La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Transport of seston in the karstic hydrosystem of the Plitvice Lakes (Croatia)
Auteurs :	Maria Spoljar, Auteur ; Biserka Primc-Habdija, Auteur ; Ivan Habdija, Auteur
Type de document :	Article
Dans :	Hydrobiologia (579 MAR 2007)
Article en page(s) :	199-209
Résumé :	Research into spatial and temporal variation in seston transport was carried out during the year 2000 on three reaches on the longitudinal profile of the karstic cascading system of the Plitvice Lakes in Croatia. The three investigated reaches were (i) a channel over a barrier with low gradient; (ii) flow through a deep lake; and (iii) a channel with cascades and a steep gradient. The aim of the study was to establish the influence of physiographical and hydrological differences of these reaches on the quality and quantity of seston transport and food resources in the seston. To calculate the seston transport, we measured: total suspended matter (TSM), particulate inorganic matter (PIM), particulate organic matter (POM), chlorophyll-a (chl-a), heterotrophic bacteria and discharge. The PIM contribution from TSM ranged between 60 and 90%, while the percentage of POM in TSM was the highest in summer and ranged from 33 to 46%. POM and discharge were significantly negatively correlated (r = -0.43, P

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