Benthic diatoms are group of organisms used as ecological indicators and considered to be valuabl... more Benthic diatoms are group of organisms used as ecological indicators and considered to be valuable in water quality assessment and monitoring. They are included in the European Union Water Framework Directive as one of the biological quality elements. In Serbia, national regulation in the field of parameters of status of groundwater involves diatom indices. The aim of this paper is to present application of benthic diatoms in water quality evaluation. For that purpose diatom indices (IPS, EPI-D, CEE and TDI) are calculated based on data from several small hilly streams in Eastern Serbia.
The aim of this paper is to present the distribution of the non-native species Hypania invalida (... more The aim of this paper is to present the distribution of the non-native species Hypania invalida (Polychaeta) within Serbian waters. In 1971, this species was found for the first time in the Danube and the Sava Rivers. According to our results, H. invalida is now widespread within potamon-type Rivers that are under the influence of hydromorphological alterations and exposed to intensive ship traffic. The distribution of this polychaete species, as well as some other alien aquatic invertebrate taxa Branchiura sowerbyi, Chinese pond mussel Anodonta woodiana, Spiny cheek crayfish Orconectes limosus and Asian clam Corbicula fluminea, further indicates that heavily modified waterways are suitable recipient areas for species introduction and adaptation.
The objective of this study is to present the comparable data on macroinvertebrate communities fr... more The objective of this study is to present the comparable data on macroinvertebrate communities from the natural bottom substrate along the middle and lower stretch of the Sava River. The study was carried out in September 2011 at eight sites of the sector between Zagreb -Martinska Ves and Belgrade – at the confluence into the Danube. The data presented could be used as baseline information for any future management of the main course of the Sava River.
This paper provides a list of recorded taxa and discusses the distribution and relative abundance... more This paper provides a list of recorded taxa and discusses the distribution and relative abundance of freshwater mussels (Bivalvia: Unionoida: Unionidae) along the Serbian stretch of the Tisa River. The objective of the work is to contribute to the general knowledge about the distribution and autecological characteristic of the species that could play a part in more effective assessment of ecological status. The results are especially interesting because Mollusca were found to be one of the principal components of the macroinvertebrate community in the lowland rivers. During the investigation six species of mussels were recorded. The most abundant and frequent species were found to be Unio pictorum (Linnaeus, 1758) and Unio tumidus (Philipsson, 1788).
Benthic diatoms are group of organisms used as ecological indicators and considered to be valuabl... more Benthic diatoms are group of organisms used as ecological indicators and considered to be valuable in water quality assessment and monitoring. They are included in the European Union Water Framework Directive as one of the biological quality elements. In Serbia, national regulation in the field of parameters of status of groundwater involves diatom indices. The aim of this paper is to present application of benthic diatoms in water quality evaluation. For that purpose diatom indices (IPS, EPI-D, CEE and TDI) are calculated based on data from several small hilly streams in Eastern Serbia.
The aim of this paper is to present the distribution of the non-native species Hypania invalida (... more The aim of this paper is to present the distribution of the non-native species Hypania invalida (Polychaeta) within Serbian waters. In 1971, this species was found for the first time in the Danube and the Sava Rivers. According to our results, H. invalida is now widespread within potamon-type Rivers that are under the influence of hydromorphological alterations and exposed to intensive ship traffic. The distribution of this polychaete species, as well as some other alien aquatic invertebrate taxa Branchiura sowerbyi, Chinese pond mussel Anodonta woodiana, Spiny cheek crayfish Orconectes limosus and Asian clam Corbicula fluminea, further indicates that heavily modified waterways are suitable recipient areas for species introduction and adaptation.
The objective of this study is to present the comparable data on macroinvertebrate communities fr... more The objective of this study is to present the comparable data on macroinvertebrate communities from the natural bottom substrate along the middle and lower stretch of the Sava River. The study was carried out in September 2011 at eight sites of the sector between Zagreb -Martinska Ves and Belgrade – at the confluence into the Danube. The data presented could be used as baseline information for any future management of the main course of the Sava River.
This paper provides a list of recorded taxa and discusses the distribution and relative abundance... more This paper provides a list of recorded taxa and discusses the distribution and relative abundance of freshwater mussels (Bivalvia: Unionoida: Unionidae) along the Serbian stretch of the Tisa River. The objective of the work is to contribute to the general knowledge about the distribution and autecological characteristic of the species that could play a part in more effective assessment of ecological status. The results are especially interesting because Mollusca were found to be one of the principal components of the macroinvertebrate community in the lowland rivers. During the investigation six species of mussels were recorded. The most abundant and frequent species were found to be Unio pictorum (Linnaeus, 1758) and Unio tumidus (Philipsson, 1788).
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