Heart Rate Measurement in Mollusks

Heart rate (HR) has been proven to be an informative indicator of metabolism in mollusks. Extensive studies showed that the HR determination of mollusks under different environmental conditions can help to investigate the mechanisms how these species physiologically respond to the environmental stresses and to understand the ecological impacts of environment stresses. Recently, infrared radiation sensors have been widely used for heart rate measurement. Along with the development of related techniques, the applications of HR measurement of mollusks have been introduced in many fields, including ecology, aquaculture, and ecotoxicology. In this chapter, we briefly introduce the method of HR measurement in mollusks using infrared radiation sensors.