Two-spined slopebrotula (Tuamotuichthys bispinosus) fish species and information / pictures of Two-spined slopebrotula - Tuamotuichthys bispinosus

Two-spined slopebrotula (Tuamotuichthys bispinosus) fish species information

Scientific Name
Tuamotuichthys bispinosus

Common Name
Two-spined slopebrotula

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 81; Anal spines: 0; Anal soft rays: 60. Head profile above eye moderately depressed. Head and body with large scales. Upper and lower opercular spines strong. Neural spines of vertebrae 6-14 truncate. Pectoral peduncle as long as broad. Posterior part of maxilla expanded, 5.5 % SL. Palatine teeth present. Eyes well-developed. Gill rakers 11, 3 long rakers interrupted by short platelike rakers. Pectoral fin rays 22. Caudal fin rays 13. Vertebrae 13 + 39 = 52.

Classification

Classified By

M?ller, Schwarzhans & Nielsen, 2004

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Viviparous brotulas (Bythitidae)

Distribution

Region

Southern Pacific

Distribution

Southern Pacific: Tuamotu Archipelago.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

536 m

Depth To - meters

536 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 536 - 536 m (Ref. 51829)

Trophic Level

3 s.e. 0.36 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

8.8 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

Unknown

Vulnerability

Low vulnerability (16 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