Changes in heart rate and circadian cardiac rhythm as physiological biomarkers for estimation of functional state of crayfish <Emphasis Type="Italic">Pontastacus leptodactylus</Emphasis> Esch. upon acidification of the environment |
| |
Authors: | G P Udalova S V Kholodkevich V P Fedotov E L Kornienko |
| |
Institution: | 1.St. Petersburg Research Center of Ecological Safety,Russian Academy of Sciences,St. Petersburg,Russia |
| |
Abstract: | The changes in heart rate and circadian cardiac rhythm of crayfish Pontastacus leptodactylus Esch. kept in a lightning regime that is close to natural under optimal or low pH values were studied. The heart rate was
registered in real time using an original noninvasive fiberoptic method. Upon acidification, disorders in circadian cardiac
rhythm and organism reaction (by heart rate) in the suspension test were detected. The characteristics of cardiac activity
are considered criteria for estimating the crayfish’s functional state at normal and stress conditions caused by the changes
in the quality of the environment. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |