Vegetarianism and beer a yeasty flavour. Finings are used to clear the beer of yeast – there are a variety of agents used as finings, including silicon dioxide, gelatin, polyclar, and isinglass. Isinglass is the most common fining used to clear cask ale. Isinglass is produced from the swim bladders of fish, usually sturgeon, though also those in the polynemidae, sciaenidae and siluridae families; as it is an animal product, cask ale cleared with isinglass is not considered vegetarian. A brewer may also use some form of animal product in the later stages of beer processing, such as glycerol monostearate, which is used
Tonda Wildlife Management Area the subject of poaching by people from neighbouring Papua Province, Indonesia. Local people also harvest and sell a number of wildlife resources to merchants on the other side of the border, including deer meat and antlers, candlenut, the plastra of freshwater turtles, shark fins, saratoga ("Scleropages jardinii") fingerlings and the dried swim bladders of certain fish. Tonda Wildlife Management Area The Tonda Wildlife Management Area is a wetland of international importance and the largest protected area in Papua New Guinea. It is located in the south-western corner of the Western Province and is contiguous with Wasur National Park of Indonesia.