Volta

Neighboring Gulf Killifish ( Fundulus grandis ) Populations Differ in Their Plastic and Genetic Responses to Salinity Fluctuations

ABSTRACT Coastal development is increasing rapidly, intensifying the frequency and magnitude of watershed runoff and salinity fluctuations in estuarine ecosystems. In developed areas, impervious surfaces can accelerate freshwater runoff during rains, producing rapid and extreme osmotic shifts that challenge coastal organisms. Along the northern Gulf of Mexico (GoM), the Gulf killifish ( Fundulus grandis ) is a species that is consistently present in reference and urbanized tidal creeks. To evaluate responses to osmotic fluctuations, we conducted a laboratory‐based reciprocal transplant experiment using individuals from a reference watershed (Long Bayou, AL) and an urbanized watershed (Weakley Bayou, FL) along the northern GoM. Individuals from each population were exposed to either a simulated tidal event (low fluctuation; 15–10 ppt) or a tide/runoff …

Reference & gravity metrics

Secondary-market trade history

References (0)

Cited by (1)