Blacknose dace (Rhinichthys atratulus) fish species and information / pictures of Blacknose dace - Rhinichthys atratulus

Blacknose dace (Rhinichthys atratulus) fish species information

Scientific Name
Rhinichthys atratulus

Common Name
Blacknose dace

Biology
Dorsal soft rays (total): 8; Anal soft rays: 7. Body stout, spindle-shaped; mouth slightly inferior, slightly oblique and extending to below nostril; pointed barbel in groove at angle of mouth. Gill rakers short, conical, widely spaced (Ref. 54725).

Classification

Classified By

Hermann, 1804

Class

Ray-finned fishes (Actinopterygii)

Order

Carps (Cypriniformes)

Family

Minnows or carps (Cyprinidae)

Distribution

Region

North America

Distribution

North America: primarily in Atlantic slope drainages from Nova Scotia (Maritimes, Canada), to south Carolina and Georgia, USA. Its former subspecies, R. obtusus is found primarily in upper Mississippi and Ohio drainages, USA and in Manitoba, Canada.

Range

57°N - 34°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

29 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal

Trophic Level

3.05 s.e. 0.39 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

12.4 cm

Common Length

5.7 cm

Phylogenetic Diversity Index

PD50 = 0.5020 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (23 of 100)

Resilience

High, minimum population doubling time less than 15 months (tmax=3)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated