The ocean ecosystems are arguably the most important ecosystem on our planet. As the oceans are responsible for the most carbon filtration of air (even more than trees). Remember, the fishing industry doesn’t just supply your salmon at a restaurant or the fish for your next sushi order. Fish by-products are found in many places, such as fish oil pills, protein concentrates, amino acids, glue, and gelatin. The ocean's ecosystem is reaping the consequences. It can also cause economic issues if there are no longer fish to harvest.