Dusky darter (Percina sciera) fish species and information / pictures of Dusky darter - Percina sciera

Dusky darter (Percina sciera) fish species information

Scientific Name
Percina sciera

Common Name
Dusky darter

Biology
Inhabit fast gravel runs, sometimes riffles, of creeks and small to medium rivers. Often found near brush (Ref. 5723, 10294). Young are found in shallower gravel riffles (Ref. 7043). Juveniles feed on midge and blackfly larvae; adults consume caddisfly and mayfly larvae (Ref. 10294). Males are larger and darker in color during breeding (Ref. 69400).

Classification

Classified By
Swain, 1883
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Perches (Percidae)

Distribution

Region
North America
Distribution
North America: Mississippi River basin from Ohio and West Virginia to eastern Illinois and south to Louisiana in the USA; Gulf drainages from Black Warrior River in Alabama to Guadalupe River in Texas, USA.
Range
41°N - 29°N

Environment

Climate
Temperate
Water Temperature From
10 °C
Water Temperature To
24 °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
benthopelagic
Environment
Freshwater; ; pH range: 6.8 - 7.8; dH range: 8 - 18 benthopelagic
Trophic Level
3.2 s.e. 0.40 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
13.0 cm
Common Length
7.5 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 (16 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4; tm=1; Fec=80-196)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated