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Avoidance Learning And Memory In Largemouth Bass (Micropterus Salmoides) Fed Bufo Tadpoles, Randy John Gawlik
Avoidance Learning And Memory In Largemouth Bass (Micropterus Salmoides) Fed Bufo Tadpoles, Randy John Gawlik
Masters Theses
Tadpoles of the American toad (Bufo americanus) have been shown to be distasteful to largemouth bass (Micropterus salmoides) predators who learn, on the short term, to avoid them. How long bass retain this learned avoidance of Bufo larvae is unknown so an experimental design was constructed in an attempt to answer this question.
Largemouth bass were divided into four treatment groups. Two groups were initially fed exclusively larvae of Bufo americanus (one group was fed large tadpoles, the other group fed small larvae). Similarily, the other two groups were initially fed spring peeper (Hyla crucifer …
A Comparison Of The Temporal Spawning Distributions And Growth Rates Of Young-Of-The-Year Redear Sunfish (Lepomis Microlophus) And Bluegill (Lepomis Macrochirus) In Three Illinois Impoundments, Craig Douglas Schmittler
A Comparison Of The Temporal Spawning Distributions And Growth Rates Of Young-Of-The-Year Redear Sunfish (Lepomis Microlophus) And Bluegill (Lepomis Macrochirus) In Three Illinois Impoundments, Craig Douglas Schmittler
Masters Theses
The purpose of this study was to compare the temporal spawning distribution and growth rates of bluegill (Lepomis macrochirus) and redear sunfish (Lepomis microlophus) in Illinois impoundments. Otolith sagittae were used to age the fish and to determine the intervals of successful spawning for both species.
Readear sunfish initiated spawning slightly before or a the same time as bluegill; however, bluegill spawned for twice as long as redear sunfish in all study impoundments. The earliest spawned fish of both species showed the fastest growth and the earliest spawned redear sunfish grew faster than did the earliest …