Comp Biochem Physiol A Mol Integr Physiol 2022 Jun 24:111264. Epub 2022 Jun 24.
Programa de Pós-Graduação em Ecologia Aquática e Pesca, Núcleo de Ecologia Aquática e Pesca, Universidade Federal do Pará, Belém, PA, Brazil; Programa de Pós-Graduação em Oceanografia, Instituto de Geociências, Universidade Federal do Pará, Belém, PA, Brazil; Laboratório de Ecotoxicologia, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, PA, Brazil; Laboratório de Pesquisa em Monitoramento Ambiental Marinho, Instituto de Geociências, Universidade Federal do Pará, Belém, PA, Brazil. Electronic address:
Cardiac physiological studies in oysters are scarce and these kinds of responses can be key issues for understanding behavioral and baseline adaptive responses. In this study we characterized the electrocardiogram (ECG) tracing patterns, wave intervals (RR; QT), and complex duration (QRS) of Crassostrea gasar during immersion followed by air exposure, simulating what occurs in a tide cycle. Initially, the ECG was analyzed in the oysters under immersion for 30 min to evaluate the basal recordings (immersion exposure condition). Read More