With regards to the ocean, organisms that live on its surface area termed neuston. Examples are the golden seaweed, barnacles and marine snails. They act often as producers and primary consumers in the marine food chain.

Cook, C.D.K. (ed). 1974. Water Plants of the World. Dr W Junk Publishers, The Hague. ISBN 90-6193-024-3. Humans are living organisms. So is the dog living outside our house and plants providing us shade are living organisms. All of them have some special characteristics. But some of the characteristics are, in general, common to all living organisms. Open sea: habitats with greater depth than the previous case, therefore with less incidence of light and colder. These habitats enable the development of herbivorous and omnivorous biodiversity. Aquatic reptiles: they are characterized by the pulmonary respiratory system. Unlike fish, they must surface to breathe. Among them we can mention sea and fresh water turtles and snakes, also marine and fresh water, as well as crocodiles, which are also fresh and salt water. Different habitats all around the world that are made up of water combine to form the aquatic biosphere.

Types of aquatic habitats

Aquatic habitats are the refuge of a great diversity of living beings. However, due to the difficulties it represents, life under water has not been as studied as life on land. Certainly, studying and characterizing the variety of aquatic habitats and ecosystems that exist will allow us to better understand aquatic life.

Chapman, J.L.; Reiss, M.J. (10 December 1998). Ecology. Cambridge University Press. ISBN 0-521-58802-2. Silliman, B. R., Grosholz, E. D., and Bertness, M. D. (eds.) (2009). Human Impacts on Salt Marshes: A Global Perspective. Berkeley, CA: University of California Press. There are many species of emergent plants, among them, the reed ( Phragmites), Cyperus papyrus, Typha species, flowering rush and wild rice species. Some species, such as purple loosestrife, may grow in water as emergent plants but they are capable of flourishing in fens or simply in damp ground. [27] Submerged [ edit ] Ponds and lakes are both stationary bodies of freshwater, with ponds being smaller than lakes. The types of life present vary within lakes and ponds. In the shallow, sunny waters there is an abundance of life, such as various species of fish. In the deep, dark waters, however, decomposers thrive.This includes habitats within bodies of water that are remote from seas or oceans, such as rivers, lakes, ponds, and more. Depending on the speed of the water flow and the amount of suspended sediment, the water can be more or less cloudy. Precisely the turbidity and also the depth, determine the clarity and luminosity of the habitat. Examples of aquatic habitat a b Krause-Jensen, Dorte; Sand-Jensen, Kaj (May 1998). "Light attenuation and photosynthesis of aquatic plant communities". Limnology and Oceanography. 43 (3): 396–407. Bibcode: 1998LimOc..43..396K. doi: 10.4319/lo.1998.43.3.0396. ISSN 0024-3590. S2CID 85700950. Aquatic habitat is the largest habitat on earth. The bodies of water comprising this habitat are quite numerous. They include the ocean, sea, river, lake, pond, bay, wetland, lagoon, marshes, bug, swamps and so on. However, these aquatic habitats can be generally categorized into three. They are: The introduction of non-native aquatic plants has resulted in numerous examples across the world of such plants becoming invasive and frequently dominating the environments into which they have been introduced. [39] Such species include Water hyacinth which is invasive in many tropical and sub-tropical locations including much of the southern US, many Asian countries and Australia. New Zealand stonecrop is a highly invasive plant in temperate climates spreading from a marginal plant to encompassing the whole body of many ponds to the almost total exclusion of other plants and wildlife [40]