Bay scallop OA challenge

Resistance to coastal acidification has a basis in cell physiology that is influenced by both "historical" conditions experienced by the population and those in which the individual organism develops. We experimentally produced adult northern bay scallops, Argopecten irradians, with three pCO2 lineages: one with two generations in moderate pCO2, one with two generations in low pCO2, and a third consisting of low-pCO2 scallops raised for one generation under high pCO2. Adults were exposed to conditions that matched and differed from their respective OA histories to elucidate signatures of habituation from cytological and molecular traits.