Abstract
AbstractBrown Bullhead Ameiurus nebulosus is a benthic‐oriented warmwater fish species distributed throughout the eastern United States and southeastern Canada, but widely released elsewhere. This study developed and validated a bioenergetics model for Brown Bullhead in the laboratory and then applied the model to evaluate potential changes in growth and distribution associated with climate change. The model performed very well in laboratory validations at two temperatures and two ration levels—within 4% between observed and predicted values. Modeling of a 4°C increase in water temperatures due to climate warming suggested increases in growth in the northern parts of the species’ natural range and declines or extirpation in the south. In addition to distribution shifts, the warmer temperatures could increase biometabolism of polynuclear aromatic hydrocarbons (PAHs) or bioaccumulation at local scales that may lead to changes in population structure or consumption advisories of Brown Bullhead.Received October 27, 2016; accepted February 2, 2017 Published online May 1, 2017
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