Fisheries level-2; semester-2 FMG-205 [ Aquatic Environmental Science] Quesion 2014-2018

 

 


 

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 Fisheries level-2; semester-2 FMG-205 [ Aquatic Environmental Science] Quesion 2014-2018

 

 

 Hajee Mohammad Danesh Science and Technology University, Dinajpur B.Sc. Fisheries (Hons.) Level 2 Semester II (July-December) Final Examination 2014 Course Title: Aquatic Environmental Science

Course Code: FMG 205

Credit Hours: 2.0

Full Marks: 60

Time: 2 Hours

Split answering of any question is unacceptable

Use separate answer script for answering each of the sections

The figures in the right margin indicate the marks for respective questions

Give the diagram where necessary

Section A Answer any 3

3×10-30

1.

a) Define aquatic environmental science.

b) Write the chemical and physical properties of H₂O

e) Discuss, how is aquatic environment degrading day by day?

3.0

2. a) Define following terms-i) Science li) Environment iii) Fisheries environment. b) Interpret impacts of environment on fisheries management. c) Mention the principle components of inland fisheries management.

2.0

2.0

3.

a) What are the criteria of heavy metals? b) Draw a table showing tolerable concentration of few heavy metals.

c) Discuss the effects of As, Cd and Zn on aquatic organisms and human health.

2.0

4.

a) Describe the ecological effects of eutrophication. b) Write a short note on industrial pollution in Bangladesh.

Section B Answer any 3

3×10-30

2.5

1.

a) Define algae with its facts. b) Describe ASP, NSP and PSP.

c) What is Pfieneria?

6.0

15

2.

a) What are meant by Acute and Chronic Toxicity? b) Mention the principles of toxicity test.

e) Name the factors influence toxicity and explain any of 6 among them.

2.0

2.0

6.0

3. a) Define pollution.

b) Discuss the types pollution in water.

c) How can we be safe from heavy metals pollution? d) Mention the effects of agricultural insecticides and pesticides..

1.0

4.0

3.0

2.0

4. a) Write note on Salmon poisoning disease.

b) Describe the effects of ocean pollution.

c) Name the sources of high nutrient runoff.

4.0

4.0

2.0