Question

three zones of stratification of pond ecosystem​

Answer 1

Explanation:

Three major zones of habitat are usually present: (1) littoral, the shallow-water zone, with light penetrating to the bottom and supporting rooted plants and bottom-dwelling animals; (2) limnetic, the water open to effective light penetration, supporting plant and animal plankton; and (3) profundal, the bottom and ...

Answer 2

Lakes and ponds (in this case, ponds) are divided into three different "zones" which are usually determined by depth and its distance from the shoreline. The zones discussed are the Littoral Zone, Limnetic Zone and Profundal Zone.

What Is A Pond?

      A pond is an area filled with water, either natural or artificial, that is smaller than a lake. It may arise naturally in floodplains as part of a river system, or be a somewhat isolated depression (such as a kettle, vernal pool, or prairie pothole). It may contain shallow water with aquatic plants and animals. Ponds are divided into three different zones: which is defined in the bottom part.

Zones

• Littoral Zone - The littoral zone consists of the area from the dry land sloping to the open water and can be very narrow or very wide. Typically oligotrophic or young ponds have narrow littoral zones due to their steep sides and eutrophic or old ponds have wide littoral zones due to their gently sloping shoreline and sides. The zone is characterized by abundant dissolved oxygen, sunlight, nutrients, generally high wave energies and water motion, and, in the intertidal subzone, alternating submergence and exposure. The geological nature of shorelines and nearshore bottoms is exceedingly varied
• Limnetic Zone - The Limnetic Zone is generally classified as the open water area of the lake or pond. This is a much larger section of water in oligotrophic or younger ponds and lakes than it is in eutrophic or older bodies of water. The limnetic zone is well-lighted (like the littoral zone) and is dominated by plankton, both phytoplankton and zooplankton. Plankton are small organisms that play a crucial role in the food chain. It is the zone most heavily responsible for oxygen production within the aquatic ecosystem. Limnetic communities are quite complex.
• Profundal Zone - The profundal zone is a deep zone of an inland body of freestanding water, such as a lake or pond, located below the range of effective light penetration. This is typically below the thermocline, the vertical zone in the water through which temperature drops rapidly. Common inhabitants of the profundal zone are leeches and other annelid worms, some species of insect larvae, and a few types of crabs and mollusks. In marine profundal zones echinoderms such as sea urchins, and crustaceans such a a few species of crabs, are also found.