Ammonia in Ponds Quiz

________and ______ are key factors that affect the toxicity of ammonia in fish ponds.

• Nitrate and sulfate

• Temperature and pH

• Ammonia and nitrates

• Forms and toxicity

Answer explanation

The toxicity of ammonia in fish ponds is significantly influenced by temperature and pH. Higher temperatures and pH levels increase the proportion of toxic ammonia, making the environment more harmful for the fish. The other options, such as nitrate, sulfate, forms, and toxicity, do not directly affect ammonia toxicity in the same way.

___________and alkaline pH levels can increase the toxicity.

• Low temperatures

• Nitrates

• High Temperatures

• Liming

Answer explanation

The correct answer is 'High Temperatures'. High temperatures can increase the toxicity in conjunction with alkaline pH levels. This is because high temperatures can enhance the chemical reactions that lead to toxicity. Other options like low temperatures, nitrates, and liming do not have the same effect.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Maintaining ___________and ___________conditions is crucial for the health in fish ponds.

• good fish health and operational

• optimal temperature and pH

• low temperature and unhealthy

• feeding conditions and pH

Answer explanation

The health of fish in ponds is greatly influenced by the conditions of their environment. Among the options provided, maintaining optimal temperature and pH is crucial. These factors ensure the water is suitable for the fish to live and thrive, as they directly affect the fish's metabolism and overall health. Other options like good fish health and operational, low temperature and unhealthy, feeding conditions and pH are not as comprehensive or accurate.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

TAN in aquaculture stands for ?

Answer explanation

In the context of aquaculture, TAN stands for Total Ammonia Nitrogen. This term is used to refer to the total concentration of both ionized and unionized ammonia nitrogen. It's a crucial parameter to monitor in aquaculture as high levels can be harmful to aquatic organisms.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What are the treatment options for reducing ammonia levels in fish ponds?

• Pumping fresh water and maintaining high dissolved oxygen levels

• Reducing algae populations in fall and winter

• Increasing water temperatures to promote aerobic algae bloom mineralization

• Exposing fish to chronic levels of ammonia

Answer explanation

The best method to reduce ammonia levels in fish ponds is by pumping fresh water and maintaining high dissolved oxygen levels. This helps to dilute the ammonia and promote the growth of beneficial bacteria that can convert harmful ammonia into less harmful substances. The other options, such as reducing algae populations or increasing water temperatures, do not directly address the issue of ammonia levels.

What are effective ways to decrease high TAN levels in fish ponds?

• Drain all of the water out of the pond and start from scratch

• Stop feeding the fish all together

• Increase feeding rates until TAN levels decrease

• Reduce feeding rates until TAN levels decrease

Answer explanation

High Total Ammonia Nitrogen (TAN) levels in fish ponds can be harmful to the fish. One effective way to decrease these levels is to reduce the feeding rates. Overfeeding can lead to excess waste, which contributes to high TAN levels. Therefore, by reducing the amount of food given to the fish, the TAN levels can be effectively managed and decreased.

What is the reccommended feeding rates to prevent high TAN concentrations?

• 50 pounds per acre per day

• 100 pounds per acres per day

• 75 pounds per acre per day

• 125 pounds per acre per day

Answer explanation

The question asks about the recommended feeding rates to prevent high TAN concentrations. The correct answer is 100 pounds per acres per day. This suggests that this rate is optimal for preventing high TAN concentrations, as lower or higher rates might not be as effective. It's important to follow these guidelines to maintain a healthy environment.

Tags

NGSS.MS-LS2-1

What is the relationship between ammonia concentration and pH, and temperature?

• Ammonia concentration decreases with higher pH and temperature

• Ammonia concentration increases with higher pH and temperature

• Ammonia concentration is not affected by pH and temperature

• Ammonia concentration is inversely proportional to pH and temperature

Answer explanation

The correct answer is that ammonia concentration increases with higher pH and temperature. This is because ammonia is a weak base and its concentration in a solution is influenced by the pH and temperature of the solution. Higher pH and temperature conditions favor the formation of more ammonia molecules.

Tags

NGSS.HS-PS1-5

Acidic and alkaline basic death points for fish?

• pH 4 and 11

• pH 0 and 5

• pH 9 and 10

• pH 7 and 10

Answer explanation

The death points for fish in acidic and alkaline conditions are at pH 4 and 11. Fish cannot survive in environments with pH levels below 4 or above 11, as these extreme conditions can cause stress, illness, and eventually death.

________is the application of calcium and magnesium rich minerals, and acts as a base to neutralize acidity.

• Stocking

• Biofiltering

• Liming

• Nitrification

Answer explanation

Liming is the correct answer because it involves the application of calcium and magnesium-rich minerals, which act as a base to neutralize acidity. Stocking, biofiltering, and nitrification do not involve the application of these minerals and do not serve the same purpose as liming.