Please answer the following in two sentences:How does thermal pollution affects fish population and why do the open oceans not support large ecosystems and large numbers of fish.

Expert Answers
marbar57 eNotes educator| Certified Educator

Thermal pollution affects the fish population negatively by warming ocean waters to temperatures that the fish can't survive in.  Because the fish have to live in waters that are just the right temperature for them, they and large ecosystems aren't found in the colder open water of the oceans.