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The Romanian barbel (Barbus petenyi) is a species of ray-finned fish in the genus Barbus. It occurs in the lower Danube basin of Bulgaria and Romania, as well as in several rivers of Bulgaria flowing into the Black Sea, such as Kamchiya. [2] The species is named after János Salamon Petényi. Males can reach 25 cm in length.
According to a systematic list of the Romanian vertebrate fauna, there are 732 species of vertebrates living in Romania. When grouped into classes, the largest number of these species are birds, with 382 species, followed by fish with 184. 110 of these species are mammals, 31 are reptiles, 20 are amphibians, while only four belong to the Cyclostomata class of jawless fish.
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A Romanian NGO, the Bucharest Institute of Biology, has worked to preserve this species with the financial support of the Regional Environmental Center. [5] Official estimates assert that no more than 15 specimens are living in a 1 km 2 (0.39 sq mi) area of the Vâlsan; observations as of October 2022 have confirmed 58 individuals.
Muraena is a genus of twelve species of large eels in the family Muraenidae.. This genus is common in the Mediterranean, and is abundantly represented in tropical and subtropical seas, especially in rocky parts or on coral reefs.
The huchen is endemic to the Danube basin in Europe where the remaining population is threatened primarily by river damming, resulting in habitat fragmentation and loss through river impoundment and disruption of the longitudinal continuity of rivers, cutting away fish from its spawning grounds, with overfishing and fisheries mismanagement as an additional issue in many areas.
The Spanish ling (Molva macrophthalma), also called the Mediterranean ling and even blue ling [1] [3] (though the latter is also used for Molva dypterygia), is a species of fish in the family Lotidae.