Japanese halfbeak (Hyporhamphus sajori) fish species and information / pictures of Japanese halfbeak - Hyporhamphus sajori

Japanese halfbeak (Hyporhamphus sajori) fish species information

Scientific Name
Hyporhamphus sajori

Common Name
Japanese halfbeak

Biology
Common in inshore waters. Occurs in the lower part of the Yangtze River in China (Ref. 10943). Forms small schools and feed mainly on zooplankton. Meat delicious. Also caught with dip nets. Used in Chinese medicine (Ref. 12166).

Classification

Classified By

Temminck & Schlegel, 1846

Class

Ray-finned fishes (Actinopterygii)

Order

Needle fishes (Beloniformes)

Family

Halfbeaks (Hemiramphidae)

Distribution

Region

Northwest Pacific

Distribution

Northwest Pacific: Yellow Sea, Pohai Sea, Japan Sea, and the Pacific coast of Japan, extending north to Sakhalin and to Preobrazheniye Bight and Vladivostok in the Gulf of Peter the Great. Recorded from the lower part of the Yangtze River in China. Occurrence of this species south to the Ryukyu Islands and Taiwan needs verification.

Range

34°N - 17°S

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

30 m

Depth To - meters

Unknown m

Zone

pelagic-neritic

Environment

Marine; freshwater; brackish; pelagic-neritic; amphidromous; depth range 30 - ? m (Ref. 10943)

Trophic Level

3.4 s.e. 0.45 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

40.0 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

Vulnerability

Low vulnerability (25 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated