Myocardial force generation following crude oil in juvenile red drum fish (Sciaenops ocellatus)

Force generation of red drum fish ventricular muscle were measured by attaching ventricular strips to a force transducer. Ventricular force measurements are investigated in non-oil exposed and oil exposed animals during five graded hypoxia steps from 7.0 to 1.5 mg L-1 O2. Following graded hypoxia, a force-frequency relationship was determined in 0.2 hertz Hz increments beginning at 0.2 hertz and ending with 1.6 hertz during normoxic conditions.
The force transducer was connected to a Powerlab data acquisition hardware connected to a Macintosh running Labchart v8.1.4 data acquisition software. All Labchart files are converted to .txt files. Water quality spreadsheets have been converted to .csv files.

通过将红鼓鱼心室肌条固定于张力换能器（force transducer），测定其心肌收缩力的生成情况。本研究针对未暴露与暴露于石油的红鼓鱼个体，在从7.0 mg·L⁻¹到1.5 mg·L⁻¹的五级渐次低氧条件下开展心室肌收缩力测定实验。在渐次低氧处理结束后，于常氧条件下以0.2 Hz为步进增量，从0.2 Hz至1.6 Hz逐步测试，以确定其肌力-频率关系。
张力换能器连接至Powerlab数据采集硬件，该硬件搭载于运行Labchart v8.1.4数据采集软件的Macintosh计算机。所有Labchart格式文件均转换为.txt文本文件，水质电子数据表已转换为.csv文件。