Composition, structure and seasonal dynamics of macrozoobenthos in the Temska and Visocica Rivers (Serbia)

• Published in: Archives of biological sciences 2005, Vol.57 (2), p.107-118
• Main Authors: Zivic, Ivana, Markovic, Z., Ilic, Jelena
• Format: Article
• Language: English
• Subjects: benthocenosis; diversity; macrozoobenthos; Serbia; similarity; Temska River; Visočica
• ISSN: 0354-4664; 1821-4339
• DOI: 10.2298/ABS0502107Z

We investigated macroozobenthos communities in the Temska and Visocica Rivers at 10 localities during the summer and autumn of 2001. In 46 samplings of quantitative and 10 of qualitative analysis, 101 taxa from 17 groups of macrozoobenthos are identified. The most diverse group is the order Trichophtera (28 species from nine families). Less diverse with (only one species) are Nematomorpha, Hirudinea, Odonata, and Megaloptera. At all of the chosen localities, the most common species are Elmis aenea (70.00%), Ancylus fluviatilis, and Baetis sp. (60.00%). All those localities on the Visocica and Temska Rivers are very similar. The index of similarity varies from 12.5% (between Vi0 and Te0) to 70.7% (between Te1 and Te2). In the Temska River the Shannon-Weaver diversity index varies from 1.80 (at Te3) to 2.45 (at Te0). In the Visocica River, the highest diversity of macrozoobenthos is at the Vi3 locality (2.59), the lowest at Vi0 (1.40). Less diverse macrozoobenthos communities are found at the Vi0 and Te3 localities. At the same time, these localities have the highest values of Simpson's index (0.35 and 0.34, respectively). Istrazivanja zajednice makrozoobentosa Temske reke i Visocice obavljena su u leto i jesen 2001. godine na 10 lokaliteta. U 46 proba za kvantitativnu i 10 za kvalitativnu analizu identifikovan je 101 takson iz 17 grupa makrozoobentosa. Najveceg diverziteta je red Trichoptera (28 vrsta iz 9 familija), a najoskudnijeg sastava (sa po jednom nadjenom vrstom) su Nematomorpha, Hirudinea, Odonata i Megaloptera. Na proucavanim lokalitetima najcesce se srecu vrste Elmis aenea (70.00%), Ancylus fluviatilis i Baetis sp. (po 60.00%). Istrazivane lokalitete Visocice i Temske reke odlikuje medjusobna slicnost od 12,5 % (izmedju lokaliteta Vi0 i Te0) do 70 % (izmedju lokaliteta Te1 i Te2). Na istrazivanim lokalitetima Temske reke, opseg variranja Shannon-Weaver-ovog indeksa diverziteta od 1,80 (na profilu Te3) do 2,45 (na Te0). U reci Visocici najveca je raznovrsnost makrozoobentosa na lokalitetu Vi3 - 2,59, a najmanja - 1,40 (na profilu Vi0). Najmanje raznovrsne zajednice makrozoobentosa su na lokalitetima Vi0 i Te3, gde su zabelezene najvise vrednosti Simpson-ovog indeksa (0,35 odnosno 0,34).