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> Blenniiformes (Blennies) > Chaenopsidae (Pike-, tube- and flagblennies)
Etymology: Chaenopsis: Greek, chaeno = to yawn + Greek, opsis = appearance (Ref. 45335).
Eponymy: Dr John Stewart Stephens Jr (d: 1932) is Professor Emeritus (1993) of Environmental Biology, Occidental College, Los Angeles where he was on the faculty (1959–2003), and Executive Director (1995) of the Vantuna Research Group there, which he founded [...] (Ref. 128868), visit book page.
More on authors: Robins & Randall.

Environment: milieu / climate zone / depth range / distribution range Ecología

marino asociado a arrecife; rango de profundidad ? - 4 m (Ref. 13628). Tropical

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Western Central Atlantic: known only from Venezuela and Yucatán, Mexico.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.6 cm SL macho / no sexado; (Ref. 51458)

Short description Claves de identificación | Morfología | Morfometría

Espinas anales: 2. Species distinguished by: Side of body with 6 dark blotches; dorsal fin consisting of spines and segmented rays; total dorsal-fin elements 44 or 45. Common amongst Chaenopsids: small elongate fishes; largest species about 12 cm SL, most under 5 cm SL. Head usually with cirri or fleshy flaps on anterior nostrils, eyes, and sometimes laterally on nape; gill membranes continuous with each other across posteroventral surface of head. Each jaw with canine-like or incisor-like teeth anteriorly; teeth usually also present on vomer and often on palatines (roof of mouth). Dorsal-fin spines flexible, usually outnumbering the segmented soft rays (numbering 7 to 37), spinous and segmented-rayed portions forming a single, continuous fin; 2 flexible spines in anal fin; pelvic fins inserted anterior to position of pectoral fins, with 1 spine not visible externally and only 2 or 3 segmented (soft) rays; all fin rays, including caudal-fin rays, unbranched (simple). Lateral line absent. Scales absent (Ref.52855).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador : Williams, Jeffrey T. | Colaboradores

Cervigón, F., 1994. Los peces marinos de Venezuela. Volume 3. Fundación Científica Los Roques, Caracas,Venezuela. 295 p. (Ref. 13628)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Data deficient (DD) ; Date assessed: 18 October 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00525 (0.00219 - 0.01260), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Chaenopsis stephensi Robins & Randall, 1965