Masu salmon (Oncorhynchus masou masou) fish species and information / pictures of Masu salmon - Oncorhynchus masou masou

Masu salmon (Oncorhynchus masou masou) fish species information

Scientific Name
Oncorhynchus masou masou

Common Name
Masu salmon

Biology
The fluviatile form generally inhabits headwaters and often maintains a territory; it feeds mainly on insects but also on small crustaceans and fishes. The sea-run form goes downstream forming schools, and after a short stay in the brackish zone enters the sea where it feeds on small fishes and pelagic crustaceans. Oviparous (Ref. 205). Eggs are buried in unguarded nests (Ref. 205). Marketed fresh and frozen; eaten broiled and baked (Ref. 9988).

Classification

Classified By

Brevoort, 1856

Class

Ray-finned fishes (Actinopterygii)

Order

Salmons (Salmoniformes)

Family

Salmonids (Salmonidae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: Sea of Okhotsk and Sea of Japan; northern Japan and eastern Korea Peninsula.

Range

65°N - 34°N, 127°E - 158°E

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

200 m

Zone

benthopelagic

Environment

Marine; freshwater; brackish; benthopelagic; anadromous (Ref. 51243); depth range 0 - 200 m (Ref. 50550)

Trophic Level

3.6 s.e. 0.59 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

79.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; aquaculture: commercial; gamefish: yes

Vulnerability

High vulnerability (55 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (tm=4; tmax=6; Fec=1,000)

Threat To Humans

Harmless

IUCN Red List Status