Answer:
分 BUN, wa(keru), wa(karu) - divide, part, minute
交 KOU, maji(ru), kawa(su) - mix
圭 KEI, sayo, tama, yoshi, sayoshi - a jade tablet
参 SAN, mai(ru) - three, visit, come
豊 HOU, yuta(ka) - abundant, rich
They all take the "fish" radical (魚 GYO, sakana, uo - fish) to become other characters
魵 ebi - shrimp
鮫 same - shark
鮭 shake, sake - salmon
鯵 aji - horse mackerel
鱧 hamo - pike conger eel