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The shore zone is the transitional zone between the water systems and land, similar to the riparian zone seen in running water systems. [6] This area functions in much the same way as the riparian zone, the plants protecting the water from pollution, flooding, and heat stress, while also providing nutrients and habitats for aquatic and wetland ...
There are two main sources of oxygen to the photic zone: atmospheric mixing and photosynthesis. Oxygen is dissolved when air interacts with water on the surface, and is increased with wave and wind action. [3] Unlike the profundal zone, the limnetic zone is the layer that receives sufficient sunlight, allowing for photosynthesis. [4]
The principal factor controlling the distribution of aquatic plants is the availability of water. However, other abiotic factors may also control their distribution including nutrient availability, availability of carbon dioxide and oxygen, water temperature, characteristics of the substrate, water transparency, [53] water movement, and ...
When low water levels occur, obligate rheophytes often quickly begin to flower to take advantage of these occurrences. Examples of rheophytic plants are Asplenium obtusifolium, Osmunda lancea, and Tectaria lobbii (ferns) and Gosong brevipedunculata (an aroid). [1] Aiphanes argos is a rheophytic palm. [2]
The major zones in river ecosystems are determined by the river bed's gradient or by the velocity of the current. Faster moving turbulent water typically contains greater concentrations of dissolved oxygen, which supports greater biodiversity than the slow-moving water of pools
Seagrass is both a source and a sink for oxygen in the surrounding water column and sediments. At night, the inner part of seagrass oxygen pressure is linearly related to the oxygen concentration in the water column, so low water column oxygen concentrations often result in hypoxic seagrass tissues, which can eventually kill off the seagrass.