fish; fishes
A biological or formal term for fish as a taxonomic group; in everyday conversation, 魚 (さかな) is more common.
Fish are a group of vertebrates.
This aquarium exhibits fish from all over the world.
Many species of fish live in this river.
魚類 refers only to fish (a biological classification), whereas 魚介 includes both fish and shellfish.
Compound of 魚 (ぎょ, 'fish') and 類 (るい, 'kind, category').
Activities to protect endangered fish species are being carried out.
Researchers are studying the ecology of fish that live in the deep sea.