•Triops heartbeat can be difficult to
study
–Heartbeat
rate very sensitive to O2 level
–Small
size of larval stage makes study difficult
–Triops
larvae are extremely
fragile
–Heartbeat
rate is modified by pressure
–Beat
rates can exceed 600 BPM
–Heart
usually removed from body of adults
•Research
Goal
–Develop
a method to accurately measure the heartbeat rate of live Triops in the larval stage and
test this method
by analyzing the effects of caffeine, acetylcholine, and nicotine on the
heartbeat rate