The fish is real moon the first to be discovered that has all the warm-blooded like mammals and birds, according to a study by the National Oceanic and Atmospheric Administration (NOAA) of the United States.
The mammals and birds usually keep warm blood, but the real moon is the first fish that is being able to keep all his body warmer than the environment around it.
The fish that inhabit the same deep water that the moon actual tend to be slow and sluggish and to conserve energy, hunt ambushing their prey rather than pursue them. However, in the case of sunfish their constant flapping warms your body increase your metabolism, your movement and your reactions , according to a study published by Science .
This fish, about the size of a large tire car, is found in all oceans and lives hundreds of feet below the surface, in cold water and in low light.
It is also characterized by swimming with the rapid movement of their pectoral fins as if they were wings. He who has the bleed hot makes sunfish a predator high performance, nothing faster reacts more quickly and has the sharpest view, according to Nicholas Wegner fisheries biologist, NOAA, in La Jolla (California), lead author of the study.
“Before This discovery, had the impression that this was a slow-moving fish, as most fish in cold environments, but the fact that it can warm your blood making it a very active predator chasing agile prey such as squid and you can will migrate over long distances, “said
MORE:. The health of Spanish bullfighter who suffered two bloody gored in the neck
MORE: Alert: two famous brands of sunscreens protect less than what they say
Wegner started realize that the real moon was a rare fish when study co-author, biologist Owyn Snodgrass, took a sample of gill tissue.
The hot blood vessels that carry blood into the gill tissue surrounding it Cold carry blood back into the body after absorbing oxygen from the water.
This design is known in engineering as “countercurrent heat exchange,” which in the sunfish supposed blood hot coming out of the center of the body helps warm the cold blood returning from the respiratory surface of gills.
It is similar to a car radiator and is a natural fit for warmth. In addition, the unique location of heat exchange in the gills allows almost all the animal’s body temperature remains high even in cold water, which is known as endothermic, the study found.
“Never before had” seen anything like the gills of a fish This is a “great for these animals that gives them a competitive edge innovation,” said the expert, who noted: “The concept of countercurrent heat exchange appeared in fish long before us to think on it. “
The researchers collected data on the temperature of specimens of fish real moon in the West Coast and found that their body temperature was usually higher than the water around them.
Also they coupled temperature gauges to copies of the fish and followed in their dives hundreds of feet, whereupon they found that his body temperature was stable even when the water temperature descended sharply.
The real moon fish has a muscle temperature is on average five degrees higher than the water that surrounds it as anything between 150 and 1,000 feet below the surface.
EFE
No comments:
Post a Comment