鮠 is a traditional Chinese hanzi, listed here under the keyword “a kind of shad with a head like a sturgeon”. It is built from 魚 (fish) and 危 (dangerous).
On KumiJi Glyph Explorer, open the parts search and type “fish” + “dangerous”. 鮠 is among the results, together with every other character containing the same shapes.
Open 鮠 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.