How to identify poisonous fish

Not only puffer fish has poison. Some common fish that you often eat also contain toxins, such as herring, tuna, eels, sardines .

Fish have poison in spines protected

Many types of fish have toxins in their spines. They have sharp, sharp spines in the dorsal, pelvic, thoracic and gill fins, which live a lot in the sea. Some live in freshwater like grouper (also known as Chinese flower copy) - there are 12 unequal spines on the dorsal fin, 4th, 5th and 6th spines are longer. When this fish prick stabbed into the body, the stabbed area was swollen, festering and aching, body fever. Complications will be dangerous when there are toxins, mucus due to fish body excreted through the spikes and penetrate into the body.

Fish have toxic glands (with ducts or no ducts in the fin spines).

This fish lives both offshore and near the coast, with colors suitable for the sea floor. They are sharks, rough, tiger, rough, fish, barbs, cow fish, stingrays . They have many poisonous spines on the dorsal, pelvic, anal fins, caudal fin and have strong teeth. strong, sharp. When the rays of the rays hit the bodies of other animals, the tail spines will break and the fracture will grow new spines. The toxins in the body will affect the nervous system and cardiovascular system, causing muscle paralysis and lowering blood pressure. Toxic secretions from back spines are not toxic by toxins secreted from spines in gills.

Fish have poisonous eggs

Many cases of fish poisoning leading to death are caused by eating fish eggs. Poisonous eggs usually have small fins (shark, puffer fish .). Many types of fish have genital toxins such as leopard puffer fish, porcupines, cobia, herring, eels, and sardines. The poison in puffer fish eggs, shark is very stable with temperature and chemicals. In our country, there are many cases of severe poisoning due to eating puffer eggs, there are cases of death of the whole family. The toxins of eggs are able to circulate in fish blood, so the serum of fish blood is also very toxic.

Along the coast of our country, some types of fish often have poisonous eggs:

- Puffer fish: The body is tapered, the head is larger, the smaller the body is, the bigger the teeth, the finer, the more leopard-colored (except the belly).

- Herring: There are long soft spines in the dorsal fin (fish misconduct), or very straight slopes. From the fish's mouth to the fish's tail, there are pointed, toothless, delicious fins, but eggs and liver are very poisonous. In the period of sexual development, there is poison in the gills of fish, so absolutely do not eat this fish in the breeding season.

- River eels and sea eels: This group is mainly toxic in blood and serum. Pointed fish, pectoral fins, no pelvic fins, very sharp fins, sharp teeth, and tongue. Live a lot in the tropics, both in the river and in the sea. There are types weighing up to 2 kg.

Poisonous fish caused by parasites

On sturgeon stems, salmon . usually have the bacterium clostridium botulinum. It is impossible to distinguish these infected fish from other fish, while botulinum poisoning is often lethal. In particular, fish in the tropics are very susceptible to invading microorganisms and live on greasy fluid caused by excreted fish. Microorganisms grow stronger when fish die and also the period when fish secrete the most greasy fluids. Therefore, the problem of hygiene in cooking processing is especially important when eating marine fish.

Fish are poisonous but have not been identified

In many tropical countries, there are some types of poisonous fish that poisonous doses kill very small animals and the nature of the poison has not been studied. Representatives of tuna are abundant in our country. Big fish, can be up to 4-5 m long, weighs several hundred pounds. Pointed head, slender, dorsal fin with 14 hard and longest spines on the second spine, then lower to 14 th spines. Fish are dark green on the back and silvery white in the abdomen. Tuna is caused by microorganisms decomposing amino acids histadin into histamine. People who use marine fish often have only mild allergies when eating tuna.

In the river there are also some types of fish in the meat and liver organs, bile containing toxic substances they eat (vegetables, poisoned seaweed). For example, fish eating the seeds of money falling from trees along the banks of the river, people who eat this fish will be poisoned with money. There have been people eating dried sea fish also allergy, poisoning due to not handling, cooking carefully.

To avoid poisoning fish poisoning, fish must be identified and then cleaned and processed carefully. With strange fish, all organs should be removed. If in doubt, feed the dog and the cat first. If there are signs of poisoning, quickly bring the victim to a medical facility for timely treatment. While waiting for emergency transportation, must in any way cause vomiting to remove toxins from the body.