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Journal Info

Title: Studia Universitatis Vasile Goldis, Seria Stiintele Vietii (Life Sciences Series)
Abbreviated title: Studia Univ. VG, SSV
Publisher: "Vasile Goldis" University Press
Owner: Western University "Vasile Goldis" Arad, Romania
ISSN: 1584-2363
e-ISSN: 1842-7863
ISSN-L: 1584-2363

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Ecological and nature conservational evaluation of the fish fauna of the Lăpuş river Print E-mail
Written by Wilhelm S., Wilhelm A.S., Ardelean G.   
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Article Title: Ecological and nature conservational evaluation of the fish fauna of the Lăpuş river
Authors: Wilhelm S., Wilhelm A.S., Ardelean G.
Affiliation: Highschool Săcueni,
Town hall Săcueni,
”Vasile Goldiş” University, Arad
Abstract: The fish population of the Lăpuş river was assessed in 2003. Later studies was assessed in 2009 in the Zazar river basin, tributary of the Lăpuş river, this occasion we have supplemented the list with two more species (Eudontomyzon danfordi and Perca fluviatilis). We have ranked the found species into ecological and reproductional guilds and grouped them according to their origin. Based on the criteria of Bănărescu we have determined the Romanian spreading of the different species, the development of their spreading and frequency and their ecological state. We have tried to apply the fish ranking method of Guti based on their endangerment onto the Romanian conditions. Based on this we have calculated their score of nature conservational value. In order to characterize the fish communities, we have used the values suggested by Pricope et al. According to this we have calculated the abundancy, frequency, stability and dominancy of the different species, and we have estimated their significance in the whole area. The ecological quality of the ichtiocenosis has been determined by calculating the Shannon-Wiener diversity index, and the modified index suggested by Salyi. Based on the scores suggested by Guti we have calculated the absolute and relative nature conservational value of the river.
Keywords: ecological and reproductional guilds, spreading, abundancy, frequency, dominancy, significance, ecological quality, absolute and relative nature conservational value
*Correspondence: Wilhelm Sandor, 417435 Săcueni, Pţa. Libertăţii 25/7, Tel.: 0744-789931, Email: sandor.wilhelm