Where would have more dissolved oxygen a lake containing catfish or one containing trout and why?

1. Do catfish or trout need more oxygen?
2. What is the lowest possible amount of dissolved oxygen a trout can survive in?
3. What increases dissolved oxygen in water?
4. How much dissolved oxygen does a catfish need?
5. How much dissolved oxygen do trout need?
6. Why can catfish survive in low oxygen conditions?
7. How does dissolved oxygen affect fish?
8. How does oxygen levels affect the location of fish in a lake?
9. How do you increase dissolved oxygen in a lake?
10. How much dissolved oxygen do fish need?
11. What organisms in the lake produce oxygen that dissolves in the water?
12. How can fish get more oxygen?
13. Why does dissolved oxygen decrease in water?
14. How do fish get oxygen?

Do catfish or trout need more oxygen?

Warmwater fish, like catfish, can tolerate living in water that has less oxygen. Coldwater fish, like trout, require more oxygen.

What is the lowest possible amount of dissolved oxygen a trout can survive in?

For salmon and trout eggs, dissolved oxygen levels below 11 mg/L will delay their hatching, and below 8 mg/L will impair their growth and lower their survival rates. When dissolved oxygen falls below 6 mg/L (considered normal for most other fish), the vast majority of trout and salmon eggs will die.

What increases dissolved oxygen in water?

Dissolved oxygen levels are increased by supplementing wind and wave action, adding plants to water and exposing water to purified oxygen. Using the latter method can result in supersaturation, or levels of oxygen in excess of natural levels.

How much dissolved oxygen does a catfish need?

Catfish may survive oxygen concentrations under 1.0 ppm, but the research results showed that when dissolved oxygen is maintained above 3.0 ppm, catfish eat more than twice as much feed and grow twice as fast as fish exposed to lower levels of oxygen.

How much dissolved oxygen do trout need?

Oxygen must be present in the water at a concentration of at least four parts per million in order for trout to survive. However, water's ability to carry oxygen is dependent on its temperature, and the warmer the water the less oxygen it can carry.

Why can catfish survive in low oxygen conditions?

Dissolved Oxygen: The supply of dissolved oxygen often becomes limiting to catfish because the combined respiration of fish, phytoplankton, and mud-dwelling organisms exerts a tremendous demand for oxygen.

How does dissolved oxygen affect fish?

When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive. The colder water is, the more oxygen it can hold. As the water becomes warmer, less oxygen can be dissolved in the water.

How does oxygen levels affect the location of fish in a lake?

The oxygen and temperature factors will finally reach a point where a fish's digestive system functions quickly. However warm water does not contain much excess oxygen, which fish need. When it gets too warm and oxygen levels drop, fish become sluggish and inactive.

How do you increase dissolved oxygen in a lake?

Dissolved oxygen levels are increased by supplementing wind and wave action, adding plants to water and exposing water to purified oxygen. Using the latter method can result in supersaturation, or levels of oxygen in excess of natural levels.

How much dissolved oxygen do fish need?

Fish, crabs and oysters that live or feed along the bottom require dissolved oxygen concentrations of 3 mg/L or more. Spawning migratory fish and their eggs and larvae need up to 6 mg/L during these sensitive life stages.

What organisms in the lake produce oxygen that dissolves in the water?

In aquatic environments, free-floating microscopic plants known as algae, and larger submersed plants (macrophytes), release oxygen directly into the water where it is used by animals and other organisms, including the plants themselves.

How can fish get more oxygen?

The best way to increase oxygen is to increase the surface area of the aquarium. Increase Surface agitation or water movement on the surface. This allows more oxygen to dissolve and more carbon dioxide to escape. You can also add a source of fresh oxygen by installing an air pump.

Why does dissolved oxygen decrease in water?

Low dissolved oxygen (DO) primarily results from excessive algae growth caused by phosphorus. Nitrogen is another nutrient that can contribute to algae growth. As the algae die and decompose, the process consumes dissolved oxygen. ... Die-off and decomposition of submerged plants also contributes to low dissolved oxygen.

How do fish get oxygen?

Fish take water into their mouth, passing the gills just behind its head on each side. Dissolved oxygen is absorbed from—and carbon dioxide released to—the water, which is then dispelled. The gills are fairly large, with thousands of small blood vessels, which maximizes the amount of oxygen extracted.