In Primorsky Oceanarium settled unique Ctenophora

© Public domain Ctenophore of the genus Beroe. Archival photoIn Primorsky Oceanarium settled unique Ctenophora© Public domain

Unique sea animals, the ctenophores Beroe became new inhabitants of the Primorsky Oceanarium in Vladivostok, according to the institution.

New animals lived with jellyfish, said the aquarium. Ctenophora unique and allocated in a separate type, it is the largest among the moving with the help of the cilia of animals. If their cilia is decorated with colorful diodes — so Beroe (Beroe cucumis) reflect and refract the light.

«It’s local inhabitants. Caught near the aquarium, Peninsula Zhitkova. Beroe feed on other ctenophores, bolinopsis (Bolinopsis micado), which we also maintain. But they are spared from the fate of becoming food for the brethren. Beroe specialists aquarium feed small crustaceans – artmiami», — said the employee of the contents of hydrobionts of the far Eastern seas Marat Khaidarov, whose words are reported.

In 80-ies in the Black sea with ballast waters brought ctenophores of Mnemiopsis. Those in the absence of natural predators began to multiply, devouring plankton, eggs and juvenile fish. In the 90-ies of the emergence of the Black sea ctenophore Beroe has led to a sharp decline in the biomass of Mnemiopsis leidyi, and growth of zooplankton and fish larvae, and later fish stocks, has added to the aquarium.

Ctenophora (Ctenophora) — exclusively marine animals with oval, spherical or flattened body. Their size reaches up to 1.5 meters, the most shallow individuals — five millimeters. The body is approximately 98 percent water and resembles a gel. Most have on the sides a couple of tentacles to capture and retain prey. Assualtive kinds of capture food by mouth. They are predators, they feed on zooplankton. In Russian waters of the sea of Japan found four planktonic and one benthic species.