HomeTourismThe danger of predatory fish for tourists and the Black Sea is...

The danger of predatory fish for tourists and the Black Sea is greatly exaggerated

For several days now, Crimean public pages have been writing about groupers – a predatory tropical fish that was caught in the Black Sea and which, if spread, could allegedly cause irreparable damage to the ecosystem – they say, it is very voracious. The Alushta Aquarium, where two hooked groupers are now kept, even announced a reward: 5 thousand rubles. They will pay the one who brings another sea predator.

However, according to experts, there is no danger to the ecosystem. “Groupers are fish that live primarily in tropical and subtropical waters. And they can disrupt the ecosystem of the Black Sea if there are 100–200 of them, and it is not a fact that a population will form from this. It should number at least 500 individuals,” marine biologist Nikita Kornilov told TourDom.ru.

And the formation of the population can be hampered by the fact that the Black Sea is very uncomfortable for groupers: “It has low salinity, a very small amount of oxygen in the water, and groupers need a lot of it – they are large fish. This means there is little fauna in the sea. It is there, but in comparison with the places where groupers usually live, it is nothing. The water temperature also plays an important role – for the population to develop, it must be at least 24 degrees.”

In other words, according to the biologist, rumors about the threat to the ecosystem are greatly exaggerated: “This is fake and obscurantist.” A much greater danger to the fauna of the Black Sea, according to Nikita Kornilov, is not invasive (that is, alien) species that are released into the sea and they can allegedly breed in a new environment, but water pollution due to shipping and fishing, as well as hydrogen sulfide sources.

By the way, even where groupers feel at ease, for example in the Indian Ocean, they do not pose a serious danger to humans. “Unless, of course, you try to catch them,” clarifies Nikita Kornilov. – In this case, he can hit with a ram. Bite? His teeth are small, he won’t bite through a wetsuit.”

However, not everyone believes that the fishermen donated groupers to the Alushta Aquarium. There is also another version – that this is a Korean perch, a valuable commercial fish, which was first noticed in the coastal waters of Crimea back in 2013.

Source: Tourdom

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