Naslov
Epiphytic metazoans on emergent macrophytes in oxbow lakes of the Krapina River, Croatia: differences related to plant species and limnological conditions

Autori
Špoljar, Maria ; Fressl, Jelena ; Dražina, Tvrtko ; Meseljević, Matija, Grčić, Zlatko

Izvornik
ACTA BOTANICA CROATICA (0365-0588) 71 (2012), 1; 125-138

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Emergent Macrophytes; Mentha; Iris; epiphytic metazoans; trophic state; water trasnparency; biotic interactions

Sažetak
This study investigated the structure of the epiphytic metazoans on emerged macrophytes in the littoral zone of two oxbow lakes with different trophic levels. Differences in the diversity and density of the epiphytic metazoans were analyzed in relation to plant architecture (simple or complex stems), food resources (algae and detritus) and water characteristics (transparency and derived trophic state index). Significant negative correlation was found between detritus on plants as food resource, and diversity and density of epiphytic metazoans, indicating on grazing of microphagous species. Rotifers dominated in diversity and density in epiphyton on all habitats. Total density of metazoans, rotifers and copepods in epiphyton were significantly higher on Mentha in mesotrophic lake than on Iris in eutrophic lake. We presume that macrophyte width and trophic state governed biotic interactions and consequently epiphytic assemblages stronger than the effect influenced by the macrophyte architecture. However, Mentha habitat showed slightly higher density and diversity of epiphytic metazoans in relation to Iris at same site, but these differences were not significant.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA