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Oligochaeta community of river Tisza [Serbia]: saprobiological water quality assessment
2006
Miljanovic, B. (Prirodno-matematicki fakultet, Kragujevac (Serbia). Institut za biologiju i ekologiju), E-mail: bane@ib.ns.ac.yu | Jurca, T. (Prirodno-matematicki fakultet, Kragujevac (Serbia). Institut za biologiju i ekologiju) | Pankov, N. (Prirodno-matematicki fakultet, Kragujevac (Serbia). Institut za biologiju i ekologiju) | Jovanovic, D. (Ministarstvo poljoprivrede, sumarstva i vodoprivrede Republike Srbije, Beograd (Serbia))
Recent surveys of river Tisza (Serbia) have shown that class Oligochaeta is commonly present as dominant member of benthic macroinvertebrate community. Knowing the fact that this class is very good indicator of organic upload in aquatic ecosystem, in this paper it is used for saprobiological water quality assessment of middle and lower stream of river Tisza in summer of 2002, 2004 and 2005. Results presented as saprobiological indices, showed that water quality of river Tisza (Serbia) was alfa-mesosaprobioc (the third class) during research period.
Afficher plus [+] Moins [-]Monitoring of the pelagic ecosystems of the Boka Kotorska Bay [Adriatic sea, Montenegro] using plankton indicators
2006
Vukanic, V. (Gimnazija, Kotor (Montenegro)), E-mail: v_vukanic@yahoo.com
During the study we recorded narrow margins between zooplankton distribution and the ecological characteristics of water in Bokakotorska Bay (Adriatic sea, Montenegro). Various species show different vulnerability to environment quality. Some are defined as indicators, with low tolerance for the ecological variation of environment, and their distribution is limited to the particular type of water masses within the sea. The limiting factors are different for various species, and their indicator status is determined by their distribution. The indicator type, based on monitoring of particular species, may define a biotope, with the help of statistical analyses that identify the main time and spacial behavior patterns of a species, and my allow future ecosystem changes to be anticipated. In this paper we paid particular attention to the indicator species Oithona nana (Giesbrecht).
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