Cottus hangiongensis
(20cm)
* Endangered Species

* photo by Dr.Andrew Simons (from Samcheok County)

Habitat : Cottus hangiongensis is known as an amphidromous species. While fry live in the estuary for a couple of months, adults and young fish live in clear gravel and coarse sand riffle in streams ranging from 5 to 200 m wide and less than 1m deep.  Feeds mainly on invertebrates and small fish.

Range:  Native to the Northeast Asia:  Russian Far East, North Korea, South Korea and Japan.

Threats : Revetment constructions and dredging are main factors of population decrease. Sewage, mine, quarries, pesticides, and sediments from farmlands(including rice paddies) are also appeared to be threats.

Conservation action : No report on conservation management plan.

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Red dots : Where this species is living nowadays.
Blue dots : Where this species have been disappeared.

* Habitat of Cottus hangiongensis (Yeongdeokoship River : Yeongdeok county, Gyeongsangbuk Province)