The mirrows reach or grayling zone, Biology

Assignment Help:

The mirrows reach or grayling zone

This zone has a less steep gradient, than the trout beck. The river here still flows swiftly, though the current is not fast and conditions are not torrential. Erosion is thus comparatively less. Some silt may be deposited in the quieter-flowing areas. In areas with moderate currents filamentous algae may grow in summers. Other plants can gain a foothold where silt is deposited with further silt accumulating among their roots.

The presence of these quiet areas with water plants is characteristic of this stretch. The water is still well oxygenated though its temperature is more variable. Areas of fast flowing water or riffles now alternate more regularly with long pools. Fish characteristic of this zone are mirrow and in some regions grayling. The fish of the trout beck zone are also found here and so is the eel and in some rivers young offspring of salmon.


Related Discussions:- The mirrows reach or grayling zone

What is gastritis, Q. What is Gastritis? Gastritis is an inflammatory l...

Q. What is Gastritis? Gastritis is an inflammatory lesion of the gastric mucosa, (the inner lining of the stomach). The problem is seen in two forms: a) Acute gastritis

Types of quantitative analyses in nutritional biochemistry, Define Types of...

Define Types of Quantitative Analyses in Nutritional Biochemistry? Methods of quantitative analysis broadly there are two types of quantitative analyses: (a) Gravimetric,

What is triacylglycerols, A triglyceride TG, TAG, triacylglycerol or triacy...

A triglyceride TG, TAG, triacylglycerol or triacylglyceride is an ester derivative from glycerol and three fatty acids. There are various triglycerides: depending on the oil source

Fundamental cardiac unit, The fundamental contractile unit is the sarcomere...

The fundamental contractile unit is the sarcomere. Each muscle cell apart from the nucleus, mitochondria and other structures contains parallel fibrils. Sarcomere is a subunit of t

Electrophoresis gel to load 60, Assume your tilapia fish muscle homogenate ...

Assume your tilapia fish muscle homogenate has a protein concentration of 5769 ?g/ml. You take 32.5 ?l of this fish homogenate, mix it with 12.5 ?l sample buffer and 5 ?l reducing

Calcium channel blockers, Calcium antagonists are not recommended for the t...

Calcium antagonists are not recommended for the treatment of CHF because of their negative inotropic effects. However, second-generation dihydropyridine-type calcium antagonists su

What is sympatric isolation, A few individuals from a herd of deer are forc...

A few individuals from a herd of deer are forced to migrate to a new herd. This is an example of  resulting in.   a.  Gene flow; enhance in similarities between populations.

Cellular features of the beings of the plant kingdom, Q. What are the major...

Q. What are the major cellular features of the beings of the plant kingdom? The typical plant cells are eukaryotic (have nucleus), photosynthetic (use light to make food) and a

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