Hidrológiai Közlöny 1997 (77. évfolyam)

60 In llie Kisköre Reservoir, the reed (Pliragmites australis) and bulrush (Typha anguslifolia) dominate lile hydatophyton species, arid the saligot (Trapa natans) and Nymphoides peltata dominale tlie floaling helophyton organisms. The Rotatoria and Cladoccra faunae were exaniined in tlie makrophyla-slands. It was sliown that the species composition is riclier as opposed to the open water. In Ihe fauna of the exaniined aqualic sites there were organisnis found Ihat freely tnovcd in Uie water or aniong tiie makrophytes, oUiers live on the surface of leaf, makrophytes or crawl 011 the surface of makrophytes and eat, graze the algae of the biotekton. Ilié phenological transformation of the makrovegetalion has an iniluence on the seasonal changes in the fauna and diversity. Ili tlic aquatic sites of various makrophyta-stands, Uie number and percentage composition of species show departure in the dominant and subdominant elements (rom one another Tliere are alsó differences in llie fauna of Üie similar makrophyta-stands Üial can be found in the difTerent basins of reserv oir. lile makrophyta-biotekton complex plays an important role in tlic changes of water quality and in lhe nulriment circulatiOI1. lile plánt associations and subassocialions which are composed of difTerent species have large significance in the development of inosaic fauna and tlius in the coaservation of biodiversity, as well. TYPHA ANGUSTIFOLIA Poroszlói-medence Moina micnjra TRAPA NATANS Sarudi-medence Alona guttata CERATOPHYLLUM DEMERSUM Sarudimedence NYMPHOIDES PELTATA Sarudi-medence Chydonjs sphaericus eoyéb 1. ábra. Cladocera szerezetek %-os megoszlása a Kiskörei-tározó különböző növényállományok közötti víztereiben 2. ábra. A diverzitás szezonális alakulása a Kiskörei-tározó különböző növényállományok közötti víztereiben ROTATORIA DIVERSITÁS Poroszlói-medence (1995) CLADOCERA DIVERSITÁS Poroszlói-medence (1995) ROTATORIA DIVERSITÁS Sarudi-medence (1995) CLADOCERA DIVERSITÁS Sarudi-medence (1995) Nymphoides peltata Trapa natans Phragmltes australis Typha anguslifolia open water Typh Nympholdes peltata Trapa nalans Phragmites auslralts a anguslifolia open waler Nympholdes peltala Trapa natans Phragmites australis Typha anguslifolia open water Nympholdes pellata Trapa nalans Phragmlles austialis Typha angustifolia open water