Slender stonebasher (Hippopotamyrus ansorgii) fish species and information / pictures of Slender stonebasher - Hippopotamyrus ansorgii

Slender stonebasher (Hippopotamyrus ansorgii) fish species information

Scientific Name
Hippopotamyrus ansorgii

Common Name
Slender stonebasher

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 18-19; Anal spines: 0; Anal soft rays: 24 - 26. Diagnosis: dorsal fin origin nearer caudal fin base than tip of snout; origin of dorsal fin behind origin of anal fin; dorsal fin shorter than anal fin; chin (mental swelling) present but feebly developed; dorsal fin with 19 rays, anal fin with 24-26 rays (Ref. 52193).

Classification

Classified By

Boulenger, 1905

Class

Ray-finned fishes (Actinopterygii)

Order

Bony tongues (Osteoglossiformes)

Family

Elephantfishes (Mormyridae)

Distribution

Region

Africa

Distribution

Africa: Cunene, Okavango, upper Zambezi, Buzi and Pungwe rivers; an isolated population occurs in the Ruo River (lower Zambezi system) in Malawi; also in Cuanza River, Angola (Ref. 52193).

Range

11°S - 21°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal

Trophic Level

3.2 s.e. 0.40 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

15.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries:

Vulnerability

Low vulnerability (18 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)