Country Species Summary

Anguilla japonica in Taiwan
Japanese eel

Anguilla japonica Temminck & Schlegel, 1846
Family:	Anguillidae (Freshwater eels)	picture (Anjap_u1.jpg) by Lovshin, L.
Order:	Anguilliformes (eels and morays)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Japanese eel
Max. size:	150 cm TL (male/unsexed; Ref. 9828); max. published weight: 760 g (Ref. 40637)
Environment:	demersal; catadromous ; depth range 1 - 400 m
Climate:	subtropical; 4 - 27°C; 42°N - 22°N
Global Importance:	fisheries: highly commercial; aquaculture: commercial
Resilience:	Low, minimum population doubling time 4.5 - 14 years (K=0.07)
Distribution:	Asia: Japan to the East China Sea, Taiwan, Korea, China and northern Philippines. Spawning grounds of this species are presumed to be in the western Mariana Islands, at a salinity front near 15°N and 140°E (Ref. 54488). Most expensive food fish in Japan. Introduced elsewhere.
Diagnosis:	Vertebrae: 114-118. Plain-colored.
Biology:	Spawning occurs in the sea; small eels ascend the rivers in schools; develop and grow in freshwater. The species may crawl over land at night from one place to another (Ref. 5258, 11230). Feeds on crustaceans, insects and fish (Ref. 5258). Utilized fresh, smoked, canned and frozen; eaten steamed, broiled and baked (Ref. 9988). Used in Chinese medicine (Ref. 12166)
Threatened:	Not Evaluated, see IUCN Red List , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino. 1984. (Ref. 559)
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Taiwan country information
Common names:	日本鰻	Ref: Wu, H.L., K.-T. Shao and C.F. Lai (eds.), 1999
Status:	native	Ref:
Salinity:	freshwater, brackish, marine
Importance:	highly commercial	Ref: FAO, 2000
Aquaculture:	commercial	Ref: FAO, 1997
Uses:	no uses
Comments:	Recorded from northern Taiwan (including Tung-hsiao, Tai-chung, and Chang-hwa) (Ref. 43515); collected from mangrove creeks in Chu-Wei and Chu-Nan (Ref. 48455). Also known from the Penghu Islands (Ref. 43515, 55073). In rivers, populations have significantly decreased in the past decade (Ref. 54416). A gradual decrease in allelic diversity has also been reported (Ref. 54416). Taiwan presently dominates aquaculture production (Ref. 9988). Also Ref. 11230, 36073.
National Checklist:	Taiwan
Country Information:	www.cia.gov/cia/publications/factbook/geos/tw.html
Occurrences:	Occurrences Point map
Main Ref:	Shen, S.C. (ed.), 1993
National Database:	The Fish Database of Taiwan
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Modified: Ortañez, Auda Kareen

Entered: Cruz, Tess

CGNET - US

Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07

	Ref.:		Glossary
		(e.g. 9948)		(e.g. cephalopods)
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