Scientific Name
Fundulus julisia

Common Name
Barrens topminnow

Biology
Occur in vegetated pools and margins of springs and spring-fed headwaters and creeks (Ref 5723, 10294). 9.4 cm TL (Ref. 5723). Juveniles feed primarily on microcrustacea and midges; adults consume amphipods and isopods, small mayflies, terrestrial insects, and snails (Ref. 10294). Not a seasonal killifish (Ref. 27139).

Classification

Classified By

Williams & Etnier, 1982

Class

Ray-finned fishes (Actinopterygii)

Order

Live bearers, Killifishes and Rivulines (Cyprinodontiformes)

Family

Topminnows and killifishes (Fundulidae)

Distribution

Region

North America

Distribution

North America: upper Caney Fork (Cumberland River drainage) and upper Duck River (Tennessee River drainage) systems in central Tennessee, USA.

Range

36°N - 35°N

Environment

Climate

Temperate

Water Temperature From

10 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic; non-migratory

Trophic Level

3.08 s.e. 0.37 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

7.0 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

Vulnerable (VU) (D2)