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Gymnogobius castaneus (O'Shaughnessy, 1875) Biringo |
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photo by
Kim, I.-S. |
| Family: | Gobiidae (Gobies), subfamily: Gobionellinae | |||
| Max. size: | 8 cm TL (male/unsexed) | |||
| Environment: | demersal; freshwater; brackish; marine, amphidromous | |||
| Distribution: | Asia: Japan and in the Kuril islands. | |||
| Diagnosis: | Dorsal spines (total): 8-8; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 9-9 | |||
| Biology: | Inhabits freshwater lakes and streams (Ref. 81467). The females show breeding colors. Caught for food in Japan. | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 06 March 2020 Ref. (130435) | |||
| Threat to humans: | harmless | |||