Pallid pearlfish (Pyramodon ventralis) fish species and information / pictures of Pallid pearlfish - Pyramodon ventralis

Pallid pearlfish (Pyramodon ventralis) fish species information

Scientific Name
Pyramodon ventralis

Common Name
Pallid pearlfish

Biology
Eel-like, moderate to relatively deep body depth; a large single vomerine fang; pelvic fin rays present; swim bladder large, filling visceral cavity and extending past anus; dorsal and anal fin radials robust and elongate; dorsal fin anteriad or directly over anal fin origin; lacking rockerbone, cardiform teeth, and intrinsic swim bladder constrictions or tunic ridges (Ref. 34024). Body lightly pigmented with dorsal and anal fin margins pigmented over posterior quarter; precaudal vertebrae 14-15; anus anterior, distance from snout to anus 99 to 133% head length (Ref. 34024).

Classification

Classified By

Smith & Radcliffe, 1913

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Pearlfishes (Carapidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Japan, Indonesia, Australia and New Zealand (Ref. 559) and New Caledonia (Ref. 31524).

Range

35°N -

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

184 m

Depth To - meters

470 m

Zone

benthopelagic

Environment

Marine; benthopelagic; oceanodromous (Ref. 51243); depth range 184 - 470 m (Ref. 58302)

Trophic Level

3.71 s.e. 0.63 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

18.1 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low vulnerability (10 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated