Naturalized populations of Chinook salmon have been documented in Lake Ontario and its tributaries; however, only two US tributaries have been studied intensively. I am investigating natural reproduction of Chinook salmon in Oak Orchard and Marsh Creeks in Orleans County and Johnson Creek in Niagara County. Carcass surveys of adults in the fall, combined with DEC creel data, estimated adult returns for both wild and stocked populations. Additionally, run timing, average length, sex ratios, pre-spawn mortality, spawning ground preferences, redd locations, and in stream migration distances were recorded. Spring surveys provided data on the abundance of juvenile wild fish and timing of outmigration. Combining the fish and habitat data collected may provide insight regarding the influences of stocking and habitat availability on natural reproduction within these tributaries.
|Presenter:||Matthew Piche (Suny Brockport) -- firstname.lastname@example.org
|Topic:||Environmental Science - Panel|
|Time:||11:10 am (Session II)|