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Channa orientalis in Taiwan
Walking snakehead

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Channa orientalis   Bloch & Schneider, 1801
Family:	Channidae (Snakeheads)			picture (Chori_u2.jpg) by Hippocampus-Bildarchiv
Order:	Perciformes  (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Walking snakehead
Max. size:	33.0 cm TL (male/unsexed; Ref. 41236)
Environment:	benthopelagic; potamodromous; pH range: 6 - 8; dH range: 5 - 19
Climate:	tropical; 23 - 26°C
Global Importance:	fisheries: minor commercial; aquarium: commercial
Resilience:	High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:	Asia: Afghanistan and Baluchistan southward to Sri Lanka and eastward to Indonesia.
Diagnosis:	Dorsal soft rays (total): 33-36; Anal soft rays: 21-23. Caudal fin roundly pointed.
Biology:	A broadly adapted species occurring in rivers, lakes, ponds, mountain streams and even brackish water (Ref. 12693). Usually hides under the cover of marginal roots and bogwood. Found in quiet, shaded, clear, flowing water with a silt or gravel substrate (Ref. 6028). Can tolerate very stagnant, poorly oxygenated and turbid water. Also tolerates very foul water (Ref. 1479). Feeds largely on insects and crustaceans. A small percentage of fish is also included in the diet. Spawns in shallow water with a silt or gravel substrate. Tolerates a temperature of 36.5°C
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Talwar, P.K. and A.G. Jhingran. 1991. (Ref. 4833)
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Taiwan country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:
Salinity:	freshwater
Regulations:	no regulations		Ref:
Uses:	no uses
National  Checklist:	Taiwan
Country Information:	www.cia.gov/cia/publications/factbook/geos/tw.html
Occurrences:	Occurrences    Point map
Main Ref:	Menon, A.G.K., 1999
National Database:	The Fish Database of Taiwan
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | Bio-Quiz | E-book | Field guide | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | National databases | PubMed | Recipes | Scirus | Tree of Life | Zoological Record Other web sites |
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	Entered:  Torres, Armi G.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07