Bearded silverside (Atherion elymus) fish species and information / pictures of Bearded silverside - Atherion elymus

Bearded silverside (Atherion elymus) fish species information

Scientific Name
Atherion elymus

Common Name
Bearded silverside

Biology
Dorsal spines (total): 4 - 6; Dorsal soft rays (total): 8-13; Anal spines: 1; Anal soft rays: 13 - 15. Mouth barely protractile and with thin lips. Basihyal and mesopterygoids usually with teeth. No notch present at the anterior border of preopercular bone. Face with Shangreen denticles. Ascending process of premaxilla with no lateral processes present. Distal end of maxilla blunt and truncate.

Classification

Classified By

Jordan & Starks, 1901

Class

Ray-finned fishes (Actinopterygii)

Order

Silversides (Atheriniformes)

Family

Silversides (Atherinidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: southern Japan south to northern Queensland, Australia. Has been collected close to the islands in Micronesia, Melanesia, Fiji and New Guinea.

Range

30°N - 18°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

3 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 0 - 3 m (Ref. 30874)

Trophic Level

3.4 s.e. 0.45 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

5.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest; bait: occasionally

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

Least Concern (LC)