Alabama cavefish (Speoplatyrhinus poulsoni) fish species and information / pictures of Alabama cavefish - Speoplatyrhinus poulsoni

Alabama cavefish (Speoplatyrhinus poulsoni) fish species information

Scientific Name
Speoplatyrhinus poulsoni

Common Name
Alabama cavefish

Biology
Dorsal soft rays (total): 9-10; Anal soft rays: 8 - 9. Long flat head constricted behind snout. White. No eyes. No pelvic fins. No branched fin rays; incised fin membranes. Caudal fin with 4 rows of papillae; 21-22 caudal rays ( all unbranched).

Classification

Classified By

Cooper & Kuehne, 1974

Class

Ray-finned fishes (Actinopterygii)

Order

Trout-perches, Pirate perches and Cavefish (Percopsiformes)

Family

Cavefishes (Amblyopsidae)

Distribution

Region

North America

Distribution

North America: known only from Key Cave in Alabama, USA.

Range

35°N - 34°N

Environment

Climate

Temperate

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

3.29 s.e. 0.46 Based on size and trophs of closest relatives

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

7.2 cm

Common Length

4.5 cm

Phylogenetic Diversity Index

PD50 = 1.0176 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

Low to moderate vulnerability (29 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

Critically Endangered (CR) (C2b)