Features of estuaries, Biology

Assignment Help:

Features of Estuaries

The physicochemical properties of the estuaries have large variation in several parameters and this often creates stressful environment for organisms. This is the one cause that large organisms are less in number in this area than smaller organisms.

The most dominant feature of the estuarine environment is the fluctuation in salinity. Though salinity gradient exists sometime in an estuary but the pattern of gradient varies seasonally with the topography, with the tides and with the amount of fresh water.

The estuaries are dominated by muddy substrates which are often very soft. The deposition of particles is also controlled by currents and size of particle. If the strong currents prevail, the substrate will be coarse (sand) whereas where waters are calm and the currents are weak only fine silt will settle out. These particles in the estuary are of much organic origin derived from both the terrestrial and marine movements. As a result, the accumulated substrate is very rich.


Related Discussions:- Features of estuaries

Define traditional cycle of root canal treatment, Define Traditional Cycle ...

Define Traditional Cycle of Root Canal Treatment The traditional cycle of Root Canal Treatment a) Dig in the tooth to make a big hole b) Then, look through this hole to f

Why protein requirements of athletes get increased, Why Protein requirement...

Why Protein requirements of athletes get increased? Protein requirements of athletes, particularly those engaged in strength and power events, may be increased above those of s

Which is the typical feature of the hookworms, Which is the typical feature...

Which is the typical feature of the hookworms related to the way they obtain food and explore the host? Both Ancylostoma duodenale and Necator americanus have mouthparts with h

What is non specific defence, What is Non specific defence Non specifi...

What is Non specific defence Non specifi c:  These relate to  the  physical barriers  like  skin  and mucous membrane. They form the first line of defence against entry of mic

Male reproductive disorders-congenital impotentia genarandi, Congenital imp...

Congenital impotentia genarandi Some bulls which are otherwise normal and healthy produce semen containing spermatozoa with specific morphological abnormalities together with

What is peaked t-waves, Q. What is Peaked T-Waves? Exercise induced inc...

Q. What is Peaked T-Waves? Exercise induced increase in T-wave amplitude in V2 is quite predictive of anterior wall ischaemia (specificity = 95 percent). It appears that this m

Symptoms and signs of diabetes mellitus, Symptoms refer to the problems exp...

Symptoms refer to the problems expressed by the patients. Signs are obtained by a health professional from the patients by interacting with him, by conducting tests, etc. The sympt

What changes is most likely to occur, A 42 year old woman decides to lose w...

A 42 year old woman decides to lose weight on a diet prescribed by an anorexic friend. She loses about 30 pounds in 45 days, but her serum potassium level falls to 2.1 mmol/L (norm

Are hormones only proteins, Q. Are hormones only proteins? Some hormone...

Q. Are hormones only proteins? Some hormones are proteins, like glucagon, insulin and ADH others are derived from proteins (modified amino acids) like noradrenaline and adrenal

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd