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001-es BibID:	BIBFORM120829
Első szerző:	Tóth Richárd
Cím:	A tiszai ingola (Eudontomyzon danfordi Regan, 1911) állományainak felmérése és élőhelyeinek ökológiai állapotértékelése a Tisza magyarországi vízgyűjtő területén / Tóth Richárd, Bodnár Bálint, Somogyi Dóra, Nyeste Krisztián, Antal László
Dátum:	2022
ISSN:	1789-1329
Megjegyzések:	Investigation of the populations of the Carpathian brook lamprey (Eudontomyzon danfordi Regan, 1911) and the ecological assessment of its habitat in the Hungarian part of the Tisza River Basin The Carpathian brook lamprey (Eudontomyzon danfordi) is the endemic species of the water system of the Tisza River and, therefore, represents outstanding conservational value in the Carpathian Basin. As a specialist rheophilic species, the Carpathian brook lamprey is a sensitive organism to the changing condition of its habitat. Several forms of menace factors have been distinguished during the last years, which are divided into two main groups: the anthropogenic effects, like water pollution, hydro-technical modifications, etc.; and the environmental effects, like climate change, desiccation, spreading of invasive species, a newly described parasite species, etc. Altogether, these factors can lead to the alteration of the natural habitats and result in the decrease or local extinction of the lamprey populations. Our investigation aimed to assess the inland populations of the Carpathian brook lamprey and to reveal all of those menace factors which can lead to the decrease of its population. We investigated the fish fauna in the case of 13 watercourses, which are divided into 4 larger watersheds (Bódva, Hernád, Bodrog basins, and the section of the Upper-Tisza region). We managed to confirm the presence of the Carpathian brook lamprey in 6 watercourses, which belonged to 3 of the observed regions. Only in the case of 3 waterbodies (Bózsva, Kemence-, Tohonya-creek) managed to justify different age groups of the species, which indicates the presence of an active, self-reproducing population. Over the several forms of water pollution, artificially constructed or naturally emerged dams, as well as the spreading of invasive species, a high abundance of predatory salmon species (native Salmo trutta and nonnative Oncorhynchus mykiss), and a newly described parasite forming a new threat for the lamprey. This parasite exists only within the population living in the Kemence-creek, but the effect of this parasite on the lampreys is not clear yet. Altogether, many menace factors are present along the Hungarian section of the Tisza River, which can be responsible for the decrease of this endemism in the Tisza River.
Tárgyszavak:	Természettudományok Biológiai tudományok magyar nyelvű folyóiratközlemény hazai lapban folyóiratcikk veszélyeztető tényezők élőhely degradáció kiszáradás EU VKI
Megjelenés:	Pisces Hungarici. - 16 (2022), p. 21-32. -
További szerzők:	Bodnár Bálint Somogyi Dóra (1996-) (hidrobiológus) Nyeste Krisztián József (1993-) (hidrobiológus) Antal László (1984-) (hidrobiológus, biológus-ökológus)
Pályázati támogatás:	GINOP_PLUSZ-2.1.1-21-2022-00245 GINOP TKP2021-NKTA-32 Egyéb RRF-2.3.1-21-2022-00008 Egyéb ÚNKP-22-1 Egyéb ÚNKP-22-3 Egyéb ÚNKP-22-4 Egyéb ÚNKP-22-5 Egyéb
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