Search

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

The Acartia tonsa, a calanoid copepod species, has high survival and thermal acclimation capacity in aquatic environments characterized by temperature variations. Dynamic and static thermal polygon areas of this species are 495 °C2 and 267 °C2 for nauplii stage, while adult stage has 747 °C2 and 411 °C2 dynamic and static thermal polygon area, respectively. In addition, Acartia tonsa is a copepod species which is more resistant to both high and low lethal temperatures, with its resistance zone of 105 °C2 and 131 °C2 for nauplii and adults, respectively. Acartia tonsa nauplii acclimated to 18 °C, 23 °C and 28 °C have lover and upper thermal limit (CTMin-CTMax) of 6.82–26.15 °C, 8.65–29.49 °C, and 11.70–34.10 °C, respectively. This species in the adult stage has a CTMin-CTMax of 4.47–30.30 °C, 6.35–33.94 °C, and 9.92–35.90 °C at acclimation temperatures mentioned above. Its broad dynamic and static thermal tolerance polygon areas and, accordingly, its significant thermal limits allow Acartia tonsa to survive at warm or cold extremes in their natural environment.

The present study reports the temperature tolerance, estimated using dynamic and static methodologies, and preferred temperature range, based on oxygen consumption rate (OCR), of juvenile meagre (Argyrosomus regius) (Asso, 1801) (3.4±0.9g) after 30 days of acclimation at 18, 22, 26 and 30°C. Meagre has dynamic and static thermal tolerance zones of 551°C2 and 460°C2, respectively and is a low resistance fish species, with a resistance zone area of 87°C2. The OCR of juvenile meagre at the above acclimation temperatures was 370, 410, 618 and 642mgh-1kg-1, respectively, and is significantly different (P

Temperature variation affects the growth, maturation and distribution of fish species due to increasing constraints on physiological functions therefore, the aim of the present study is to evaluate effect of temperature on thermal tolerance and standard metabolic rate (SMR) of gilthead seabream (Sparus aurata). For this purpose, tolerable temperature ranges of juvenile gilthead seabream acclimated at 15, 20, 25, and 30 °C for 30 days were estimated using dynamic and static thermal methodologies. The SMRs of the fish were also determined based on oxygen consumption rate (OCR). The dynamic and static thermal tolerance zones of gilthead seabream were calculated as 737 °C2 and 500 °C2, respectively, with a resistance zone area of 155.5 °C2. The SMR of the fish at the above acclimation temperatures (AT) was determined as 138, 257, 510, and 797 mg O2 h-1 kg-1, respectively and were significantly different (P