Did you know that most puffer fish, when eaten, are toxic to predators—and even humans? According to Claricoates, despite this risk, countries such as Korea, China and Japan consider puffer fish a culinary delicacy and only specially-trained chefs know how to serve them safely. The toxin in the puffer fish, called tetrodotoxin, is found throughout its body, and is actually produced by bacteria, said Dr.
Puffers that have been raised in a bacteria-free environment experimentally did not produce the toxin in that instance. However, the the chefs who prepare Fugu , or puffer fish fillets, were not interested in serving a fish that did not have the toxin, as the numbing effect from the toxin when the fish is eaten is the appeal of eating puffer fish, he said.
Even with proper preparation by a trained chef, about a half dozen diners die every year from the paralyzing effects of eating puffer fish, so they should generally not be considered food. Despite using their fins to help them swim with a tail fin acting as a rudder , puffer fish are notoriously slow-moving. However, they do have other methods for deterring—or defeating—predators out to get them, said Claricoates, including:. Puffer fish do not have scales, but instead have spines which you may not be able to get a good look at until they puff up , said Claricoates.
As a fish owner, you have to be sure that the water quality is excellent—specifically nitrite, nitrate and ammonia levels in your tank. If these levels are high, it often indicates a dirty tank, and can create health issues for your fish, she said.
Water checks can be done by fish stores for you on a monthly basis or you can purchase a home kit to test your water, she said. A puffer fish, if kept in an ideal environment, can live up to ten years. In the wild, puffer fish are predators, and eat a variety of snails, shellfish, crustaceans and other fish, said Claricoates. In captivity, puffers will eat almost anything, so a variety of foods should be offered to allow for a healthy mix, she said.
Claricoates recommends a diet consisting of foods with shells, including blue crab, mussels, clams, shrimp, live snails and bloodworms. She also advised that when or if you are offering live food, it must be quarantined in a separate aquarium for a month prior to feeding it to your puffer fish. This ensures the food is healthy and prevents puffer illness from unhealthy food. The diet of the pufferfish includes mostly invertebrates and algae.
Large specimens will even crack open and eat clams, mussels, and shellfish with their hard beaks. Poisonous puffers are believed to synthesize their deadly toxin from the bacteria in the animals they eat. Some species of pufferfish are considered vulnerable due to pollution, habitat loss, and overfishing, but most populations are considered stable.
All rights reserved. Common Name: Pufferfish. Scientific Name: Tetraodontidae. Type: Fish. Diet: Carnivore. Group Name: School. Size: Up to 3 feet. Size relative to a teacup:. This photo was submitted to Your Shot, our photo community on Instagram.
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Do they serve this dangerous delicacy at Nobu? Takanori Kurokawa, executive head chef at Soseki, London, held a blowfish licence about 12 years ago when working in Tokyo. According to Kurokawa, there's a lot of toxin in the testicles, but pickling them for up to a year will dilute the poison.
Nevertheless, he says, "I don't agree with eating this part and wouldn't recommend anyone else doing so. The blowfish sashimi, or "fugu", on the other hand, "is delicious and usually eaten in winter. It is gelatinous, doesn't smell fishy, and has the most umami [that savoury flavour often associated with monosodium glutamate] of all the fish. Nearly all fatalities occur when untrained persons prepare and eat them.
But, purely in the spirit of curiosity ie don't try this at home , how does one go about preparing a blowfish?
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