|Etheostoma exile, Iowa darter
Family: perches and darters (Percidae)
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Global Rarity Rank:
Did you know?
Iowa darters occur farther west and north than any other darter in the United States (Page and Burr 1991).
|State Ranking Justification||
Historically occurring in about 36 waters, Iowa darters are currently found in about 17 waters scattered throughout the St. Lawrence, Lake Ontario, and Lake Erie watersheds. Historical populations in Oneida Lake and nearby streams and creeks in Oswego County, and Black Lake in St Lawrence County have not been recorded since the 1930s (Carlson 2005; Cohen 2006; New York Natural Heritage Program 2008). More sampling is needed to determine the current status of Iowa darters in New York (Carlson 2005; Cohen 2006).
Little is known about the current status of Iowa darters in New York. It is currently present in about 17 waters. Recent surveys (1997-2007) yielded very few fish, typically less than 10 per site, with two sites yielding 15-20 fish (Bureau of Fisheries, New York Department of Environmental Conservation 2008; New York Natural Heritage 2008). Thorough sampling and revisitation to historical sites is needed (Carlson 2005; Cohen 2006).
Once present in over 36 waters, the Iowa darter is now extirpated from the Allegheny watershed (Carlson 2005; Cohen 2006).