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  • Title: Thermal tolerance and standard metabolic rate of juvenile European sea bass (Dicentrarchus labrax, Linnaeus, 1758) acclimated to four temperatures.
    Author: Kır M, Demirci Ö.
    Journal: J Therm Biol; 2018 Dec; 78():209-213. PubMed ID: 30509637.
    Abstract:
    In the current study, we report the thermal tolerance, standard metabolic rate (SMR) and preferred temperature of juvenile European sea bass (Dicentrarchus labrax) (1.2 ± 0.4 g) acclimated at 15, 20, 25 and 30 °C for 30 days. Dynamic and static thermal tolerance zones of juvenile European sea bass are 861 °C2 and 613 °C2, respectively. The European sea bass is a fish species with low thermal resistance, with a resistance zone area of 162.5 °C2. The SMR of the fish species at the above acclimation temperatures are 184, 255, 382 and 459 mg O2 h-1 kg-1, respectively and are significantly different (P < 0.001, n = 10). The fact that SMR increases with rising temperatures and gradually decreases after 25 °C indicates that the preferred temperature ranges of juvenile European sea bass are between 25 and 30 °C. Our study shows that European sea bass has a low acclimatization capacity to survive in aquatic systems characterized by wide temperature fluctuations.
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