Sunrise dartfish (Navigobius asayake), first described by Okamoto & Motomura, 2018 is a tiny fish. Adults typically reach 4.90 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 20 to 150 metres. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Data Deficient.
Dorsal spines (total): 7; Dorsal soft rays (total): 18 - 19; Anal spines: 1; Anal soft rays: 19; Vertebrae: 26. This species is distinguished by the following set of characters: D2 I,18-19; A I,19; pectoral-fin rays 21-22; gill rakers 5-6 + 13-15; head length 25.1-26.4% SL; eye diameter 8.6-10.0% SL; pelvic-fin length 15.2-16.1% SL. Colouration: yellow stripe extending from behind upper part of eye to beneath first dorsal fin .Cross section: oval.
Behavioural data for Sunrise dartfish is currently being reviewed.
Marine; reef-associated; depth range 20 - 150 m . Temperate Northwest Pacific: Japan.
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