Adaptive divergence of seasonal heart plasticity between Canadian and Spanish pumpkinseed sunfish populations
S. M. Procopio,
B. M. Studden,
C. J. Axelrod
et al.
Abstract:Laboratory experiments suggest that reversible changes in the heart ventricle phenotype of fish accompany acclimation to temperature change to maintain cardiac function, but related work in fish living in natural conditions is scant. We investigated seasonal variation in heart ventricular mass and collagen content in pumpkinseed sunfish (Lepomis gibbosus) living in outdoor ponds where they experienced high seasonality conditions. Additionally, we compared populations adapted to high and low seasonality to eval… Show more
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