Quantifying Diel Change in the Metabolic Rate of the Clearnose Skate (Rostroraja eglanteria)

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Author(s)Trinity Clifford
Date Accessioned2025-07-29T21:06:48Z
Date Available2025-07-29T21:06:48Z
Publication Date2025-05
AbstractIn this study, we measured the routine metabolic rate (RMR) for the Clearnose Skate (Rostroraja eglanteria) throughout the diel cycle to understand activity levels. Intermittent flow respirometry measured oxygen consumption of skates, a proxy for metabolic rate, during the day and night. Subtracting the day and night RMR’s, two skates saw higher RMR’s during the day phase (Skate 1 - average difference of 63 mg O2/hr/kg and standard deviation of 31.1 mg O2/hr/kg, Skate 3 - average difference of 21 mg O2/hr/kg and standard deviation of 37.1 mg O2/hr/kg) while one saw higher RMR’s at night (Skate 2 - average difference of -50 mg O2/hr/kg and standard deviation of 68.7 mg O2/hr/kg). There was no significant difference between phases. To observe acclimation influence, the first RMR conducted was removed from each skate. Two skates showed contradicting patterns (Skate 2 - average difference of 9.5 mg O2/hr/kg and standard deviation of 2.1 mg O2/hr/kg, Skate 3 - average difference of -11 mg O2/hr/kg and standard deviation of 4.24 mg O2/hr/kg). No significant statistical difference was found. The first trial RMR’s suggest that skates were stressed when introduced to the system, thus future applications should increase acclimation time and decrease animal handling.
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URLhttps://udspace.udel.edu/handle/19716/36425
Languageen_US
PublisherUniversity of Delaware
TitleQuantifying Diel Change in the Metabolic Rate of the Clearnose Skate (Rostroraja eglanteria)
TypeThesis
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