Contacts    Download Data

NDIS Home Page Hunting Page Fishing Page Wildlife Species Page Exploring Habitat Page Conservation/Planning Page Navigation Menu

Wildlife Species



Wildlife Home
Amphibians
Frogs
Salamanders
Toads
Birds
Birds of Prey
Blackbirds
Bobolink
Chickadees, Nuthatches, and Allies
Cormorants
Cowbirds
Cranes
Cuckoos & Anis
Dippers
Finches
Flycatchers
Grackles
Grouse, Quails and Allies
Hummingbirds
Jays, Magpies & Crows
Kingfishers
Larks
Meadowlarks
Orioles
Owls and Nightjars
Pelicans
Pigeons & Doves
Pipits
Rails & Allies
Shorebirds
Shrikes
Silky Flycatchers
Starlings
Swifts & Swallows
Thrushes
Vireos
Waders
Warblers, Sparrows & Allies
Waterfowl
Waxwings
Woodpeckers
Wrens
Fish
Bass, Sunfish & Perch
Carp, Chubs & Minnows
Catfish & Bullheads
Drums
Eel & Gar
Herring & Shad
Killifish
Livebearers
Pike
Salmon, Trout & Char
Sculpin
Silversides
Smelt
Sticklebacks
Sturgeon
Suckers & Buffalofish
Tilapia
Mammals
Armadillos
Bats
Bears
Cats
Chipmunks & Squirrels
Hoofed Mammals
Large Rodents
Mice & Rats
Opossums
Otters
Pocket Gophers
Porcupine
Prairie Dogs
Rabbits, Hares & Pika
Raccoons & Ringtails
Shrews & Moles
Skunks, Weasels & their Kin
Voles & Muskrats
Wolves, Foxes, & Coyote
Reptiles
Lizards
Skinks
Snakes
Turtles
Vipers
Whiptails


CDOW Website NDIS Home

Wildlife Iowa Darter Page


Return to species list...
This photograph may be used for non-commercial purposes.  Please give credit to the photographer.
Photo by: John Woodling
 Iowa Darter
 Etheostoma exile

Habitat: Iowa darters prefer cool, clear water over a sand or organic matter substrate (Trautman 1957). Populations in Colorado are found in lakes, over mats of rooted aquatic plants and in streams with vegetation along the stream bank extending into the water (Propst 1982). Stream specimens are collected from undercut banks and the species is absent in reaches lacking undercut banks.

Description: A small darter; mouth and snout small and inconspicuous; opercles and cheeks are scaled; two dorsal fins, first spiny, second soft-rayed; caudal fin squarish; pectoral and pelvic fins located close to each other behind the gills; anal fin with two (rarely one) spines; lateral line incomplete. Males and females have different color patterns. Males in breeding colors are brilliantly hued. Breeding males are olivaceous dorsally with darker splotches across the top of the back. The sides are red with blue, rectangular blotches. Ventrally, males are whitish with a dark wedge shape below the eye. The bottom half of the spiny, (first) dorsal fin has blue spots between spines. Above the blue spots there is a succession of three bands, orange, clear, and the outer band blue in color. Females and young are olive-brown dorsally with darker splotches across the top of the back, sides may be mottled fading to silver-white on the belly. A dark wedge shape below the eye is well developed. Adults are less than three inches long.

Range in Colorado: The species distribution in Colorado is limited. Populations are found in some plains streams in northeastern Colorado; Plum Creek and single locations on the Saint Vrain and Big Thompson River (Propst 1982) and Eleven Mile Reservoir in South Park. Iowa darters have been introduced to the upper Colorado River Basin (Shadow Mountain Reservoir) through a bait bucket transfer or inadvertant introduction through some regular fish plant.

Status: State Special Concern






         Contacts     Download Data     Wildlife     Exploring Habitat    









   spacer image








Species Occurrence Tool


Occurrence by County

Data Format:
HTML
Delimited Text
MS-Excel

 


(*) NDIS has no county occurrence data for fish at this time.

separator bar

Iowa Darter NDIS Maps
  Sample Site Locations


separator bar

Iowa Darter Specific Links
  No Iowa Darter links available!


General Wildlife Links
  Colorado Audubon
  Colorado Birding Society
  Colorado Field Ornithologist's
  Rocky Mnt. Bird Observatory
  TNC Migratory Bird Program