Abstract

The effect of Changed temperature and carbon dioxide (CO 2 ) variations on LDH (Lactate de Hydrogenase), MDH (Malate de Hydrogenase) & GST (Glutathione-S-Transferase) enzymes of muscles and MDH & GST Enzymes of liver of Tambaqui fish ( Collosoma macropomum, Cuvier, 1818) were studied in the Laboratory of Ecophysiology and Molecular Evolution (LEEM) of the National Institute for Amazonian Research (INPA). The initiative involves exposing fish to a temperature rise from 28C to 32C and a CO 2 concentration up to 10 times higher than today for 24, 48, 72 and 96 hours. The level of LDH, GST and MDH in both the tissues of Tambaqui (Muscles & Liver) showed a significant decreased at different exposure period. The level of Glucose in blood showed decreased and the values of Hb, Ht, RBC, VCM, HCM & CHCM showed increased at that exposure.

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