The dangers from ... the sea

The world of the ocean is a masterpiece with many animals and plants of all colors, states . But many animals in the ocean are deadly threats.

Nha Trang Oceanography Institute has researched and published 41 species of toxic and potentially deadly organisms .

Orange-spotted puffer fish ( Torquigener pallimaculatus ) Spotted mouse puffer fish ( Arothron immaculatus )
The most impressive is probably the mole-like pufferfish ( Arothron immaculatus ) with an eye-catching appearance, an egg-shaped body, dorsal fin with black, white belly . But in this egg the fish is concentrated an amazing amount of poison, every 200 grams of eggs can kill 200 people; The highest toxic content appears from April to October. Similarly, orange-spotted puffer fish ( Torquigener pallimaculatus ) is also a scary species, can kill 60-70 people for every 100 grams of eggs or liver.

Devilish crab ( Zosymus aeneus )

Blue-spotted squid ( Hapalochlaena lunulata )

Grid cones ( Conus textile )

Puffer fish poisoning has a very high mortality rate. In an emergency, the use of some available herbs such as perilla leaves, green beans, sweet potato leaves . can be effective on-site first aid. ( According to YkhoaNet )

Meanwhile, the blue-spotted octopus ( Hapalochlaena lunulata ), a fairly familiar species of seafood, also has a fancy appearance, on the whole body and tentacles, the blue spots look very beautiful. But this species is a deadly marine animal. Toxins concentrate in their salivary glands. For every 100 grams of meat and beard can kill two people; and 100 grams of salivary glands can kill up to 23 people .

In Vietnamese waters, scientists at Nha Trang Institute of Oceanography (Vietnam Academy of Science and Technology) have identified a list of 41 species of organisms containing potentially lethal toxins, most of them This species all lives in the sea; Only two freshwater puffer fish species have been discovered recently in some provinces in the Mekong Delta.

Specifically: a species of octopus, two species of shellfish, three species of seed crabs, a sam, 22 species of fish and 10 species of sea snakes. Particularly, two freshwater puffer fish species are identified as green puffer puffer fish ( Chelonodon nigroviridis ) and red-eye puffer fish ( Carinotetraodon lorteti ).

According to scientists at Nha Trang Institute of Oceanography, the majority of these toxic species have a wide range of habitats, ranging from the Gulf of Tonkin to the Gulf of Thailand such as puffer fish, cloudy grouper, and snakehead. sea. However, there are also some species such as snail shells, seed crabs, blue spotted squid . only recently caught in the central and southeastern seas.

According to the research of scientists, the nature of toxins in the above mentioned seafood species belongs to the group of neurotoxins, so when people are infected these toxins will directly affect the brain nervous system. Ministry, cardiovascular system . causes symptoms of typical poisoning in humans.

Most of them are dangerous poisons with high mortality rates during very fast action, with low toxic doses. Eggs and liver are usually two of the highest concentrations of toxic substances. But there are exceptions, meat and skin are the highest concentrations of toxins, while they are generally considered to be less unique.

For example, cloudy goby is classified as a skin-focused toxin. The most obvious manifestation of this fish is the reddish-brown body; each side has four black streaks of cloud shape; The dorsal and caudal fin membranes have many rows of black dots . The toxin of this fish is found in the body parts, especially concentrated in the skin, every 100 grams of skin can kill 9-10 people.

In particular, scientists at Nha Trang Institute of Oceanography said that different from previous studies, all the different body parts of three seafood species: crab, blue and soot all contain toxins. . Scientists at the institute recommend that "absolutely no toxic seafood be prepared for food in any form."

Blue puffer fish ( Chelonodon nigroviridis ) Red-eyed puffer fish ( Carinotetraodon lorteti )
In fact, most cases of poisoning, even loss of life, are caused by humans eating strong seafood containing toxins. In addition, because people touch or accidentally touch species such as sea snakes, blue spot squid, shells . they are bitten, stung or launched poisonous names. Toxic substances in the salivary glands will follow the teeth or poison names of these species into the human body through a wound.

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