Currents in estuaries, Biology

Currents in Estuaries

Currents in estuaries are caused primarily by tidal action and river flow. Currents are generally confined to channels but velocities up to several knots can occur. The highest velocities occur in the middle whereas in the bottom and side bank the velocity is lowest. The erosion and deposition in the estuaries are due to currents which is a natural cycle.

However, in estuaries deposition exceeds erosion so there is a net accumulation of silt. During dry part of the year water movement is severely reduced leading to stagnation, reduced oxygen content, formation of algal blooms and incidence of fish kills.

Posted Date: 1/19/2013 6:35:23 AM | Location : United States

Related Discussions:- Currents in estuaries, Assignment Help, Ask Question on Currents in estuaries, Get Answer, Expert's Help, Currents in estuaries Discussions

Write discussion on Currents in estuaries
Your posts are moderated
Related Questions
Goals of Computerization in Nursing Practice Improved Efficiency: Computers can rapidly process, store, and retrieve information, helping the nurse clinician in nursing

Explain the Mortality and Survivorship Curves? Mortality : Just as a population has a birth rate, so does it have a death rate. A populations rate of death, or the number of

Syphilis and HIV Most clinicians treat HIV-infected patients with syphilis and normal CSF with standard penicillin doses for the stage of syphilis, but some patients may need

GENERA L MECHANISM OF BLOOD COAGULATION - All researchers agree that blood clotting is a cascade mechanism and involves three essential steps - (a) Formation of prothrombin ac

Explain the Ebb or Shock Period - Dietary Management for Burns? During the initial bums after injury, the focus is on counteracting the stress induced neurohormonal and physiol

The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.

In an adult male, which of the following is true? A. The plasma membranes of Leydig cells contain LH receptors. B. The plasma membranes of Sertoli cells contain FSH receptor

Q. Planning of diabetes counselling? You have helped the client to find out various solutions to a problem and understand the coping skills, ensured support from the family  su

Q. One characteristic of the DNA molecule is its replication capability. What are the consequences of failures during the DNA replication? Ideally the DNA molecule should replicate

Illustrate oil-bearing materials Oil contents for vegetable oil-bearing materials vary between 18% and 68% of the total weight of the seed, nut, kernel or fruit as indicated i