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Full-Text Articles in Biology

An Assessment Of Night Time And Seasonal Electrofishing In The Lower Wabash River, Eric Christopher Hine Jan 2019

An Assessment Of Night Time And Seasonal Electrofishing In The Lower Wabash River, Eric Christopher Hine

Masters Theses

Large rivers are highly important systems; being exploited both commercially and recreationally. Because of this usage by humans, close monitoring of the ecology of theses rivers is of the utmost importance. The Long-Term Electrofishing project (LTEF) monitors the fish communities of the Illinois, Mississippi, Wabash, and Ohio rivers using day time, pulsed-DC electrofishing during the late Spring through the early Fall each year. Given that previous studies have noted diel and seasonal changes in catch and composition of fish communities, the addition of night time electrofishing may be beneficial to the overarching goals of the LTEF. This study sought to …


Demographics Of A Geographically-Isolated Population Of Threatened Salamander (Caudata: Ambystomatidae) In Central Illinois, Stephen J. Mullin, Sarabeth Klueh Jan 2009

Demographics Of A Geographically-Isolated Population Of Threatened Salamander (Caudata: Ambystomatidae) In Central Illinois, Stephen J. Mullin, Sarabeth Klueh

Faculty Research & Creative Activity

Amphibian populations that use small isolated wetlands are often small in size, susceptible to stochastic extinction processes, and have little to no contact with other populations. One can ascertain the persistence of such populations only by obtaining data that allow the prediction of future changes in population’s size, and propensity to achieve a sustainable number of individuals. The number of metamorphosing larvae leaving a pond predicts the viability of a salamander population, and thus, the number recruited into the terrestrial adult population. The Jefferson Salamander, Ambystoma jeffersonianum, is a listed threatened species in Illinois, occurring at fewer than 15 ponds …