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Another threat to the totoaba is from human poaching: the swim bladder, commonly referred to as "maw" is a valuable commodity, as it is considered a delicacy in Chinese cuisine; [20] the meat is also sought-after for making soups. It can fetch high prices – 200 bladders may be sold for $3.6 million at 2013 prices – as it is erroneously ...
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ in bony fish (but not cartilaginous fish [1]) that functions to modulate buoyancy, and thus allowing the fish to stay at desired water depth without having to maintain lift via swimming, which expends more energy. [2]
Isinglass (/ ˈ aɪ z ɪ ŋ ɡ l æ s,-ɡ l ɑː s / EYE-zing-gla(h)ss) is a form of collagen obtained from the dried swim bladders of fish. The English word origin is from the obsolete Dutch huizenblaas – huizen is a kind of sturgeon , and blaas is a bladder, [ 1 ] or German Hausenblase , meaning essentially the same. [ 2 ]
Chinese bahaba caught in Hong Kong are also sometimes transferred to the Chinese mainland where resold. [9] The fishing is prompted by the value placed on the swim bladders of this fish for use in traditional Chinese medicine. In some markets, notably the Chinese markets, a good specimen swim bladder fetches more than its weight in gold.
In Latin, "vesica piscis" literally means "bladder of a fish", reflecting the shape's resemblance to the conjoined dual air bladders (swim bladder) found in most fish. [2] In Italian, the shape's name is mandorla ("almond"). [3] A similar shape in three dimensions is the lemon. The vesica piscis in Euclid's Elements
These fish are best kept with live or frozen feed and they easily outgrow the tank within eight to ten months. An aquarium with the minimum diameter of 6 by 3.5 feet (1.8 by 1.1 m) and 300 US gallons (1,100 L; 250 imp gal) is suggested as a bare minimum but 400–800 US gallons (1,500–3,000 L; 330–670 imp gal) is the best way to go. [ 9 ]
Once an abundant commercial fish off the coasts of China, Korea and Japan, its population collapsed in the 1970s due to overfishing. [6] Global catch later rebounded, with 388,018 t landed in 2008. [7] Salted and dried, they are a food product known as gulbi (굴비) in Korean. Yeonggwang gulbi is a prized delicacy, selling for over $100 a bunch.
The physostome fish encompass the bichirs, gars, a number of carps, trouts, herrings, catfish, eels and the lungfish. While the gas bladder in fish mainly serves as a buoyancy organ, some physostomes (though not all) can use their gas bladder as a lung , allowing them to live from atmospheric oxygen in conditions where aquatic oxygen levels ...