Submerged stage - hydrarch, Biology

Submerged Stage - Hydrarch

This habitat which is now shallower and is richer in nutrients and where light is available up to a certain depth, becomes suitable for the growth of rooted, submerged hydrophytes like Myriophyllum, Elodea, Hydrilla, Potamogeton Vallisneria, Utricularia and Ceratophyllum. These grow at various depths, mostly rooted in the muddy or sandy bottom depending on the species, and also on the clearness or turbidity of water.

Year after year, this vegetation expands and covers large areas, and brings about marked changes in the habitat. Materials eroded by streams, rainwater or surface runoff are brought to the pond, and some of it are deposited on the plants because they form a direct obstacle in its advance, and especially because they slow down the currents, when the plants and the associated animals die, they sink to the bottom, where because of the insufficient oxidation, this organic matter is partially decomposed. Thus humus is formed which cements the mucky soil together making it firmer. The result of these reactions is the building up of substratum and shallowing of lake. Obviously, this process is disadvantageous to the present occupants and these are eventually replaced by another type of plants, which are of floating type.

Posted Date: 1/21/2013 12:05:00 AM | Location : United States







Related Discussions:- Submerged stage - hydrarch, Assignment Help, Ask Question on Submerged stage - hydrarch, Get Answer, Expert's Help, Submerged stage - hydrarch Discussions

Write discussion on Submerged stage - hydrarch
Your posts are moderated
Related Questions
Q. Relevance of food packaging? To understand the relevance of food packaging, it is necessary for us to understand how spoilage reduces the availability of food. In the deve

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

How does the production of acorns by oak trees affect Lyme disease in humans?  When more acorns are produced by oak trees the populations of mice and deer that eat acorns enhan

PGA as the first CO2 fixation product was discovered in photosynthesis of: 1. Bryophyte 2. Gymnosperm 3. Angiosperm 4. Alga Alga

Determine the Exercises require to do diabetic patient Exercises are any bodily activity that enhances or maintain physical fitness and overall health. It is performed for stre

Explain the senses taste and smell ? The pigmented cone cells of the retina transmit information to bipolar nerve cells, then to ganglion cells, and on to the optic nerve and t


Explain Identifying features of Rhizopus? Macroscopically Rhizopus appears as a white cottony mass (look at rhizopus growth on media above) growing rapidly and spread over enti

What do you mean by Zoological Nomenclature? This trust is housed in the British Museum, London and is responsible for some of the most important literature in Zoological Nomen

Nurse's Role During Phototherapy You should take care of following while nursing the baby in receiving phototherapy. Check the lights of phototherapy unit before use and