What do the terms algal bloom & red tides signify?

Asked by Last Modified  

1 Answer

Learn Biology +1 Class XI-XII Tuition (PUC)

Follow 1
Answer

Please enter your answer

Nio Schools

Training Centre

An algal bloom or marine bloom or water bloom is a rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments. Algal bloom concentrations may reach millions of cells per milliliter. Colors observed are green, yellowish-brown,...
read more
An algal bloom or marine bloom or water bloom is a rapid increase in the population of algae in an aquatic system. Algal blooms may occur in freshwater as well as marine environments. Algal bloom concentrations may reach millions of cells per milliliter. Colors observed are green, yellowish-brown, or red. Bright green blooms may also occur. These are a result of blue-green algae, which are actually bacteria (cyanobacteria). Some algal blooms are the result of an excess of nutrients (particularly phosphorus and nitrogen) into waters and higher concentrations of these nutrients in water cause increased growth of algae and green plants. As more algae and plants grow, others die. This dead organic matter becomes food for bacteria that decompose it. With more food available, the bacteria increase in number and use up the dissolved oxygen in the water. When the dissolved oxygen content decreases, many fish and aquatic insects cannot survive. This results in a dead area. Red tides are conditions when a dinoflagellate population increases to huge numbers. This â??bloomâ?? may be caused by nutrient and hydrographic conditions, although the environmental conditions which result in red tides are not completely understood. The water is discolored red or brown due to the presence of dinoflagellate cells numbering up to 20 million cells per liter. Red tides are composed primarily of one species of dinoflagellate which has been rapidly growing. read less
Comments
Dislike Bookmark

Related Questions

Discuss the salient features of viruses.
(a) They are smaller than bacteria. (b) They can be filterable. (c) May cause infection and diseases like small pox, flu etc. (d) Able to reproduce in host cells. (e) Use enzymes and metabolic machinery...
Jitendra
0 0
6
Distinguish between diploblastic & triploblastic animals.
Diploblastic; body derived from two cell layer (endoderm&ectoderm)and triploblastic ;body derived from complete three embryonic cell layers i,e. Ectoderm,mesoderm,endoderm.
Ashish
0 0
9

I'm NEET qualified and thinking about giving Biology tution for board and medical entrance exam preparation.

Tell me what you think about my decision? 
Its good that you are thinking to teach, but i think its time for you to study now and built your carrer, along with studies if you have spare time you can engage classes for 1 or 2 hrs a day. In this...
Priyanka Sharma

What is plasmolysis and deplasmolysis?
Plasmolysis is the process of water leaving plant cells, allowing the cytoplasm and plasma membrane to shrink away from the cell wall. This causes plants to wilt. Indeplasmolysis, water from the outside...
Bhawana
1 0
9

What is biology in india ?
Biology is a natural science discipline that studies living things it is a very large and broad field due to the wide variety of life found on earth so individual biologist normally focus on specific field...
En

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Cell membrane
One of the most impressive structures to be studied. Given by Singer & Nicholson, a membrane is double lipid layer where lipids are present almost running parallel in the cell circumference. In...

Madhukar Dutt Tripathi

0 0
0
Golgi complex 03

Mohit Kumar

0 0
0
Lysosome 01

Mohit Kumar

0 0
0
What is a Polymerase Chain Reaction (PCR)?
It is a revolutionary method developed by Kary Mullis in the 1980s, used to synthesize a new strand of DNA complementary to the offered template strand. Components of PCR: 1. DNA template- the DNA strand...

Alka S.

1 0
0
Fluid mosaic model Basic features

Mohit Kumar

0 0
0

Recommended Articles

How To Choose The Right School For Children?

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

5 Engaging Activities For Children To Get...

Learning for every child starts from a very young age. While the formal methods include school curriculums and private lessons, the informal methods include dancing, music, drawing, and various fun-filling activities. Playing games and practising these types of activities helps the children get out of boredom and...

Read full article >

6 Exam Hall Tips To Follow, For Every Good Student

Appearing for exams could be stressful for students. Even though they might have prepared well, they could suffer from anxiety, tension etc. These are not good for their health and mind. However, following a few exam preparation tips can save them from all these and help them to score good marks. Let’s find out all...

Read full article >

The Rising Problems in Indian Government School

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

Find Class 11 Tuition near you
Class 11 Tuition in Delhi
Class 11 Tuition in Bangalore
Class 11 Tuition in Hyderabad
Class 11 Tuition in Kolkata
Class 11 Tuition in Mumbai
Class 11 Tuition in Chennai
Class 11 Tuition in Pune
Class 11 Tuition in Gurgaon
Class 11 Tuition in Noida
Class 11 Tuition in Ghaziabad

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you