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Thermal preference, tolerance and temperature-dependent respiration in the California sea hare <i>Aplysia californica</i>
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作者 Ana Denisse Re Fernando Díaz +6 位作者 Alfredo Salas-Garza Marco Gonzalez Victor Cordero Clara E. Galindo-Sanchez edna sanchez-castrejon Adolfo Sánchez Zamora Alexei Licea-Navarro 《Agricultural Sciences》 2013年第6期46-52,共7页
The thermoregulatory behavior of sea hare Aplysia californica was determined in a horizontal thermal gradient;with a preferred temperature (PT) of 18.3°C for the day cycle and 20.8°C for the night cycle. The... The thermoregulatory behavior of sea hare Aplysia californica was determined in a horizontal thermal gradient;with a preferred temperature (PT) of 18.3°C for the day cycle and 20.8°C for the night cycle. The displacement velocity demonstrated an initial rate of 30 cm·hˉ1 and gradually the velocity diminished to 18 cm·hˉ1 with several fluctuations mainly at 02:00 am. Critical Temperature Maxima (CTMax refers to the temperature point where at least 50% of the experimental group have a loss of attachment) was measured at three acclimation temperatures (16°C, 19°C and 22°C). At the lowest acclimation temperature (16°C), 50% of the experimental group had an attachment loss at CTMax 32.7°C, and in a higher acclimation temperature (22°C) CTMax was 36.2°C. The Oxygen Consumption Rate (OCR) was closely correlated to acclimation temperature, and at 16°C and 19°C sea hare had a relatively stable metabolic rate, with OCR increasing to 9 mg O2 hˉ1·kgˉ1 w.w. in a higher acclimation temperature. 展开更多
关键词 Thermoregulatory Behavior CTMAX Oxygen Consumption APLYSIA californica
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