The use of benthic macroinvertebrate families for river quality assessment in Lithuania

2012 ◽  
Vol 7 (4) ◽  
pp. 741-758 ◽  
Author(s):  
Giedrė Višinskienė ◽  
Rasa Bernotienė
Keyword(s):  
Quality Assessment ◽  
Ecological Status ◽  
Estimation Method ◽  
Environmental Parameters ◽  
Biotic Index ◽  
Benthic Macroinvertebrate ◽  
Accurate Estimation ◽  
Macroinvertebrate Communities ◽  
River Quality ◽  
Lithuanian Rivers

AbstractThe aim of this study was to evaluate the influence of environmental factors on the distribution of macroinvertebrate taxa in different sized lowland Lithuanian rivers. A secondary aim was to assess ecological river quality and to determine the most suitable biotic index. A final aim was to determine the most appropriate macroinvertebrate families for river quality assessment in Lithuania. Species composition and quantitative characteristics of benthic macroinvertebrate communities have been investigated using standard kick-sampling method by a standard hand net in 24 different river sites in spring. Physical and chemical environmental parameters were measured in the same study site as the macroinvertebrate sampling. A total of 186 taxa representing 66 families or higher taxonomic ranks of benthic macroinvertebrates have been identified. Water temperature and current velocity influenced the highest number of ivestigated families. Seven of the most tolerant and eleven of the most sensitive macroinvertebrate taxa for hydrochemical parameters related with organic pollution were determined. The DSFI method was founded to be the best index for assessment of ecological status for Lithuanian rivers until more accurate estimation method will be created.

scholarly journals Biocontamination of benthic macroinvertebrate assemblages in Croatian major rivers and effects on ecological quality assessment

2019 ◽  
pp. 11 ◽  
Author(s):  
Renata Ćuk ◽  
Marko Miliša ◽  
Ana Atanacković ◽  
Svjetlana Dekić ◽  
Luka Blažeković ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Negative Correlation ◽  
Benthic Macroinvertebrates ◽  
Ecological Status ◽  
Environmental Parameters ◽  
Large Rivers ◽  
Benthic Macroinvertebrate ◽  
Ecological Quality ◽  
Biological Metrics ◽  
Macroinvertebrate Species

We studied the composition of non-indigenous macroinvertebrate species (NIMS) and biocontamination level in four major large Croatian rivers (the Danube, Sava, Drava and Mura) to establish which environmental parameters are the most important for the composition of NIMS assemblages and to determine how NIMS affect biological metrics regularly used in ecological quality assessment. We sampled benthic macroinvertebrates at 48 sites (44 lotic + 4 lentic), and among 236 taxa, 21 NIMS were identified, of which 9 were widespread and abundant. Only 14.6% of sites exhibited no biocontamination, 18.7% exhibited low or moderate biocontamination and 66.7% exhibited high or severe biocontamination. Higher biocontamination in the Drava may be due to both the proximity to the Danube as the main source of NIMS and the existence of three large reservoirs. We found significantly negative correlation between the number of NIMS and native taxa. The significant correlations between biocontamination indices and tested biological metrics were as follows: negative with %EPT, EPT-S, BMWP and IBE AQEM, while positive with HR-SI. This indicates that at sites where NIMS are abundant and native taxa scarce, standard biological metrics could provide unreliable results and compromise the assessment of ecological status of large rivers.

scholarly journals A large-scale ecological assessment of Swiss rivers using environmental DNA for the monitoring of macroinvertebrates 

2021 ◽  
Vol 4 ◽  
Author(s):  
Jeanine Brantschen ◽  
Rosetta Blackman ◽  
Jean-Claude Walser ◽  
Florian Altermatt
Keyword(s):  
Random Forest ◽  
Community Composition ◽  
Large Scale ◽  
Anthropogenic Activities ◽  
Ecological Status ◽  
Environmental Dna ◽  
Biotic Index ◽  
Reference Database ◽  
Macroinvertebrate Communities ◽  
Monitoring Methods

Anthropogenic activities are changing the state of ecosystems worldwide, affecting community composition and often resulting in loss of biodiversity. Riverine ecosystems are among the most impacted ecosystems. Recording their current state with regular biomonitoring is important to assess the future trajectory of biodiversity. However, traditional monitoring methods for ecological assessments are costly and time-intense. Here, we compare environmental DNA (eDNA) to traditional kick-net sampling in a standardized framework of surface water quality assessment. We use surveys of macroinvertebrate communities to assess biodiversity and the biological state of riverine systems. Both methods were employed to monitor aquatic macroinvertebrate indicator groups at 92 sites across major Swiss river catchments. The eDNA data were taxonomically assigned using a customised reference database. All zero-radius Operational Taxonomic Units (zOTUs) mapping to one of the 142 traditionally used indicator taxon levels were used for subsequent diversity analyses (n = 205). At the site level, eDNA detected less indicator taxa than the kick-net method and alpha diversity correlated only weakly between the methods. However, the methods showed a strong congruence in the overall community composition (gamma diversity), as the same indicator groups were commonly detected. In order to set the community composition in relation to the biotic index, the ecological states of the sampling sites were predicted by a random forest approach. Using all zOTUs mapping to macroinvertebrate indicator groups (n = 693) as predictive features, the random forest models successfully predicted the ecological status of the sampled sites. The majority of the predictions (71%) resulted in the same classification like the kick-net based scores. Thus, the sampling of eDNA enabled the detection of indicator communities and provided valuable classifications of the ecological state, when combined with machine learning. Overall, eDNA based sampling has the potential to complement traditional surveys of macroinvertebrate communities in routine large-scale assessments in a non-invasive and scalable approach.

scholarly journals Benthic Macroinvertebrate Communities in the Northern Tributaries of the “Iron Gates” Gorge (Danube River)

2014 ◽  
Vol 16 (3) ◽  
pp. 151-164
Author(s):  
Angela Curtean-Bănăduc
Keyword(s):  
Ecological Status ◽  
Danube River ◽  
Longitudinal Profile ◽  
Benthic Macroinvertebrate ◽  
Macroinvertebrate Communities ◽  
Negative Effects ◽  
Invertebrate Communities ◽  
Structural Variability ◽  
Good Ecological Status ◽  
The Town

Abstract The paper presents the structure of the benthonic macro-invertebrates communities in the Berzasca, Sirinia, Liubcova, and Mraconia rivers. The results are based on quantitative benthos samples (95 samples), collected in July 2014 from 19 sampling stations within the study area. In longitudinal profile, the benthonic macro-invertebrate communities of the Sirinia, Liubcova and Berzasca rivers displays relatively large structural variability, while the communities of the Mraconia River displays smaller structural variability. The structure of the benthonic macro-invertebrate communities correlated with the biotope characteristics indicates the good ecological status of the analysed rivers, with the exception of the Berzasca River sector downstream of the town of Berzasca and immediately upstream of the Danube junction, a sector with moderate ecological status due to negative effects from man-made modifications in the lotic biotope of the sector.

scholarly journals Evaluasi Rehabilitasi Riparian Sungai Ranggeh dengan Indikator Komunitas Makrozoobenthos

2020 ◽  
Vol 5 (2) ◽  
pp. 105
Author(s):  
Jojok Sudarso ◽  
Imroatushshoolikhah ◽  
Aiman Ibrahim ◽  
Siti Aisyah ◽  
Laela Sari
Keyword(s):  
Benthic Macroinvertebrates ◽  
Environmental Parameters ◽  
Benthic Macroinvertebrate ◽  
Riparian Habitat ◽  
Macroinvertebrate Communities ◽  
Sampling Area ◽  
Biological Metrics ◽  
Habitat Rehabilitation ◽  
Conductivity Parameter ◽  
The Impact

<strong>Evaluation of Riparian Rehabilitation in River River Usingthe Macrozoobenthos Community Indicator. </strong>Macrozoobenthos organism is one of aquatic biota which is often used to assess the ecosystems health of river.The evaluation of riparian habitat rehabilitation using benthic macroinvertebrates has been commonly used in many countries. The purposes of this study were to evaluate the impact of Ranggeh river riparian rehabilitation and to determine environmental parameters that influenced benthic macroinvertebrate communities in Ranggeh River. This research was conductedfrom February to September 2019. Benthic macroinvertebrate Benthic macroinvertebrates, river, evaluation, EPT, rehabilitationsamples were collected using Hess Sampler in a sampling area of 0.2 m<sup>2</sup>. This evaluation was carried out after two months since the rehabilitation of riparian habitat completed. The results show that rehabilitation of the riparian habitat has changed the community, in the aspects of biological metrics of taxa number, abundance, and taxa numbersof Ephemeroptera, Plecoptera, and Trichoptera (EPT). Furthermore, the taxa number and EPT metrics increased after habitat rehabilitation, however the abundance decreased slightly. In addition, the taxa number metric was positively correlated with conductivity parameter (r = 0.8), but negatively correlatedto turbidity (r = -0.91) and pH (r = -0.77). Meanwhile, the EPT metric was negatively correlated with turbidity parameters (r = -0.76) and  %<em>embeddedness</em> (r = -0.94). The total abundance metric was not sensitive to the parameters measured in this study. Meanwhile, biological metrics for taxa number and EPT can be used to assess rehabilitation success of river ecosystem habitats

Development of tools for ecological quality assessment in the Polish marine areas according to the Water Framework Directive. Part IV — preliminary assessment

2012 ◽  
Vol 41 (3) ◽  
pp. 1-10 ◽  
Author(s):  
Andrzej Osowiecki ◽  
Elżbieta Łysiak-Pastuszak ◽  
Lidia Kruk-Dowgiałło ◽  
Magdalena Błeńska ◽  
Paulina Brzeska ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Water Framework Directive ◽  
Ecological Status ◽  
Biotic Index ◽  
Preliminary Assessment ◽  
Transitional Waters ◽  
Assessment Index ◽  
Coastal And Transitional Waters ◽  
Marine Areas ◽  
Good Ecological Status

AbstractA set of classification methods was developed for the Polish coastal and transitional waters regarding the biological quality elements — phytoplankton, macrophytes and macroinvertebrates as required by the EU Water Framework Directive. Mean summer chlorophyll-a and total summer biomass of phytoplankton were proposed as indicators in the phytoplankton assessment. Macrophytes were assessed by the Macrophyte Quality Assessment Index, including biomass and percent bottom coverage of the selected taxa. Macroinvertebrate assessment was based on a biotic index comprising abundance, dominance structure, taxonomical richness and species sensitivity/tolerance to eutrophication. A preliminary assessment of the ecological status revealed that the coastal and transitional waters failed to reach a ‘good’ ecological status.

scholarly journals Timiş River (Banat, Romania) Benthic Macroinvertebrate Communities Structure Spatial Dinamic

2013 ◽  
Vol 15 (3) ◽  
pp. 123-132
Author(s):  
Angela Curtean-Bănăduc ◽  
Adina Nicoleta Farcaş
Keyword(s):  
Spatial Structure ◽  
Benthic Macroinvertebrates ◽  
Environmental Parameters ◽  
Benthic Macroinvertebrate ◽  
Macroinvertebrate Communities ◽  
Substrate Type ◽  
Natural Conditions ◽  
Physico Chemical ◽  
River Danube ◽  
Correlation With Environmental Parameters

ABSTRACT This study presents the description of the structure of benthic macroinvertebrate communities of the Timiș River (Danube Watershed) in correlation with environmental parameters. The results are based on quantitative benthic macroinvertebrates (105 samples) taken in 2011 (June-September) from 21 stations of the the Timiş River, situate between its sources and the Romanian-Serbian border (241 km). The assessed biotope variables were: altitude, slope, riverbed width, depth, substratum types, channel modification and water physico-chemical caracteristics. The results of the study reveal that the spatial structure of benthic macroinvertebrates is induced by the substrate type, by the minor riverbed modifications in comparison with the natural conditions and the quantities of oxidable matters in the water.

A nutrient biotic index (NBI) for use with benthic macroinvertebrate communities

2007 ◽  
Vol 7 (2) ◽  
pp. 371-386 ◽  
Author(s):  
Alexander J. Smith ◽  
Robert W. Bode ◽  
Gary S. Kleppel
Keyword(s):  
Biotic Index ◽  
Benthic Macroinvertebrate ◽  
Macroinvertebrate Communities
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