Naslov
The metaphyton-associated invertebrates of the Lake Sakadaš (Kopački rit Nature Park, Croatia)

Autori
Vidaković, Jasna ; Bogut, Irella ; Mihaljević, Melita ; Stević, Filip ; Palijan, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik = Proceedings / Treći hrvatski mikrobiološki kongres s međunarodnim sudjelovanjem, Poreč, 4.-7. listopada 2004. / Balenović, Mirta ; Wittner, Velimir - Zagreb : Hrvatsko mikrobiološko društvo, 2004, 163-163

Skup
Treći hrvatski mikrobiološki kongres s međunarodnim sudjelovanjem

Mjesto i datum
Poreč, Hrvatska, 04.10.2004. - 07.10.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
metaphyton; invertebrates; Lake Sakadaš

Sažetak
The growth of metaphyton which consisted of mainly three types of filamentous green algae: Spirogyra sp. Mougeotia sp. and Zygnema sp., developed at the eulittoral zone of Lake Sakadaš (Kopački rit Nature Park, Croatia) in the second half of May 2004, when the water-level start to increased, as well as air and water temperature. These filamentous algae came to the surface and became visible as slimy green masses, which looked distasteful, and indicated eutrophic water which is rich in nutrients. The presence of metaphyton disrupted the physical, chemical and biological conditions of freshwater habitats, so the monitoring of this appearance is very important for the entire ecosystem. The aggregations of filamentous algae are usually short-term, but once the metaphyton establishes, it may function as a macrophytes, thereby increasing surface area for bacterial, algal and invertebrate colonisation. The preliminary analysis included only the qualitative composition of the metaphyton-associated fauna, because of the difficulties in adequate processing metaphyton for quantitative analysis. Hydrophilidae (Coleoptera) larvae and Chironomidae (Diptera) larvae and pupae, Oligochaeta (Stylaria lacustris, Naididae), Nematoda, Cladocera (Daphnia pulex) with high abundance of ephippies, Copepoda (Cyclops sp.), Tardigrada, Ostracoda and Rotatoria were found in metaphyton samples. These organisms find good feeding conditions in metaphytic habitat - a large amount of detrital food particles and algae are trapped by filamentous green algae. And at the same time, the metaphyton represents a refuge from their predators.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA