Teleostei (teleosts) >
Blenniiformes (Blennies) >
Dactyloscopidae (Sand stargazers)
Etymology: Platygillellus: Greek, platys = flat + Theodore Nicolas Gill (1837-1914) researcher of abyssal fishes and systematics (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 20 m (Ref. 28023). Tropical
Eastern Pacific: endemic to the Galapagos Islands.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 4 - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 28023)
Prefers shallow waters where the sediment size is tiny, especially intertidal areas that have white coral sand. Never found in waters that are brackish or fresh. Carnivores, which prey on a variety of benthic invertebrate animals (Ref. 28023).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Possibly viviparous with internal fertilization (Ref. 28023).
Grove, J.S. and R.J. Lavenberg, 1997. The fishes of the Galápagos Islands. Stanford University Press, Stanford, 863 p. (Ref. 28023)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 23.5 - 25.6, mean 23.8 °C (based on 20 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [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).
Trophic level (Ref.
69278): 3.5 ±0.37 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 316).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).