Structural and functional responses of periphyton and macroinvertebrate communities to ferric Fe, Cu, and Zn in stream mesocosms

2018 ◽  
Vol 37 (5) ◽  
pp. 1320-1329 ◽  
Author(s):  
Pete Cadmus ◽  
Helena Guasch ◽  
Adam T. Herdrich ◽  
Berta Bonet ◽  
Gemma Urrea ◽  
...  
Keyword(s):  
Macroinvertebrate Communities ◽  
Functional Responses ◽  
Stream Mesocosms ◽  
Cu And Zn

scholarly journals Structural and functional responses of benthic invertebrates to imidacloprid in outdoor stream mesocosms

2009 ◽  
Vol 157 (8-9) ◽  
pp. 2328-2334 ◽  
Author(s):  
J.L.T. Pestana ◽  
A.C. Alexander ◽  
J.M. Culp ◽  
D.J. Baird ◽  
A.J. Cessna ◽  
...  
Keyword(s):  
Benthic Invertebrates ◽  
Functional Responses ◽  
Stream Mesocosms

scholarly journals Effects of chlorpyrifos on macroinvertebrate communities in coastal stream mesocosms

Ecotoxicology ◽  
2007 ◽  
Vol 17 (3) ◽  
pp. 173-180 ◽  
Author(s):  
Anne Colville ◽  
Peter Jones ◽  
Fleur Pablo ◽  
Frederick Krassoi ◽  
Grant Hose ◽  
...  
Keyword(s):  
Macroinvertebrate Communities ◽  
Stream Mesocosms

Benthic Macroinvertebrates Modify Copper and Zinc Partitioning in Freshwater–Sediment Microcosms

1985 ◽  
Vol 42 (9) ◽  
pp. 1465-1473 ◽  
Author(s):  
G. Krantzberg ◽  
P. M. Stokes
Keyword(s):  
Water Column ◽  
Benthic Macroinvertebrates ◽  
Benthic Community ◽  
Lake Ontario ◽  
Freshwater Sediment ◽  
Macroinvertebrate Communities ◽  
Burrowing Activity ◽  
Tubificid Worms ◽  
Cu And Zn

The effects of bioturbation on metal dynamics in freshwater–sediment systems were examined. In general, benthic macroinvertebrates caused significant changes in Cu and Zn partitioning among physicochemical forms in the sediment. The proportion of cation-exchangeable and specifically adsorbed Cu observed in Chub Lake (Muskoka–Haliburton) microcosms colonized by chironomids and chaoborids was greater than that for uncolonized sediment. The same relationship held for Cu in Lohi Lake (Sudbury) microcosms supporting a similar benthic community and for Cu and Zn in Port Credit (Lake Ontario) sediments inhabited by tubificids. The ability of tubificid worms to increase sediment Eh was recorded and related to Cu and Zn dynamics. We conclude that macroinvertebrate communities have the potential to increase metal concentrations in the water column, particularly during short episodes of high burrowing activity, and that in situ studies are warranted to verify this potentiality.

Impact of Heavy Metals on Insect Communities in Streams: A Comparison of Observational and Experimental Results

1988 ◽  
Vol 45 (11) ◽  
pp. 2017-2025 ◽  
Author(s):  
Williams H. Clements ◽  
Donald S. Cherry ◽  
John Cairns Jr.
Keyword(s):  
Heavy Metals ◽  
Benthic Communities ◽  
Macroinvertebrate Community ◽  
Experimental Results ◽  
Macroinvertebrate Communities ◽  
Insect Communities ◽  
Copper And Zinc ◽  
Stream Mesocosms ◽  
Clinch River ◽  
Number Of Individuals

This research compares effects of heavy metals on macroinvertebrate communities in outdoor experimental streams with those observed at impacted field sites. Natural assemblages of aquatic macroinvertebrates were established on substrate-filled trays which were then transferred to outdoor stream mesocosms. Exposure of these communities to low levels of copper and zinc (target concentration = 12 μg/L) significantly reduced the number of taxa, number of individuals, and abundance of most dominant taxa within 4 d. After 10 d, control streams were dominated by Ephemeroptera and Tanytarsini chironomids, whereas treated streams were dominated by Hydropsychidae and Orthocladiini. Responses of benthic communities to metals observed at the Clinch River (Russell Co., Virginia), a system impacted by copper and zinc, were similar to those in experimental streams. Ephemeroptera and Tanytarsini, which comprised 38–46% of the macroinvertebrate community at upstream reference stations, were significantly reduced at all effluent sites. As in treated experimental streams, impacted stations were dominated by Hydropsychidae and Orthocladiini. The similarity of our experimental results to those obtained from Clinch River field sites suggests that outdoor stream mesocosms may be employed to predict macroinvertebrate community responses to heavy metals.

scholarly journals Testing effects of pesticides on macroinvertebrate communities in outdoor stream mesocosms using carbaryl as example test item

2019 ◽  
Vol 31 (1) ◽  
Author(s):  
Liesa-Kristin Beuter ◽  
László Dören ◽  
Udo Hommen ◽  
Matthias Kotthoff ◽  
Christoph Schäfers ◽  
...  
Keyword(s):  
Test Item ◽  
Macroinvertebrate Communities ◽  
Testing Effects ◽  
Stream Mesocosms

scholarly journals Taxonomic and Functional Responses of Benthic Macroinvertebrate Communities to Hydrological and Water Quality Variations in a Heavily Regulated River

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1478 ◽  
Author(s):  
Alex Laini ◽  
Pierluigi Viaroli ◽  
Rossano Bolpagni ◽  
Tommaso Cancellario ◽  
Erica Racchetti ◽  
...  
Keyword(s):  
Water Quality ◽  
Multiple Stressors ◽  
Random Effect ◽  
Regulated River ◽  
Macroinvertebrate Communities ◽  
Functional Responses ◽  
Short Term ◽  
Mixed Effect ◽  
River Stretch ◽  
Physico Chemical

Aquatic macroinvertebrates are frequently used to evaluate river system conditions and restoration project performance. A better understanding of macroinvertebrate community responses to multiple stressors is a primary challenge for river science. In this paper, macroinvertebrate responses to hydrological and water quality variability were studied in the regulated Oglio River (northern Italy). We hypothesized that in regulated rivers the hydrological, rather than the physico-chemical conditions, would affect macroinvertebrate communities and biomonitoring tools (taxonomic metrics and functional indices). Repeated sampling (six times a year) was performed at four sites downstream of four dams in a 30 km river stretch during 2014 and 2015. Data were analysed using a linear mixed effect framework, to take into account random variation due to site and sampling date, and with multivariate analysis to track changes in community structure. A total of 69 families and 134,693 organisms were identified. The investigated metrics were mainly affected by the coefficient of variation of discharge, minimum discharge, ammonium, and temperature. The short-term dynamics of hydrological and physico-chemical variables were generally less important than the overall random effects as drivers of macroinvertebrate-based metrics. However, the relevance of a random effect (site, time, their interaction) differed depending on the biological metrics analysed. Understanding potential differences in response to short term and short stretch conditions would benefit biomonitoring and restoration procedures in both regulated and natural rivers.

scholarly journals Evidence of Taxonomic and Functional Recovery of Macroinvertebrate Communities Following River Restoration

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2239
Author(s):  
Judy England ◽  
Chloe Hayes ◽  
James White ◽  
Tim Johns
Keyword(s):  
River Restoration ◽  
Ecological Integrity ◽  
Benthic Invertebrate ◽  
Macroinvertebrate Communities ◽  
Functional Responses ◽  
Biodiversity Crisis ◽  
Channel Narrowing ◽  
Functional Richness ◽  
Restoration Strategies ◽  
Physical Changes

River ecosystems have been heavily degraded globally due to channel hydromorphological modifications or alterations to catchment-wide processes. Restoration actions aimed at addressing these changes and restoring ecological integrity are increasing, but evidence of the effectiveness of these actions is variable. Using a rare 7-year before-after-control-impact (BACI) study of restoration of a lowland groundwater-fed river in England, UK, we explore changes in the macroinvertebrate community following the removal of impoundments and channel narrowing to aid restoration of physical processes. Restoration activity prompted significant taxonomic and functional responses of benthic invertebrate communities in the 4 years post-restoration. Specifically, significant gains in taxonomic and functional richness were evident following restoration, although corresponding evenness and diversity measures did not mirror these trends. Restoration activities prompted a shift to more rheophilic taxa and associated traits matching the physical changes to the channel and habitat composition. Temporal changes were clearer for taxonomic compositions compared to the functional properties of macroinvertebrate communities, indicating a functional redundancy effect of new colonists inhabiting restored reaches following restoration. The results highlight the value of long-term BACI studies in river restoration assessments, as well as project appraisals incorporating both taxonomic and functional observations. We highlight the urgent need of such studies to provide evidence to inform effective river restoration strategies to address future changes such as adaption to climate change and the biodiversity crisis.

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