a narrow mid-lateral brown stripe, sometimes broken into blotches; faint bars on body; small black spot at front of dorsal fin; mature males with more yellow on head, gill membranes black; branchiostegal rays blue (Ref. 13442).
Occurs in groups, one to a hole, in limestone or coral rubble in clear water. Feeds on small crustaceans, worms, and fishes (Ref. 5521).
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. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 26.4 - 28.2, mean 27.5 °C (based on 520 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00184 - 0.01190), b=3.08 (2.86 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.55 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Nutrients (Ref. 124155
): Calcium = 146 [81, 288] mg/100g ; Iron = 0.73 [0.41, 1.25] mg/100g ; Protein = 18.7 [17.6, 19.8] % ; Omega3 = 0.13 [0.07, 0.23] g/100g ; Selenium = 26 [13, 53] μg/100g ; VitaminA = 182 [65, 493] μg/100g ; Zinc = 1.88 [1.24, 2.80] mg/100g (wet weight);