Abstract:

Cardiac indices including stroke volume, heart rate, cardiac output and afterload pressures were collected for young adult cobia (Rachycentron canadum) after exposure to 0 %, 10% and 20% HEWAF (high energy water accomodated fraction) crude oil. Cardiovascular performance was varied using the β-adrenoceptor agonist isoproterenol and by controlling afterload pressures. Indices were collected using transonic flow probes and pressure transducers connected to Powerlab data acquisition hardware. This was connected to a IBM computer running Labchart v7 data acquisition software. All Labchart files were converted to .txt files. Water samples from the experimental treatment groups were sent to ALS for PAH concentration analyses.

Suggested Citation:

Cox, Georgina; Grosell, Martin. 2017. Oil exposure impairs in situ cardiac function in response to B-adrenergic stimulation in Cobia. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7G15Z85

Publications:

Cox, G. K., Crossley, D. A., Stieglitz, J. D., Heuer, R. M., Benetti, D. D., & Grosell, M. (2017). Oil Exposure Impairs In Situ Cardiac Function in Response to β-Adrenergic Stimulation in Cobia (Rachycentron canadum). Environmental Science & Technology, 51(24), 14390–14396. doi:10.1021/acs.est.7b03820

Purpose:

To test if β-adrenergic stimulation can improve cardiac performance following oil exposure in fish.

Data Parameters and Units:

Channel 1: Time (seconds) Channel 2: Cardiac output (mL/min) Channel 3: In put pressure (cm H2O) Channel 4: Out put pressure (cm H2O) Channel 5: Heart rate (bpm) Channel 6: Mean cardiac output (mL/ min) Channel 7: Mean out put pressure (cm H2O) Channel 8: Total pressure (cm H2O) Channel 9: Cardiac power output (mW/ g Mv) Channel 10: Mean cardiac power output (mW/ g Mv) Channel 11: Stroke volume (mL/ beat) Channel 12: Mean stroke volume (mL/ beat) Channel 13: Temperature (degree celsius) NaN (not a number)

Individual Files: