Scientific Name
Oncorhynchus mykiss  
Oncorhynchus mykiss麥奇鈎吻鮭
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Walbaum, 1792) Depth 0 - 5M
Chinese 麥奇鈎吻鮭 Poisonous Fish No 
Family_Chinese 鮭科 Economic Fish Yes 
Family F175 Salmonidae Edible Fish Yes  Chinese In Mainland China 麥奇大麻哈魚 
Max Length 120 cm  Aquarium Fish Yes  Common Name 鱒魚、虹鱒、麥奇鉤吻鱒 
Distribution in World North America   Distribution in Taiwan  
Habitats Fresh water  Holotype Locality Kamchatka, Russia 
Synonyms Fario gairdneri, Onchorhynchus mykiss, Onchorrhychus mykiss, Onchorynchus mykiss, Oncorhynchus gairdnerii, Oncorhynchus kamloops, Oncorhynchus mykiss nelsoni, Oncorhynchus myskis, Parasalmo mykiss, Parasalmo penshinensis, Salmo gairdneri, Salmo gairdneri irideus, Salmo gairdneri shasta ...all 32..  
Reference 臺灣魚類誌(沈等, 1993);臺灣淡水及河口魚類誌(陳及方, 1999)  Rowe, D.K. 1984 沈世傑 編 Shih-Chieh Shen ed. 1993 陳義雄,方力行 1999 
Specimen List ASIZP0080274. ASIZP0807408. ASIZP0917408. FRIP00860. FRIP01018. NMMSTP00757. NTUM06482.  
Common Name Salmon trout; Silver trout; Redband; Rainbow trout; Steelhead; Summer salmon; Trout; Steelhead trout; Coast range trout; Coast rainbow trout; Baiser ; Coast angel trout; Brown trout; Baja California rainbow trout; Kamchatka trout; Lord-fish; Kamloops; Har 
Redlist Status NL Not in IUCN Redlist     
Characteristic Head moderately large. Mouth large and protractile, minor changes occur to head, mouth and color pattern especially in spawning males; posterior end of upper jaw reaches posterior margin of eye. Body elongated, somewhat laterally compressed especially in adults; dorsal and ventral profile arched. Scales small and cycloid; lateral line complete; head naked. L.l.:134-137; dorsal soft fin rays:11-12; pelvic fin rays:9; anal fin rays:11-12. Dorsal fin base short, considerably equal to anal fin base; dorsal fin origin at middle between tip of snout and end of caudal peduncle; an adipose fin above anal fin; pelvic fin small, below dorsal fin; caudal fin forked. Dark olive dorsally, light grayish ventrally; dark spots densely spread over upper side, dorsal and caudal fins. 8-13 spots along midline of side of young, and disappeared when grow up; a purplish red stripe parallel to lateral line on adults during breeding season.
habitats Anadromous fish, but some populations are landlocked when routes are unavailable. Inhabit in moderately running and well-oxygenated water. Carnivorous, feed predominately on aquatic insects and small fishes. Well utilized commercial fish, extensively cult 
Distribution Inhabit in the eastern Pacific, introduced to Japan in end of 19th century, fertilized eggs was imported from Japan to Taiwan in middle of 20th century, and aquaculture had been well developed in northern and middle Taiwan. Rainbow trout had been introduc