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Aquatic animals generally conduct gas exchange in water by extracting dissolved oxygen via specialised respiratory organs called gills, through the skin or across enteral mucosae, although some are evolved from terrestrial ancestors that re-adapted to aquatic environments (e.g. marine reptiles and marine mammals), in which case they actually ...
This list includes animals which either live entirely marine lives, or which spend critical parts of their lives at sea. The geographical range is south of Perth, Western Australia and the border of New South Wales and Queensland , including the whole of the coasts of South Australia and Tasmania and their offshore islands.
Pelagic marine systems regulate the global climate, contribute to the water cycle, maintain biodiversity, provide food and energy resources, and create opportunities for recreation and tourism. [48] Economically, marine systems support billions of dollars worth of capture fisheries, aquaculture, offshore oil and gas, and trade and shipping.
Following is a list of marine reptiles, reptiles which are adapted to life in marine or brackish environments. This list is incomplete ; you can help by adding missing items . ( August 2008 )
Aquatic animals (8 C, 15 P) B. Brackish water organisms (1 C, ... Pages in category "Aquatic organisms" The following 6 pages are in this category, out of 6 total.
Many animals feed on kelp and kelp provides sheltered habitats for yet others. Sea grass is the only type of flowering plant that grows in British seas, but it nonetheless forms vast beds. Invertebrates in coastal Britain are very diverse and include brittle stars , hermit crabs , mussels , prawns , sponges , sea anemones and sea squirts .
Marine mammals are aquatic mammals that rely on the ocean for their existence. They include animals such as sea lions, whales, dugongs, sea otters and polar bears. Like other aquatic mammals, they do not represent a biological grouping. [26] The humpback whale is a fully aquatic marine mammal.
Pages in category "Aquatic animals" The following 15 pages are in this category, out of 15 total. This list may not reflect recent changes. ...