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

What are worm infections, Q. What are worm infections? The Worm infecti...

Q. What are worm infections? The Worm infections are human diseases caused by nematodes(roundworms) or platyhelminthes (flatworms).

Limitations of five-kingdom classification, Limitations of Five-Kingdom Cla...

Limitations of Five-Kingdom Classification As already pointed out, each system of classification has its own limitations. The two-kingdom system has outlived its usefulness as

Planes of cleavage, Planes of Cleavage The ova of most of the animal ...

Planes of Cleavage The ova of most of the animal groups (except some specific cases like insects) are spherical or nearly spherical having their own actual centre comparable

What are the sign of horner''s syndrome, What are the sign of Horner's synd...

What are the sign of Horner's syndrome? 1. Miosis, 2. ptosis, 3. enophthalmos, 4. anhidrosis and 5. heterochrome iridis.

How does biological diversity relate to the characteristics, How does biolo...

How does biological diversity relate to the characteristics of the abiotic factors of an ecosystem? The availability of abiotic factors as light, moisture, mineral salts, heat

What else is carried in the plasma, What else is carried in the plasma? ...

What else is carried in the plasma? In addition to proteins, plasma having salts (ions), glucose, lipids and amino acids, hormones, carbon dioxide and urea

Define instrument for measurement of absorbed radiation, Define Instrument ...

Define Instrument for Measurement of Absorbed Radiation? a) Photometer: This is an instrument which it designed to measure the intensity of the beam of light and usually does s

Explain repressors , Gene repressor proteins which inhibit the trans...

Gene repressor proteins which inhibit the transcription of particular genes in eukaryotes also exist. They may act by binding either to control parts within the promoter region nea

Explain the course of events during spontaneous blinking, Explain about the...

Explain about the course of events during spontaneous blinking. Course of Events during Spontaneous Blinking: Given ate the course of events which take place in the

What is skeletal girdles? explain in brief., What is Skeletal girdles? Expl...

What is Skeletal girdles? Explain in brief. In vertebrates, bones which connect the appendages on the left and right side of appendicular skeleton to each other. Skeletal girdl

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