Land Use in Topeka Shiner (Notropis Topeka) Watersheds in Missouri and Efficacy of Orangespotted Sunfish (Lepomis Humilis) as Spawning Associates
Prentice, Alex L.
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Topeka shiner (Notropis topeka) populations have declined throughout their range, only two populations (14% of historic populations) remain in Missouri. The Missouri Department of Conservation supported this study to assist efforts for the recovery of the State and Federally endangered shiner. This study‟s purpose was threefold: 1) compare percentages of land use/cover and human threats among extant, primary proposed reintroduction, and historic Topeka shiner watersheds in Missouri, 2) determine if female orangespotted sunfish (Lepomis humilis) are necessary to induce male orangespotted sunfish spawning behaviors (i.e. nest building, terri-toriality), 3) determine if Topeka shiners will initiate spawning behaviors with only male orang-espotted sunfish present. Percentages of land use/cover and extent of human threats was varia-ble among watersheds and data (GIS) were displayed to aid in reintroduction efforts. Male or-angespotted sunfish initiated spawning behaviors without females and other fish present. Tope-ka shiners initiated spawning behavior with only male orangespotted sunfish present.