Protacanthopterygii facts for kids
Quick facts for kids Protacanthopterygii |
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| Ayu (Plecoglossus altivelis: Osmeriformes) in Kawasaki (Kanagawa Prefecture, Japan) |
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Protacanthopterygii
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Argentiniformes |
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Protacanthopterygii is a large group of fishes. These fish are part of the teleost group, which includes most modern fish. They are known as a superorder, which is a very big family of related animals.
Most Protacanthopterygii fish live in cooler, temperate waters. You can often find them in the northern hemisphere. Some of these fish live in fresh water, like rivers and lakes. Others live in the salty ocean.
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What are Protacanthopterygii Fish?
Protacanthopterygii are a superorder of ray-finned fish. This means their fins are supported by bony spines or "rays." They are a very successful group of fish. Many of them are important for food around the world.
Where Do They Live?
These fish are found in many different places. They prefer waters that are not too hot or too cold. This includes areas like North America, Europe, and Asia. You can find them in both fresh water and salt water. Some species, like salmon, even travel between fresh and salt water during their lives.
Famous Fish in This Group
Some of the most well-known fish belong to the Protacanthopterygii superorder.
- Salmon: These fish are famous for swimming upstream to lay their eggs. They are often found in the Pacific and Atlantic oceans.
- Trout: Trout are closely related to salmon. Many trout species live in fresh water. They are popular for fishing.
- Pikes: Pikes are known as strong predators. They have long bodies and sharp teeth. They live in fresh and brackish waters.
Main Groups of Protacanthopterygii
Scientists divide Protacanthopterygii into several main groups, called orders. Each order contains different types of fish with shared features.
- Argentiniformes: This group includes deep-sea smelts and barreleyes. Many of them live in the dark parts of the ocean.
- Esociformes: This order includes the pikes and mudminnows. They are often found in slow-moving fresh waters.
- Osmeriformes: This group contains the true smelts and their relatives. Many are small, silvery fish.
- Salmoniformes: This order includes salmon, trout, and char. They are well-known for their migrations and importance to ecosystems.
See also
In Spanish: Protacantopterigios para niños
