Rio de la Plata onesided livebearer (Jenynsia multidentata) fish species and information / pictures of Rio de la Plata onesided livebearer - Jenynsia multidentata

Rio de la Plata onesided livebearer (Jenynsia multidentata) fish species information

Scientific Name
Jenynsia multidentata

Common Name
Rio de la Plata onesided livebearer

Biology
Dorsal soft rays (total): 8-9; Anal soft rays: 10. (1) round or short, horizontal dash-shaped markings on sides that form approximately five to seven rows and also lines that extend for more than four scales in length on ventral caudal peduncle in adult females and large males; (2) presence of a distinct swelling between urogenital opening and anterior base of anal fin in females.

Classification

Classified By

Jenyns, 1842

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Four-eyed fishes, onesided livebearers & white-eye (Anablepidae)

Distribution

Region

South America

Distribution

South America: Rio de Janeiro, Brazil to northern Argentina.

Range

Unknown

Environment

Climate

Temperate

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

Trophic Level

2.9 s.e. 0.35 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

True

Physical Size and Genetics

Maximum Length

6.56 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

Aquarium: commercial

Vulnerability

Low vulnerability (12 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