Koal was a Trill man in the 24th century.
Biography[]
He was the uncle of Jadzia and Ziranne Idaris, and owned a large plantation in Manevri, in Trill's southern hemisphere. On his plantation was a large lida orchard. (DS9 - The Lives of Dax short story: "Reflections")
Besides the sale of lida fruit for food, Koal's plantation also prepared lidashk, a liqueur made from lida. Trade Commissioner Etom Prit made it a point to mention he supported local artisans like Koal when he served lidashk. (DS9 novel: Revenant)