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Which fish products are used to make isinglass for jellies and for clarifying wine and beer?

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Bluefin tuna swimming underwater in a group, with silvery bodies and streamlined shapes, near Japan. — perciform Bluefin tuna (*Thunnus thynnus orientalis*) in the waters near Japan.

Isinglass is a pure form of gelatin used for making jellies and as a clarifying agent for wine and beer. While it is traditionally associated with the air bladders of sturgeons, it is also obtained from various other fish species.12

Within the context of perciform fishes, isinglass is produced from the air bladders of:

Drums (family Sciaenidae)2
Threadfins (family Polynemidae)2