In which aquatic environment are organisms most likely to produce bioluminescence?

Question

Quizplus · Accepted Answer

Bioluminescence is commonly found in the aphotic zones (depths where sunlight doesn't penetrate), where it is used by organisms for communication, defense, and attracting prey. Coral colonies may have some bioluminescent organisms, but not all of them produce bioluminescence. Intertidal zones and mangrove swamps receive enough sunlight and are not usually associated with bioluminescence.

In Which Aquatic Environment Are Organisms Most Likely to Produce