Day's goby (Acentrogobius dayi) is a ray-finned fish of the family Gobiidae. It inhabits diadromous, migrating between freshwater and the sea waters in benthic environments. This species can reach a maximum total length of 11 cm. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 7; Dorsal soft rays (total): 10; Anal spines: 1; Anal soft rays: 9. Caudal fin rounded, a little shorter than head.: elongated.
Behavioural data for Day's goby is currently being reviewed.
Diet information for Day's goby is currently being compiled.
Reproduction data for Day's goby is currently being compiled.
Marine; freshwater; brackish; demersal; depth range ? - 18 m . Tropical Indian Ocean: Persian Gulf to Pakistan.
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