Microbial and Parasitic Diseases of Fish and Shellfish


Mr. Avijit Biswas


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Course Name :Microbial and Parasitic Diseases of Fish and Shellfish

Code(Credit) : FSHM 2202(2-1-0)

Course Objectives:

1. To learn the fish and shellfish diseases associated with bacteria, virus, parasite and protozoan.

2. To understand the gross and clinical signs of different diseases and defense mechanisms in fish and shellfish against disease causing microorganisms.

 3. To learn the preventive and therapeutic measures of fish and shellfish diseases.

Learning Outcomes:

1. Student can able to understand different disease conditions which is associated with different microorganisms.

2. They can able to understand different etiological factor of microorganisms.

3. Student can able to identify different therapeutic and preventive measurement of fish and shellfish diseases.

Course Syllabus


General characteristics, life cycle, diagnosis, prevention and treatment of parasitic, bacterial, fungal and viral diseases of finfish and shellfish. OIE  listed diseases. Disease surveillance and reporting. Quarantine and health certification in aquaculture. Health management strategies in Aquaculture: Vaccines, Immuno-stimulants, Bioremediation, Probiotics, Crop rotation, Good and Best management practices.SPF and SPR stocks –development and application. Bio-security principles, Sanitary and phytosanitary Agreement, Disease control through environmental management. Importance of Biofilm, Biofloc, Periphyton in aquatic Health Management, Zoonotic diseases.  Principles of disease diagnosis, conventional, molecular and antibody based diagnostic methods, Rapid diagnostic methods.


1. General procedure for disease diagnosis.

2. Methods of sampling fish and shellfish for disease diagnosis.

3. Taxonomy, lifecycle and identification of fish and shellfish parasites .

4. Sampling, preparation of media and culture of pathogenic bacteria: Techniques for bacterial classification.

5. Techniques in disease diagnosis: Microbiological, haematological, Histopathological, immunological, molecular techniques and Biochemical tests.

6. Agglutination test; Challenge tests; purification of virus; Stress related study of fish and shellfish, Disease treatment.


Reference book:

     1. Fish Disease: Diagnosis and Treatment-------by Edward J. Noga

     2. Fish viruses and fish viral diseases--------by Ken Wolf

     3. Handbook on Fish Diseases & Diagnosis ------ by Shah/Balkhi

     4. Shrimp Disease Management--------- by Joseph Sinawe Lipton

Session Plan

Session 1 (Theory)

Session 2 (Theory)

Session 3 (Theory)

General characteristics, diagnosis, prevention and treatment if fungal disease in fish

PDF http://courseware.cutm.ac.in/wp-content/uploads/2020/06/C6.pdf

Video https://www.youtube.com/watch?v=0eA4UiuOs70

Session 4 (Theory)

Session 5 (Theory)

Session 6 (Theory)

Session 7 (Theory)

Parasitic Diseases in Aquaculture: Their Biology, Diagnosis and Control – Protista

PDF  http://courseware.cutm.ac.in/wp-content/uploads/2020/06/C2.pdf

Video https://www.youtube.com/watch?v=T13cIxaG4CU

Session 8 (Theory)

Session 9 (Theory)

Session 10 (Theory)

Session 11 (Theory)

Session 12 (Theory)

Session 13 (Theory)

Session 14 (Theory)

Session 15 (Theory)

Session 16 (Theory)

Session 17 (Theory)

Session 18 (Theory)

Session 19 (Theory)

Session 20 (Theory)

Session 21 (Practical)

Session 22 (Practical)

Session 23 (Practical)


PDF http://courseware.cutm.ac.in/wp-content/uploads/2020/06/P3.pdf

Video https://www.youtube.com/watch?v=iFwlnljV2Go

Session 24 (Practical)


PDF http://courseware.cutm.ac.in/wp-content/uploads/2020/06/P4.pdf

Video https://www.youtube.com/watch?v=X8OEumqaYjg

Session 25 (Practical)

Session 26 (Practical)

Session 27 (Practical)

Session 28 (Practical)

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