Thu. Jan 20th, 2022


Samples of Pacific football fish.

Pacific FootballFish samples.
Pictures: Courtesy of William Luddt / LA County Natural History Museum (NHM)

In May 2021, a Pacific football fish washed up on the shores of Crystal Cove State Park in Newport Beach, California. Still in good condition, rarely seen Spikes, sharp teeth and a bioluminescent lore can be seen on the body of the fish. But as scientists go on to discover, so did it Biofluorescent tissue, a feature that has never been seen before in this type of fish.

The sacred crap is the deep sea filled with all sorts of strange things. That this Pacific football fish (Hymantolphas sagamias) — One of the 177 known Anglerfish species — uses a bioluminescent bait to catch prey, which makes perfect sense in terms of the animal’s black-and-black environment. But Biofluorescence Above that? That’s weird, as this form Lighting usually requires an external light source.

“Anglerfish are known for their ability to produce light for their bioluminescence,” explained William Ludd, assistant curator of ichthyology at the Los Angeles County Museum of Natural History, in an email. “It simply came to our notice then. Including fluorescent tissue.Luddt New author Paper With Todd Clardy, Collection Manager for ichthyology at NHM.

Biofluorescence and bioluminescence may sound similar, but they are two different things. Bioluminescence describes the light produced by living organisms, in which case the bioluminescence bacteria are located in the anglerfish lore. Biofluorescence, on the other hand, is when organisms absorb Light from around them and throw it back into a colorful glow. This combination of biofluorescence and bioluminescence has never been seen before in anglerfish, but it does exist in some deep-sea fish, such as jellyfish and ciphonophores.

Green biofluorescence is emitted from fish when exposed to blue fluorescent light

Green biofluorescence is emitted from fish when exposed to blue fluorescent light
Pictures: Courtesy of William Luddt / LA County Natural History Museum (NHM)

Biofluorescence is actually quite common, amphibians, reptiles, birds, tardigrades, Flying squirrel, Platypus, And springhares, Except for some Fish.

ichthyologists biofluorescent Tissue without employing sophisticated equipment or techniques. For the new study, published in the Journal of Fish Biology, “All we used was a fluorescent blue light, which looked like a fancy flashlight, and a filter for our camera – and safety goggles for our eyes!”Ludot told Gizmodo. “It just shows that sometimes you don’t need a full lab of expensive equipment to make exciting discoveries.”

Ludot and Clardy speculate that the Pacific football fish biofluorescence The deep sea is being fueled by its fiery greed due to the absence of any other light source. This particular species lives deep 1,000 4,000 feet (305 to 1,220 meters). Swimming in the dark, anglerfish use their greedy tips to attract small fish, squid and other prey, known to scientists as “esca”, which are easily explored. Like insects near closed flames, these predators cannot resist light.

Isn't she beautiful?  A view of the fish as it was studied in the lab.

Isn’t she beautiful? A view of the fish as it was studied in the lab.
Pictures: Courtesy of Sally Marquez / LA County Natural History Museum (NHM)

“It is possible that the fluorescent patterns we have seen in this fish give it a slight advantage over other species that may not be fluorescent without bioluminescence, and in a habitat where it is difficult to find food that can make all the difference,” Ludd said, an evolutionary perspective. Adding, “I think it highlights the many interesting ways that animals have adapted to live in the deep sea, which is a very hospitable place.”

Examination of female specimens also found sharp and very thin teeth, some of which point backwards. To prevent the prey from escaping after being captured. These fish are scary to look at, but as Ludd mentions, they are nothing to worry about while swimming on the beach. They have been given deep sea accommodation. Looking ahead, researchers are hoping to record as many fish as possible, as Ludd explains, “including some of these rare deep-sea species that only come to the surface from time to time.”

More: Scientists want to know why these adorable rats can burn in the dark.



Source link

By admin

Leave a Reply

Your email address will not be published. Required fields are marked *