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

How many different genotypes can the individual present, Considering a pair...

Considering a pair of homologous chromosomes containing a gene having two different alleles how many different genotypes can the individual present? If a gene of the diploid sp

Define hypoglycaemia, Let us now understand the definition, causes, signs a...

Let us now understand the definition, causes, signs and symptoms, diagnosis and treatment of hypoglycaemia. It is very important for you to learn about it because patient will be h

Functions of lysosomes, FUNCTIONS (1 )      Intracellular digestion -...

FUNCTIONS (1 )      Intracellular digestion - Individual cells may obtain food through phagocytosis. The same is digested with the help of lysosomes. It is of two types:-

How is the nervous system characterized, Q. How is the nervous system chara...

Q. How is the nervous system characterized in beings of the phylum Annelida? How can one compare cephalization in annelids to cephalization in platyhelminthes and nematodes? An

Structure of the sperm, Structure of the Sperm The spermatozoa in dif...

Structure of the Sperm The spermatozoa in different animal groups display a wide variety of shapes and sizes but all share a. basic morphological plan. The sperm in most anim

How can you get a replacement, The book that I rented is missing some pages...

The book that I rented is missing some pages. How can i get a replacement?

Explain asystole and pulseless electrical activity, Explain Asystole and Pu...

Explain Asystole and Pulseless Electrical Activity (PEA) The outcomes from these rhythms are generally much worse than for VT/VF, unless a readily correctable cause is identif

Patterns of metamorphosis, Patterns of Metamorphosis The pattern of me...

Patterns of Metamorphosis The pattern of metamorphosis is not the same in all insects and so metamorphosis can be broadly classified into 3 types: (1) Complete metamorphosi

Apical ectodermal ridge or aer, Apical Ectodermal Ridge (AER) We have ...

Apical Ectodermal Ridge (AER) We have described earlier that the AER persists at the tip until the last phalangeal cartilage begins differentiation. The following experiments

Determine the nutritional needs of humans, Determine the nutritional needs ...

Determine the nutritional needs of humans? In the previous unit, we saw how involvement in sport or vigorous activities can affect the body's nutrient needs. In this unit, we w

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