Bloch & J. G. Schneider, 1801
Synanceia verrucosa is a fish species known as the reef stonefish or simply stonefish. It is a carnivorous ray-finned fish with venomous spines. It lives on reef bottoms camouflaged as a rock. It is the most venomous known fish in the world. It can be lethal to humans.
This stonefish is usually brown or gray, and it may have areas of yellow, orange or red. This species reaches 30 to 40 centimeters long; a specimen of 51 centimeters has been recorded.
Distribution and habitat
This stonefish lives primarily above the Tropic of Capricorn. It is the most widespread species in the stonefish family, and is known from shallow tropical marine waters in the Pacific and Indian Oceans from the Red Sea to the Great Barrier Reef.
This fish lives in coral reefs. It may settle on and around rocks and plants, or rest on the seabed.
It eats mostly small fish, shrimp and other crustaceans.
The primary commercial significance of this stonefish is as an aquarium pet. It is also sold for meat in Hong Kong markets. It is consumed in the Philippines, especially in Chinese restaurants, and in Japan as expensive sashimi cuisine called okoze (オコゼ).
The reef stonefish is the most venomous fish in the world. Its dorsal area is lined with 13 spines, each of which has two venom sacs. The spines are sharp and stiff and have been known to pierce boot soles.
Effects of the venom include severe pain, shock, paralysis, and tissue death. A large dose can be fatal to humans, generally young children, the elderly, and those with weakened immune systems. Medical treatment includes the antivenom. A local anesthetic can reduce the pain. First aid includes immersion of the affected limb in hot water; this is thought to help denature the proteins in the venom. The immobilization of venom at penetration site using a tourniquet or firm constrictive bandaging is no longer recommended. Surviving victims may have nerve damage, which can lead to local muscle atrophy.
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