Yes, all fish need oxygen to survive.
How Do Fish Get Oxygen?
Fish require oxygen to live, just like humans and other animals. However, they obtain it differently.
Dissolved Oxygen in Water
- Fish absorb dissolved oxygen (DO) directly from the water into their bloodstream.
- They do this through their gills, which are specialized organs designed for this purpose.
| Method | Description | Example Species |
|---|---|---|
| Gills | Fish use gills to extract dissolved oxygen directly from the water. | Most fish |
| Labyrinth Organ | Some fish have a labyrinth organ allowing them to breathe atmospheric air in addition to absorbing oxygen through gills. | Bettas, Gouramis |
Additional Information
- Even though some fish, like bettas and gouramis, can breathe air using a specialized organ called the labyrinth organ, all fish still need sufficient oxygen levels in their water environment.
- Maintaining adequate oxygen levels in the water is crucial for the survival of all fish species.
