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Rainbow trout (Oncorhynchus mykiss) — Salmonidae

Rainbow trout

Oncorhynchus mykiss
Family: Salmonidae
LC · Least Concern

The Rainbow trout (Oncorhynchus mykiss) is a fish that lives in both fresh and salt water of the family Salmonidae that grows up to 122 cm.

Length
122 cm
Water
Euryhaline
Depth
0.0–200.0 m
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Highly prized

Description

The rainbow trout is a streamlined salmonid of the family Salmonidae that can reach about 120 cm but usually stays much smaller. It is characterised by the adipose fin between dorsal and tail fin and a broad pink to rainbow-coloured band along the silvery, dark-speckled flank. The species is native to the cool waters of western North America but has been introduced worldwide for sport fishing and aquaculture and now also occurs in many European rivers and lakes. It hunts insects, crustaceans and small fish and spawns in cool, flowing water. Some populations migrate to sea as 'steelhead'. Because of its tasty flesh it is a highly valued food and sport fish.

Frequently asked questions

How do you recognise the Rainbow trout?

The Rainbow trout has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern.

Where does the Rainbow trout live?

The Rainbow trout lives in both fresh and salt water and is mostly found around mixed bottom.

How big does the Rainbow trout get?

The Rainbow trout grows to a maximum of about 122 cm. On average the species is around 60 cm.

Is the Rainbow trout dangerous to humans?

No, the Rainbow trout is harmless to humans.

Is the Rainbow trout edible?

Yes, the Rainbow trout is a highly prized food fish.

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All data

Identification

Dutch name
Regenboogforel sourced
English name
Rainbow trout verified
Scientific name
Oncorhynchus mykiss
Family
Salmonidae
Other names
Baja California rainbow trout; Bow; Brown trout; Coast angel trout; Coast rainbow trout verified

Appearance

Size class
Extra large verified
Max length (cm)
122.0 verified
Average length (cm)
60.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey sourced
Pattern
Spots sourced
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Mixed bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
200.0 verified
Origin
Non-native (invasive) verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Small groups verified
Territorial
Yes verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
Yes verified
levensduur_max_jaar
11.0 verified

For anglers

Edibility
Highly prized verified
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Oncorhynchus

More from the family Salmonidae

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