Plants - slow moving waters, Biology

Assignment Help:

Plants - Slow Moving Waters

Plant life is abundant in this habitat and includes rooted vascular plants such as pond weeds and grasses, firmly attached aquatic mosses and multicellular filamentous algae. Minute floating plants such as duck weeds may cover most of the surface of the slow moving streams especially in the slowest backwaters. Motile algae, such as diatoms and flagaellates may abound in the open water.

As plants are more in this habitat the productivity is comparatively higher hi than that of the rapid waters and so the community here is relatively less dependent on nutrients from outside.

While in the fast-water streams the main controlling factor is the current, in the slow-water streams the main limiting factor is the concentration of dissolved oxygen. In this ecosystem a large quantity of oxygen can be withdrawn by the high level of animal activity coupled with active detritus food chain. In addition, the low level of turbulence means that less oxygen is incorporated into the water at the surface. Thus, the concentration of dissolved oxygen in a slow moving stream can be substantially less than saturation and so the community must be much more tolerant of low oxygen conditions as a result. For example the salmon and trout occurring in fast water need high oxygen levels while the most common fishes of slow water are often low oxygen concentration tolerant species such as carp and catfish.


Related Discussions:- Plants - slow moving waters

Define procedure for determination of fungal and yeast count, Define Proced...

Define Procedure for Determination of Fungal and Yeast Count? Now carry out the exercise following the steps enumerated herewith: 1. Shake the food sample and aseptically tr

Cell biology, is the study of internal structure of cell included in cell b...

is the study of internal structure of cell included in cell biology or anatomy?

What are the organs that are part of the male genital system, Q. What are t...

Q. What are the organs that are part of the male genital system? The organs that comprise the male genital system are the testicles, the vas deferens, the seminal vesicles, the

Biology, excretory organs of different animals from protozoa to mammals

excretory organs of different animals from protozoa to mammals

Name the three main arthropod classes, How are the three main arthropod cla...

How are the three main arthropod classes characterized according to the body division? In crustaceans and arachnids the head is fused with the thorax forming the cephalothorax.

Emulsion preparation, Em u l sio n preparation Frozen deboned meat,...

Em u l sio n preparation Frozen deboned meat, fat and by-products are tempered at 0° to 4° C for 12to 15 hr and cut into pieces and coarse minced by passing through 8, 10 o

Determine the estimation of minerals in foods, Estimation of minerals in fo...

Estimation of minerals in foods The minerals in foods are determined by ashing or incineration at temperatures in the region of 500°C following standard procedure. This destroy

3x samples collected in process validation, To get the idea on the process ...

To get the idea on the process capability that whether the intended process provides the consistent results or not(precision).

Zoology, find the habits and habitats of scyphas?

find the habits and habitats of scyphas?

Phylum protozoa, what arr the economic importance of phylum protozoa

what arr the economic importance of phylum protozoa

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