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Published Dec 11, 2010

The Ohio Aquatic GAP (OH-GAP) is a pilot project that is applying the GAP concept to aquatic—specifically, riverine—data.


The mission of GAP is to provide regional assessments of the conservation status of native animal species and to facilitate the application of this information to land-management activities. OH-GAP accomplished this through

  • mapping aquatic habitat types,
  • mapping the predicted distributions of fish, crayfish, and bivalves,
  • documenting the presence of aquatic species in areas managed for conservation,
  • providing GAP results to the public, planners, managers, policy makers, and researchers, and
  • building cooperation with multiple organizations to apply GAP results to state and regional management activities.

Gap analysis was conducted for the continuously flowing streams in Ohio. Lakes, reservoirs, wetlands, and the Lake Erie islands were not included in this analysis. The streams in Ohio are in the Lake Erie and Ohio River watersheds and pass through six of the level III ecoregions defined by Omernik(1987): the Eastern Corn Belt Plains, Southern Michigan/Northern Indiana Drift Plains, Huron/Erie Lake Plain, Erie Drift Plains, Interior Plateau, and the Western Allegheny Plateau.

For more information about Ohio’s Aquatic Gap Program, please visit their website.

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