Isle of Pines rivulus (Rivulus insulaepinorum) fish species and information / pictures of Isle of Pines rivulus - Rivulus insulaepinorum

Isle of Pines rivulus (Rivulus insulaepinorum) fish species information

Scientific Name
Rivulus insulaepinorum

Common Name
Isle of Pines rivulus

Biology
Inhabits permanent and temporary waters, preferring clear water without much aquatic vegetation and frequenting bottoms of small stones or course sand. Hides in the substrate, often staying for considerable periods of time. Largest adults were taken from small puddles in rice fields that had dried up after irrigation was suspended. Associates with Gambusia punctata, G. puncticulata and Cichlasoma tetracanthus (Ref. 13498). Not a seasonal killifish (Ref. 27139).

Classification

Classified By

de la Cruz & Dubitsky, 1976

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Rivulines (Rivulidae)

Distribution

Region

Central America

Distribution

Central America: known only from Isle of Pines, Cuba.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic; non-migratory

Trophic Level

3.22 s.e. 0.39 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

6.0 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

Unknown

Vulnerability

Low vulnerability (10 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