Marshall slopebrotula (Tuamotuichthys marshallensis) fish species and information / pictures of Marshall slopebrotula - Tuamotuichthys marshallensis

Marshall slopebrotula (Tuamotuichthys marshallensis) fish species information

Scientific Name
Tuamotuichthys marshallensis

Common Name
Marshall slopebrotula

Biology
Dorsal soft rays (total): 78-81; Anal soft rays: 62; Vertebrae: 47 - 49. Tuamotuichthys marshallensisdiffers from T. bispinosus in the following characters: downward-directed part of the opercular spine hidden (vs. free); precaudal vertebrae 11 ( vs. 13); dorsal fin origin above vertebra no. 5 (vs. no. 8); hypobranchial rakers of anterior gill arch developed as one large or five smaller plates provided with small spines (vs. hypobranchial without rakers or plates); soft interorbital 5.8-6.3 % SL (vs. 3.8 % SL); maximum head depth 20.0?-1.5 % SL (vs. 13.5 % SL); body depth at origin of anal fin 18.5-20.5 % SL (vs. 14.5 % SL); head pores present on occiput and upper preoperculum (vs. absent); interorbital and occipital head pores present (vs. absent); no scales on top of head (vs. scales present); dorsal rim of otolith high (vs. rim flat) (Ref. 57891).

Classification

Classified By

Nielsen, Schwarzhans, M?ller & Randall, 2006

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Viviparous brotulas (Bythitidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: Marshall Islands.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

46 m

Depth To - meters

536 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 46 - 536 m (Ref. 57891)

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

12 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 (23 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