noun
seafood; marine products; fish and shellfish
Broad term covering edible aquatic animals, especially fish and shellfish. Used in contexts like markets, cuisine, and fisheries.
この市場では新鮮な魚介が手に入る。
You can get fresh seafood at this market.
魚介類をたっぷり使ったパエリアを作った
I made paella using plenty of seafood.
Compound of 魚 (fish) and 介 (shellfish/shell). The alternate spelling 魚貝 directly uses 貝 (shellfish).