Do fish need oxygen?

Yes, fish need oxygen to breathe. They absorb oxygen from the water and excrete carbon dioxide through their gills. The following is a detailed introduction to the oxygen needs of fish:

Respiratory organs:

The main respiratory organ of fish is gills. Gills provide oxygen to the cells in the fish's body by efficiently using dissolved oxygen in the water. When water passes through the fish's gills, the oxygen dissolved in the water is absorbed by the capillaries on the fish's gills. After blood circulation, the oxygen is transported to the fish's tissues and organs.

Importance of Oxygen:

For fish, the intake of oxygen is very critical. It is an element necessary to maintain fish life activities. The metabolism of fish requires a large amount of oxygen to maintain its body temperature, digestion, movement and other physiological functions. If the oxygen content in the water is insufficient, the survival of fish will be seriously threatened.

Water quality and oxygen:

The oxygen content in water depends on the temperature of the water body, plant growth, water flow speed, and the number of organisms in the water body. Bodies of water with high temperatures usually have lower oxygen levels, while waters rich in plants such as aquatic plants usually have higher oxygen levels. In addition, waters with faster currents usually have higher oxygen levels, while waters with slower currents are prone to oxygen deficiencies.

Captivity:

In captivity, fish require proper water quality management to ensure sufficient oxygen in the water. Fish farmers typically monitor oxygen levels in the water and maintain it through aquarium filters, aeration equipment, etc.

Therefore, fish need oxygen to breathe, and sufficient oxygen content in the water is crucial for the survival and health of fish. For the environment where fish are raised, it is very important to maintain sufficient oxygen in the water body.

animal tags： fish