Question

Match the List I with List II 

Choose the correct answer from the options given below: 
 

• A. A-I, B-II, C-IV, D-III
• B. A-III, B-IV, C-I, D-II
• C. A-IV, B-II, C-I, D-III
• D. A-I, B-II, C-III, D-IV

Hint:

Aquatic Disease Matches:
Yellowhead virus = Tiger shrimp
Myxosoma cerebralis = Trouts (Whirling disease)
Whitetail disease = Scampi (M. rosenbergii)
EUS (Aphanomyces) = Murrels.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Aquatic pathogens and their host disease associations across finfish and shellfish species.

Step 2: Detailed Explanation:
Matching pathogens/diseases in List I with susceptible host species in List II:
- A. Yellowhead Virus (YHV): A major lethal nidoviral pathogen of III. Tiger shrimp (Penaeus monodon).
- B. Myxosoma cerebralis (Myxobolus cerebralis): The myxozoan causing Whirling Disease in IV. Trouts (rainbow trout salmonids).
- C. Whitetail Disease (WTD): Caused by Macrobrachium rosenbergii nodavirus ($Mr\text{NV}$) infecting I. Scampi post-larvae.
- D. Epizootic Ulcerative Syndrome (EUS): Invasive necrotizing fungal infection caused by Aphanomyces invadans, with extreme susceptibility in II. Murrels (Snakeheads Channa spp.).
Matching sequence: A-III, B-IV, C-I, D-II.

Step 3: Final Answer:
Hence, the correct matching is A-III, B-IV, C-I, D-II, matching option (B).