How do humans effect coral reefs?
We shouldnt destroy reefs. Some people dont even realize what they are doing. Others dont care. Overfishing in coral reef areas can do plenty of damage. It may sound surprising if your not a fisherman. Humans (especially fisherman) use spear guns, which can damage the coral. Or they might use commercial poisons. Sometimes, even dynamite. Besides what fisherman use, the actual overfishing can damage too. How? It can damage food chains around and in the coral reefs. Well, sea urchins, little spiky animals, can overwhelm the coral reef. Humans fish for the predators of sea urchins, such as porcupine fish, a lot! So much, that the predators of the sea urchins are very rare in those areas. The point is that sea urchins can ruin the coral reefs. Sea urchins eat kill reefs. Used-to-be-reefs become so covered with algae that animals cannot build new colonies for them to live in. The top concern for the coral reefs is the condition and quality of the water that the coral is growing in. When hum
