Robust assfish (Bassozetus robustus) fish species and information / pictures of Robust assfish - Bassozetus robustus

Robust assfish (Bassozetus robustus) fish species information

Scientific Name
Bassozetus robustus

Common Name
Robust assfish

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 115-123; Anal spines: 0; Anal soft rays: 94 - 102; Vertebrae: 64. Snout inflated; eyes much smaller than snout; opercular spine weak or absent; preopercle without spines and posteriorly expanded almost reaching posterior margin of opercle; pseudobranchial filaments 2 (Ref. 34024).

Classification

Classified By

Smith & Radcliffe, 1913

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Cusk-eels (Ophidiidae)

Distribution

Region

Circumglobal

Distribution

Circumglobal: In tropical to temperate waters.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1035 m

Depth To - meters

4420 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 1035 - 4420 m (Ref. 75877), usually 1069 - 1922 m (Ref. 84269)

Trophic Level

3.71 s.e. 0.61 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

64.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5001 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

Moderate to high vulnerability (53 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

Least Concern (LC)