https://wildtracks.wordpress.com/world-ecosystems/saltwater-ecosystem/saltwater-animal-plant-adaptations/Animal Adaptations There are 120 species of mammals including whales, dolphins, porpoises, seals and sea lions which have evolved to adapt to their aquatic environment by developing small appendages (ears…
http://www.waterencyclopedia.com/Da-En/Ecology-Marine.html Marine ecology describes the interactions of marine species with their biotic (living) and abiotic (nonliving) environments. The biotic environment includes interactions with other living organisms. The abiotic environment includes aspects of…
http://en.wikipedia.org/wiki/Aquatic_ecosystem From Wikipedia, the free encyclopedia An estuary mouth and coastal waters, part of an aquatic ecosystem An aquatic ecosystem is an ecosystem in a body of water. Communities of organisms that are dependent on each other and on their environment…