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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.
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.
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.
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The wels is the largest freshwater fish in Europe and Western Asia, only exceeded by the anadromous Atlantic and beluga sturgeon. Most adult wels catfish are about 1.3–1.6 m (4 ft 3 in – 5 ft 3 in) long; fish longer than 2 m (6 ft 7 in) are a rarity.
The gilt-head bream (Sparus aurata), also known as the gilthead, gilt-head seabream or silver seabream, is a species of marine ray-finned fish belonging to the family Sparidae, the seabreams or porgies. This fish is found in the Eastern Atlantic and the Mediterranean. It is a highly esteemed food fish and an important species in aquaculture.
Sarda is a genus of medium-sized, predatory ray-finned fish in the family Scombridae, and belonging to the tribe Sardini, more commonly called the bonito tribe. There are four species which comprise the genus Sarda. One of those species, the Pacific bonito, is further divided into two subspecies.
Beloniformes / ˈ b ɛ l ə n ɪ m ɪ f ɔːr m iː z / is an order composed of six families (and about 264 species) of freshwater and marine ray-finned fish: Adrianichthyidae (ricefish and medakas) Belonidae (needlefish) Exocoetidae (flyingfishes) Hemiramphidae (halfbeaks) Scomberesocidae (sauries) Zenarchopteridae (viviparous halfbeaks) [2]