Macrozoobenthic community structure and dynamics in Cerna River (western Romania)
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 1
Abstract
In order to determine water quality in Cerna River, researchers carried out analyses into the structure and dynamics of benthic macroinvertebrates communities as well as into the physical-chemical factors. 12 Groups of macroinvertebrates were identified. Density, abundance and frequency values recorded for benthic communities varied according to the physical-chemical conditions specific to each sample collecting station. Researchers noticed a direct influence of Băile Herculane town and dam upon the community submitted to study, the maximum density and percentage numerical abundance being established for Oligochaeta and Diptera, benthic groups tolerant to changes in aquatic ecosystems qualitative parameters. The community of organisms including Ephemeroptera, Trichoptera, Plecoptera, Odonata and Coleoptera was characterized by a decrease in density and abundance values upstream -downstream as water quality is more and more degraded. This deterioration is also emphasized by the biotic index EPT/Ch values.
Authors and Affiliations
Cosmina-Simona Răescu, Mălina Dumbravă-Dodoacă, Milca Petrovici
Keywords
Related Articles
- EP ID EP145271
- DOI -
- Views 88
- Downloads 0
Effect of different feed types on growth, spawning, hatching and larval survival in angel fish (Pterophyllum scalare Lictenstein, 1823)
In this study effects of commercial extruder diet (T1), earthworm (T2), 50 % commercial extruder diet + 50 % earthworm (T3) on growth, spawning, hatching and larval survival of angel fish (average weight 4.06 g) (Pteroph...
Determination of seasonal skeletal growth layers in Porites lutea colonies from Teluk Nyior reefs, Langkawi Island, Malaysia
This study includes seasonal layer study of Porites lutea using combination of alizarin staining and UV illumination methods and the correlation with climate data. The growth layers were recognized by using alizarin stai...
Nursery production of hatchery-reared milkfish, Chanos chanos in earthen pond
To ensure stable supply of milkfish, Chanos chanos fingerlings for stocking in ponds or cages where they will be reared until harvestable size, nursery production of hatchery-reared milkfish fry in earthen ponds and fed...
Lower Timiş River (Banat, Romania) - Special area for conservation (Natura 2000 site) for Gobio albipinnatus Lukasch, 1933
Present paper aims to bring arguments in favour of Natura 2000 site proposing - Lower Timiş River, for Gobio albipinnatus species conservation. These arguments rely on the author’s original actual data, about Gobio albip...
Production of protein hydrolysates from fish byproduct prepared by enzymatic hydrolysis
The objective of this research was to study the production of fish protein hydrolysate (FPH) from fish by-product prepared by enzymatic hydrolysis. Fish by-product were prepared using Alcalase and Flavourzyme enzyme and...