Distribution and diversity of fishes and lampreys in Transylvania (Romania): a complete survey and suggestions for new protected areas.

Autor: Nagy AA; Evolutionary Ecology Group, 3B Centre for Systems Biology, Biodiversity and Bioresources, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Clinicilor street 5-7, RO-400006 Cluj-Napoca, Romania.; Milvus Group Bird and Nature Protection Association, Crinului street 22, RO-540343 Târgu Mureș, Romania., Erős N; Evolutionary Ecology Group, 3B Centre for Systems Biology, Biodiversity and Bioresources, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Clinicilor street 5-7, RO-400006 Cluj-Napoca, Romania.; Institute of Aquatic Ecology, Centre for Ecological Research, Bem square 18/C, H-4026 Debrecen, Hungary., Imecs I; Department of Freshwater Fish Ecology, Hungarian University of Agricultural and Life Sciences, H-2100 Gödöllő, Hungary., Bóné G; Milvus Group Bird and Nature Protection Association, Crinului street 22, RO-540343 Târgu Mureș, Romania.; Department of Evolutionary Zoology and Human Biology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary., Fülöp A; Evolutionary Ecology Group, 3B Centre for Systems Biology, Biodiversity and Bioresources, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Clinicilor street 5-7, RO-400006 Cluj-Napoca, Romania.; Department of Evolutionary Zoology and Human Biology, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary., Pap PL; Evolutionary Ecology Group, 3B Centre for Systems Biology, Biodiversity and Bioresources, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Clinicilor street 5-7, RO-400006 Cluj-Napoca, Romania.
Jazyk: angličtina
Zdroj: ZooKeys [Zookeys] 2023 Jun 13; Vol. 1166, pp. 351-373. Date of Electronic Publication: 2023 Jun 13 (Print Publication: 2023).
DOI: 10.3897/zookeys.1166.102854
Abstrakt: Freshwater fishes are in a serious state of decline across the world, making them one of the most threatened groups of vertebrates. The Danube River catchment area in Europe holds the richest freshwater fish community, but our knowledge of the current distribution of these species is limited. Transylvania, the largest region of Romania, is one of the important tributaries of the Danube, from where 77 fish and two lamprey species were recorded until now. Despite this large diversity of freshwater fishes, there is a lack of systematic survey of the fish fauna in this region for the past 50 years. In this study, we present data on the occurrence and distribution of fishes and lampreys collected in Transylvania from 2007 to 2022. This data covers 43% of Romania's surface and includes all major rivers from Transylvania. 65 species of fish and three species of lampreys are recorded, and an additional nine fish species are also reported based on information from competent people. Of the 77 fish and lamprey species recorded 19 (24.7%) are non-native, although their relative abundance was low (5.1%) compared to other similar regions in Europe. The first records of Eudontomyzonmariae , Neogobiusmelanostomus , Piaractusbrachypomus , Pygocentrusnattereri , and Salvelinusalpinus in Transylvanian rivers are presented, as well as the first record of Cobitiselongata outside the Nera River basin (from the Caraș River) and the detection of three new populations of the vulnerable Umbrakrameri . Data on changes in distribution that have occurred since the last comprehensive survey 50 years ago are also provided and the importance of our results in conservation planning are discussed, including the designation of new protected areas for freshwater bodies and the compilation of the Romanian Red List of fishes.
Competing Interests: No conflict of interest was declared.
(András Attila Nagy, Nándor Erős, István Imecs, Gábor Bóné, Attila Fülöp, Péter László Pap.)
Databáze: MEDLINE
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