Since the B. madurai lives in freshwater areas near boat harbors and marinas so it is possible that it developed adaptation for different oxygen concentration.
Question to test: How B.madurai adapts to oxygen concentration?
Hypothesis:B.madurai will rather survive in water with lower oxygen concentration
We propose this hypothesis, because B.madurai lives in water near boat harbors that are contaminated and oxygen depleted rather than in pristine water.
Experiment: Should include aeration devices to control oxygen levels and prove the hypothesis.