Marine Biology

Waves

The waves are caused by wind. They have their maximum effect in the intertidal zones. The maximum height that is normally reached by the waves in the oceans is 17 metres. When the waves strike, the impact is very heavy and can even turn huge stones. The force of impact of the waves is roughly about 1.5 kg. per cm². Animals unless well attached will easily be dislodged from the substratum and thrown away or dashed against rocks. Wave action is also beneficial to animals. It helps in the mixing of oxygen with water. The breaking waves that cause spray, wet many animals and save them from drying. The shape of reef corals is modified by wave action.