Many-ray cusk (Microbrotula polyactis) fish species and information / pictures of Many-ray cusk - Microbrotula polyactis

Many-ray cusk (Microbrotula polyactis) fish species information

Scientific Name
Microbrotula polyactis

Common Name
Many-ray cusk

Biology
A species of Microbrotula distinguished by the following combination of characters: vertebrae 11?12 + 33?37 = 45?48; pectoral-fin rays 16?17; caudal-fin rays 7?8; lateral scale rows 47?50; dorsal-fin origin above vertebrae 7?8; anal-fin origin below vertebrae 14?15; orbit diameter 16.0?18.7% HL; fleshy interorbital width 20.0?24.4% HL; predorsal length 34.4?39.9% SL.

Classification

Classified By

Anderson, 2005

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Viviparous brotulas (Bythitidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: Southern Philippines to northern Cape York Peninsula, Australia.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

37 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 0 - 37 m (Ref. 54832)

Trophic Level

3.21 s.e. 0.45 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

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

4.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (10 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