Scientific Name
Kryptolebias marmoratus

Common Name
Mangrove rivulus

Biology
Dark spot surrounded by yellow ring on side of caudal peduncle, just ahead of upper part of caudal fin base (Ref. 26938).

Classification

Classified By

Poey, 1880

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Rivulines (Rivulidae)

Distribution

Region

North, Central and South America

Distribution

North, Central and South America: eastern coasts of Florida (Indian River to Key West) in USA and Bahamas to Cuba, Jamaica, Cayman Island, Brazil, French Guiana, the Netherlands Antilles, Venezuela, Belize, Mexico, Puerto Rico. Throughout Caribbean (Ref. 26938).

Range

31°N - 3°N, 93°W - 49°W

Environment

Climate

Tropical

Water Temperature From

18 °C

Water Temperature To

24 °C

Depth From - meters

0 m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; brackish; ; pH range: ? - 7.5; dH range: ? - 16 benthopelagic; non-migratory; depth range 0 - ? m (Ref. 55170)

Trophic Level

3.19 s.e. 0.48 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

7.5 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5078 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Aquarium: commercial; bait:

Vulnerability

Low vulnerability (10 of 100)

Resilience

High, minimum population doubling time less than 15 months (tm=0.5)

Threat To Humans

Harmless

IUCN Red List Status

Lower Risk: least concern (LR/lc)