Fish Health Management and Diagnostics

The video tutorial by Retheland Klinger Bowen, a researcher at the University of Hawaii, covers fish health management, disease prevention, and diagnosis. It emphasizes the importance of maintaining good water quality, proper nutrition, and effective husbandry practices to prevent diseases in aquaculture. The tutorial discusses water chemistry parameters, feeding practices, and sanitation methods. It also provides guidance on observing fish behavior to identify signs of sickness and offers insights into diagnosing diseases and understanding pathogens.

What is the primary focus of fish health management?

• Increasing fish production

• Treating diseases after they occur

• Reducing fish feeding costs

• Maintaining good husbandry skills

Which of the following is NOT a factor that can lead to poor water quality?

• Regular water changes

• Poor sanitation

• Overfeeding

• Over treatments

Why is it important to store fish feed in a cool, dry area?

• To prevent mold growth

• To increase the nutritional value

• To enhance the taste of the feed

• To make it easier to handle

What should be done instead of just topping off the tank to maintain water quality?

• Increase feeding

• Reduce tank size

• Perform a water exchange

• Add more fish

Which water chemistry parameter is toxic to fish at high levels?

• NH3 (unionized ammonia)

• NH4 (ionized ammonia)

• Total alkalinity

• Dissolved oxygen

What is a sign that fish might be experiencing stress or illness?

• Hiding in the tank

• Changing color

• Swimming erratically

• Eating aggressively

What type of disease requires treatment and can be passed from fish to fish?

• Infectious

• Nutritional deficiencies

• Genetic disorders

• Non-infectious

What is the purpose of keeping detailed records in aquaculture?

• To monitor water chemistry changes

• All of the above

• To track fish growth rates

• To identify the first signs of illness

What is the best sample for diagnosing fish health issues?

• A fish that has been dead for over 24 hours

• A frozen fish

• A healthy fish

• A dying fish

What is the difference between obligate and opportunistic pathogens?

• Obligate pathogens require a host, opportunistic do not

• Opportunistic pathogens require a host, obligate do not

• Both require a host to survive

• Neither require a host to survive