2, Ankang fish body soft, scaleless, head and body of the edge of the many cortical protrusions. The anterior half of the body is flat, disk-shaped, and the tail is tiny. Body length of more than 50 centimeters. Dorsal purple-brown, ventral surface light color. Head large, mouth wide, teeth sharp, black and white markings inside mouth. Pectoral fins broad and brachycephalic. Dorsal fin, the first three fin spines separated, the first spine at the top of the cortical flap (also called cortical spikes), the flap is parasitic with some light-emitting bacteria, the ankang fish's mouth is very large, and the teeth are canine, and the head of the head and a fishing rod, which from time to time will send out the flash of the stars to lure the small fish. It is like a fishing rod with a bright light hanging from it. Ankang is an offshore bottom fish, often lurking, with the first dorsal fin spines of the skin flap as bait, trapping those light-tending fish and shrimp, ankang fish basically eat waiting for food, the delicious is always delivered to its mouth.
3, in the sea fishing ankang fish, usually are female fish, usually do not see male fish. This is because the male fish shortly after birth, the individual is very small parasitic on the body of the female fish, most have been with the female fish into one, but a closer look, you can still identify the male fish body shape. Male and female so close, which is relatively rare in the animal kingdom. But there are very few males that live alone, and it is said that a male anaconda caught off Iceland weighed only one-thousandth of a female anaconda.
4, monkfish distribution in the western North Pacific, China's coast are produced. Other varieties of monkfish include the yellow monk, with a yellow-brown back, white inside the mouth and no black spots, produced in the northern East China Sea, Yellow Sea and Bohai Sea. Because of the Ankang fish head is large, body is small, the viscera ratio is significant, the meat rate is low, it is generally taken to disintegrate the processing, rather than using the whole frozen.
There are also a lot of light-lidded snappers, dragonheads, lampreys, baldheads, and so on.
Some sharks also glow. The light that occurs in the horned shark is an intense green phosphorescence that emanates from the many glowing organs scattered throughout the skin. There is one shark that glows hours after it dies.
Some scleractinian fish, which have more advanced luminescent systems, have rows of glowing globules on either side of their bodies. In the Indian Ocean, there is a kind of lamp-eyed fish, in the lower part of the eye, there is a large light-emitting organ on a short stalk that can be moved, like a lantern that can be lifted to and fro. When not in use, this "lamp" can be retracted, hidden in a bag under the eye.
There is also the lamprey, which has a small number of light-emitting organs, but emits a very strong light, like dazzling jewels and glittering pearls, which are set on the ventral side.
Living in the United States on the California coast of the phase tasting fish, the body has more than 700 luminous points, glowing white. All shapes and sizes of luminous fish, luminous groups are different, luminous organs are different, and the color of the light emitted is also different. These fish will glow because there are luminous cells in the body, or luminous organs within the luminous cells.
There are a lot of luminous fish in the world, this luminous fish can be divided into two categories, a class is "self-luminous fish", another class is "it luminous fish".
The U.S. bald fish is a self-luminous fish. The back of its head is flat, all for a pair of very large light-emitting device cover, like a "searchlight". Baldhead fish do not have eyes, light emitters can play a visual role. Baldheads have a set of strange hunting skills, people call it "strange fisherman". They often hide themselves, waiting for the right moment with their huge mouths open, and slowly swinging the filaments on their fins, with the luminescent devices at the end of the filaments looking like small swimming shrimps. Curious and greedy small fish think it is a meal, have chased after, just to eat, realized that they were deceived, and it is too late to get away, but became a meal for the bald fish.
A biologist in the United States once placed one of the most sensitive photometers on the seabed at 270 meters at night, and found that the luminous brightness of the bald fish was much brighter than during the day.
The glitterfish in the Red Sea and Indian Ocean are "it glow fish". The flash fish is only seven or eight centimeters long, and the light it emits is so bright that divers can see it more than 10 meters from the fish underwater. Because the flash of this fish can make divers underwater to see the time on the watch, so divers often catch it into a transparent plastic bag, as underwater lighting.
Flashlight
Flashing fish, also known as "light face fish", also known as "light eye fish". It has a layer of dark-colored "eyelids", attached to the bottom of the light-emitting device, as if the light switch, a moment on the pull, covering the light-emitting organ, extinguishing the light; a moment and then pull down, exposing the light-emitting organ, flashing the light. In fact, the fish itself does not emit light, but rather it is the light emitted by thousands of special bacteria that live in its head. These bacteria feed on the nutrients and oxygen in the fish's blood, and on the other hand, they emit light energy. So even some time after the glittering fish dies, the bacteria continue to glow.
In the marine world, whether it is the vast expanse of the sea surface, or 10,000 meters deep in the seabed are living in a variety of colors, strange and bizarre light-emitting organisms, like a wonderful "undersea dragon palace", all night long the fish lights shrimp fire brightly. It is they give no sunlight to the deep sea and the darkness of the sea surface to bring light. In fact, at least 44% of the fish in the dark layer have the ability to light themselves so that they can see other objects in the long night, so that it is convenient to hunt for food and find companions and mates.
Some fish, such as the striped bass and the dragonfish off the southeast coast of China, emit light from luminescent bacteria attached to their bodies, while many more emit light from the fish's own light-emitting organs.
Candlefish has multiple rows of luminous organs on its abdomen and ventral side, as if they were rows of candles, hence the name candlefish. The back of the head of the deep-sea lanternfish is flattened and covered by a pair of very large luminaries, which may play a role in vision.
Fish luminescence is a biochemical reaction caused by the catalysis of a special enzyme. The luminescent fluorophore is catalyzed by the enzyme fluorophore, which absorbs energy, turns into oxidized fluorophore, releases photons and emits light. This is a special example of chemiluminescence, i.e., only luminous without heat. Some fish can emit white light and blue light, some other fish can emit red, yellow, green and ghost fire-like shimmer, there are also some fish can emit several different colors of light at the same time. For example, a deep-sea fish with large glowing cheek organs emits blue and pale red light, while other tiny glowing spots all over the body emit yellow light.
The biological significance of luminescence in fish is fourfold: first, to trap food, second, to attract the opposite sex, third, population contact, and fourth, to confuse the enemy.