opah guttatus means “fish moon” is a species that lives in the deepest parts of the oceans. Researchers from the American NOAA showed that the fish tissue are warmer by an average of approx. 5 degrees than the ambient temperature. This is the first discovered species of fish, which is fully homeothermic. Maintaining a constant body temperature allows these animals endure temperatures below 10 degrees, and the higher temperature causes the brain and heart that they are fast and vigilant predators.
– before we know exactly the fish seemed to us that it is slow like most organisms that live on the ocean level. However, because her body maintains a constant temperature, it is a very active predator who can effectively pursue smaller organisms and traverse long distances – says one of the discoverers of Nicholas Wegner from NOAA.
The newly discovered species opah guttatus is a massive fish with the body of a disc-shaped, extremely unusual for a predator. It hunts usually at a depth of 50-200 meters below the ocean surface. The case of fish and unusual construction of the cardiovascular system is described in the journal Science.
– Nature always finds a way to surprise us. Even where we least expect it. It’s hard to stay warm when surrounds you very cold water. However, these fish very well deal with it fared – sums up Wegner.
The vast majority of fish are cold-blooded. This means that adjusts their body temperature to ambient temperature.
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