Lethenteron reissneri
 (22cm)
 * Endangered Species

  L. reissneri (adult)
 collected and photo by Kim, DaeMin
 (Goseong county, Kangwon Province)

L. reissneri (adult)
collected by Kim, DaeMin., Kim, HiJoong. and Jeon, HyungBae
(Sooncheon county, Jeollanam Province)
© 2009 photo by Jeon, HyungBae

L. reissneri (larva)
collected by Kim, DaeMin., Kim, HiJoong. and Jeon, HyungBae
(Sooncheon county, Jeollanam Province)
© 2009 photo by Jeon, HyungBae

Habitat : Lethenteron reissneri is a land-locked type of lamprey like many other non-parasitic Brook Lampreys. Adults are found on gravel or cobble-bottomed riffles with moderate to low current and 3 to 100 m wide, and runs less than 1m deep. The shore tends to be richly vegetated or forested. Ammocoetes live in mud or sand-bottomed pool, feeding organic matters deposited in substrate.

Range:  Native to Northeast Asia:  Russian Far East, North Korea, South Korea, Japan and Heilongjiang River drainages in northeastern China and eastern Mongolia.

Threats : Dredging, sewage, polluted sediment, mines, quarries, and revetment construnctions for flood control are main threats.

Conservation action : No report on protective measurements.

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

* Habitat of Lethenteron reissneri (Myeongpa Creek : Goseong county, Kangwon Province)