FUNCTIONAL CORRELATIONS BETWEEN CELLULAR RESPIRATION AND SANGUINE PARAMETERS IN SOME CULTURE CYPRINIDS UNDER HYPOTHERMIC CONDITIONS

Costică Misăilă, Ion Neacşu, Gabriela Dumitru, Elena Rada Misăilă

“Alexandru Ioan Cuza” University of Iaşi, Carol I Bvd., 20 A, Faculty of Biology, Laboratory of Biochemistry and Molecular Biology, România e-mail: cmisaila@uaic.ro e-mail: gabriela.dumitru@uaic.ro e-mail: rada2007misaila@yahoo.com

Abstract

The study provides information on the correlations established between cellular respiration and the hematological parameters, under the influence of prolonged starvation and hypothermy, during wintering, in three one summer-old culture cyprinids: common carp (Cyprinus carpio), silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis). The intensity of cellular respiration in both gills and muscle, as well as the hematological parameters (hemoglobin, hematocryte and the number of erythrocytes), were determined prior to and after fish wintering. The observation to be made is that, under the influence of prolonged starvation and low winter temperatures, the consumption of cellular oxygen occurs (more pronounced in common carp - especially in muscles), correlated with higher values of the sanguine parameters (more intense in common carp and lower in bighead carp), mainly for Hb, Ht and erythrocyte number, which may be interpreted as an adaptive compensating response.

Keywords

cyprinids hypothermic stress hematological indices celular respiration