Aquatic Animal Health MCQs

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1. The scientific name of the common carp is:





2. The study of fish diseases is called:





3. White spot disease in shrimp is caused by:





4. Ichthyophthiriasis (Ich) in fish is caused by:





5. The causative agent of bacterial gill disease is:





6. Which is the most common method of fish anesthesia?





7. Dropsy in fish is mainly characterized by:





8. The main route of disease transmission in aquaculture is:





9. The optimum pH range for most aquaculture species is:





10. Edwardsiellosis in fish is caused by:





11. Which parasite causes “anchor worm” infection in fish?





12. Hematopoietic necrosis virus (IHNV) mainly affects:





13. The gas bladder in fish is responsible for:





14. Saprolegniasis is caused by:





15. The causative agent of vibriosis is:





16. The term “osmotic stress” in fish refers to:





17. Koi herpesvirus (KHV) primarily affects:





18. The best method for preventing aquatic animal diseases is:





19. Which of the following is a crustacean pathogen?





20. The process of gradually adjusting fish to a new water environment is called:





21. The gills in fish primarily function for:





22. What is the main symptom of Mycobacteriosis in fish?





23. A major risk factor for fungal infections in fish is:





24. The causative agent of red disease in eels is:





25. Which of the following is a viral disease of shrimp?





26. The primary nitrogenous waste excreted by fish is:





27. The term “quarantine” in aquaculture means:





28. Epizootic ulcerative syndrome (EUS) is mainly caused by:





29. What does HACCP stand for in aquatic food safety?





30. The best practice to control parasitic diseases in aquaculture is:





31. Streptococcosis in fish is caused by:





32. The swim bladder disorder in ornamental fish is mainly due to:





33. The role of probiotics in aquaculture is to:





34. “Melanomacrophage centers” in fish are indicators of:





35. Which chemical is commonly used to disinfect fish ponds?





36. Fish louse is scientifically known as:





37. The major cause of ammonia toxicity in ponds is:





38. The main purpose of aeration in fish ponds is:





39. Gill rot is mainly caused by:





40. The causative agent of “whirling disease” in salmonids is:





41. Fish health management includes:





42. A major symptom of gas bubble disease is:





43. The main purpose of fish vaccination is to:





44. Which factor is most critical for fish immune response?





45. Sea lice are mainly a problem in:





46. The most sensitive life stage of fish to toxins is:





47. The main purpose of quarantine tanks is to:





48. Which is an example of a monogenean parasite in fish?





49. Nitrite poisoning in fish is also known as:





50. The first step in fish disease diagnosis is: