The occurrence of mayfly (Ephemeroptera) larvae along the river Someş/Szamos
The distribution of mayfly (Ephemeroptera) larvae along the river Some? was studied from its spring to its mouth. We have found 18 species belonging to 4 different families. Knowing their density the collected mayfly species can be used as indicators of the water quality. The biodiversity (calculate...
Elmentve itt :
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| Dokumentumtípus: | Könyv része |
| Megjelent: |
1999
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| Sorozat: | Tiscia monograph series
The Somes/Szamos river valley : a study of the geography, hydrobiology and ecology of the river system and its environment |
| Kulcsszavak: | Szamos folyó - ökológia |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/10173 |
| Tartalmi kivonat: | The distribution of mayfly (Ephemeroptera) larvae along the river Some? was studied from its spring to its mouth. We have found 18 species belonging to 4 different families. Knowing their density the collected mayfly species can be used as indicators of the water quality. The biodiversity (calculated with Shannon-Wiener formula) reached the maximum value (HS=I,502) at the first sampling point of the Some?ul Mare/Nagy Szamos (6 SM1). According to the lower biodiversity of mayfly larvae the river was very polluted downstream of big cities (Beclean. Násáud. Dej, Satu Mare). |
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| Terjedelem/Fizikai jellemzők: | 203-206 |
| ISSN: | 1418-0448 |