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> Blenniiformes (Blennies) > Dactyloscopidae (Sand stargazers)
Etymology: Dactyloscopus: Greek, daktylos = finger + Greek, skopein = to look (Ref. 45335).
Eponymy: Major and Mrs Joseph Byers The etymology says: “I take pleasure in naming this species after Major and Mrs. [...] (Ref. 128868), visit book page.

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

marino demersal; rango de profundidad 0 - 2 m (Ref. 58018). Tropical

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

Eastern Pacific Ocean from Mexico south of the Gulf California to Panama.

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.0 cm NG macho / no sexado; (Ref. 37955)

Short description Claves de identificación | Morfología | Morfometría

Radios blandos anales: 31 - 35. Dactyloscopus byersi differs from Dactyloscopus heraldi in a number of features: one row of scales above the curved portion of the lateral line (vs. none); A 31-35, modally 34 (vs. 29-33, modally 32); upper lip fimbriae 13-18, modally 15 (vs. 11-14, modally 12); preopercular sensory pores increases in number with size, but more present in D. byersi of comparable sizes; chevron markings prominent on the side posteriad (vs. weak or absent) and absence of dark bars on the dorsum (vs. present) (Ref. 82814).

Feeds on small fishes and invertebrates (Ref. 37955).

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

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

De la Cruz Agüero, J., M. Arellano Martínez, V.M. Cota Gómez and G. de la Cruz-Agüero, 1997. Catalogo de los peces marinos de Baja California Sur. IPN-CICIMAR, La Paz, Mexico. P. 346. (Ref. 37955)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 25 May 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
componentes alimenticios
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consumo de alimento
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Ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 22.3 - 29.1, mean 26.4 °C (based on 177 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 4.0 ±0.62 se; based on food items.

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

Dactyloscopus byersorum Dawson, 1969