Chefoo thryssa (Thryssa chefuensis) fish species and information / pictures of Chefoo thryssa - Thryssa chefuensis

Chefoo thryssa (Thryssa chefuensis) fish species information

Scientific Name
Thryssa chefuensis

Common Name
Chefoo thryssa

Biology
Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 25 - 31. Belly with 16 to 18 + 9 or 10 = 25 to 28 keeled scutes from isthmus to anus. Maxilla short, not reaching back beyond hind border of pre-operculum; first supra-maxilla long, at least half length of second. Lower gill rakers with serrae not distinctly clumped.

Classification

Classified By

G?nther, 1874

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Anchovies (Engraulidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: China to Korea.

Range

39°N - 21°N, 111°E - 129°E

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

pelagic-neritic

Environment

Marine; pelagic-neritic

Trophic Level

3.25 s.e. 0.46 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

10.7 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

Unknown

Vulnerability

Low vulnerability (12 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated