Scientific Name
Dionda episcopa

Common Name
Roundnose minnow

Biology
Inhabits rocky pools, sometimes runs, of headwaters, creeks and small rivers. Often among filamentous algae. Feeds mainly on algae and other plants.

Classification

Classified By

Girard, 1856

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

North America

Distribution

North America: Colorado, San Antonio, upper Nueces and Rio Grande drainages in Texas and New Mexico, USA and Mexico.

Range

34°N - 25°N

Environment

Climate

Subtropical

Water Temperature From

23 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 7.4 - 8.1; dH range: 7 - 20 benthopelagic

Trophic Level

2 s.e. 0.00 Based on food items.

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

7.7 cm

Common Length

5.5 cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (15 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