Crystal darter (Crystallaria asprella)

Scientific name: Crystallaria asprella Jordan, 1878

Crystal darter (Crystallaria asprella)

The Crystal darter (Crystallaria asprella) is a freshwater fish of the family Percidae.

Biology

Dorsal spines (total): 10 - 17; Dorsal soft rays (total): 11-15; Anal soft rays: 12 - 16. Gape width 3.7-6.1% SL; preorbital blotch adjoined to or narrowly separate from anterior orbital rim; and pelvic fins not falcate; cheek scale rows 4-14, modally 11; opercle scale rows 2-13, modally 4; mid-lateral blotches 8-14, modally 10; anal-fin rays 12-16, modally 14; dorsal-fin spines 10-17, modally 14; scales below the lateral line 7-14, modally 9.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Crystallaria asprella
Family
Percidae (Perches)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
16.0
Common length
9.0
Environment
Freshwater; demersal
Climate
Temperate
Distribution
North America: Mississippi River basin from Ohio to Minnesota and south to southern Mississippi, northern Louisiana and southeastern Oklahoma in the USA; and on Gulf Slope in Escambia, Mobile Bay and Pearl River drainages. Now extirpated from Ohio, Kentucky, Indiana and Illinois.
Conservation status (IUCN)
Vulnerable (VU) (A1c)
Threat to humans
Harmless
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (tmax=3)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated