New York Natural Heritage Program
Iowa Darter
Etheostoma exile (Girard, 1859)
Ray-finned Fishes

Habitat [-]
Iowa darters inhabit slow, clear waters of lakes, ponds, and streams with ample submerged vegetation and substrates consisting of sand, peat, and/or organic material (Lee et al. 1980; Smith 1985). They are usually found among rocks or under shelter along the bottom. Spawning areas consist of shallower waters with ample vegetation such as roots and plant debris for egg laying (Copes 1976).

Associated Ecological Communities [-]
  • Deepwater river
    The aquatic community of very large, very deep, quiet, base level sections of streams with a very low gradient. In places the water is deep enough so that light cannot reach the river bottom.
  • Great Lakes aquatic bed
    The aquatic community of the protected shoals of the Great Lakes or Lake Champlain. They occur in quiet bays that are protected from extreme wave action by islands, shoals, or barrier bars, and typically support large areas of "weeds" or aquatic macrophytes.
  • Marsh headwater stream
    The aquatic community of a small, marshy perennial brook with a very low gradient, slow flow rate, and cool to warm water that flows through a marsh, fen, or swamp where a stream system originates. These streams usually have clearly distinguished meanders (i.e., high sinuosity) and are in unconfined landscapes.

Associated Species [-]
  • Blackchin Shiner (Notropis heterodon)