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Kellar CR, Hassell KL, Long SM, Myers JH, Golding L, Rose G, Kumar A, Hoffmann AA, Pettigrove V. Ecological evidence links adverse biological effects to pesticide and metal contamination in an urban Australian watershed. J Appl Ecol 2014. [DOI: 10.1111/1365-2664.12211] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claudette R. Kellar
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
| | - Kathryn L. Hassell
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
| | - Sara M. Long
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
| | - Jackie H. Myers
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
| | - Lisa Golding
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
| | - Gavin Rose
- Agricultural Research Division; Agriculture Group; Department of Environment and Primary Industries (DEPI); Terrace 4; Ernest Jones Drive Macleod Vic. 3085 Australia
| | - Anupama Kumar
- Centre for Environmental Contaminants Research; CSIRO Land and Water; Private Bag No. 2 Glen Osmond SA 5064 Australia
| | - Ary A. Hoffmann
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
| | - Vincent Pettigrove
- Centre for Aquatic Pollution Identification and Management (CAPIM); Department of Zoology; The University of Melbourne; Parkville Vic. 3010 Australia
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202
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Szöcs E, Coring E, Bäthe J, Schäfer RB. Effects of anthropogenic salinization on biological traits and community composition of stream macroinvertebrates. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 468-469:943-949. [PMID: 24080419 DOI: 10.1016/j.scitotenv.2013.08.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 08/06/2013] [Accepted: 08/19/2013] [Indexed: 06/02/2023]
Abstract
Salinization of rivers resulting from industrial discharge or road-deicing can adversely affect macroinvertebrates. Trait-based approaches are a promising tool in ecological monitoring and may perform better than taxonomy-based approaches. However only little is known how and which biological traits are affected by salinization. We investigated the effects of anthropogenic salinization on macroinvertebrate communities and biological traits in the Werra River, Germany and compared the taxonomic and trait response. We found a change in macroinvertebrate community and trait composition. Communities at saline sites were characterized by the three exotic species Gammarus tigrinus, Apocorophium lacustre and Potamopyrgus antipodarum. The frequencies of trait modalities long life cycle duration, respiration by gill, ovoviviparity, shredder and multivoltinism were statistically significantly increased at saline sites. The trait-based ordination resulted in a higher explained variance than the taxonomy-based ordination, indicating a better performance of the trait-based approach, resulting in a better discrimination between saline and non-saline sites. Our results are in general agreement with other studies from Europe, indicating a trait convergence for saline streams, being dominated by the traits ovoviviparity and multivoltinism. Three further traits (respiration by gill, life cycle duration and shredders) responded strongly to salinization, but this may primarily be attributed to the dominance of a single invasive species, G. tigrinus, at the saline sites in the Werra River.
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Affiliation(s)
- Eduard Szöcs
- Institute for Environmental Sciences, University Koblenz-Landau, Fortstraße 7, 76829 Landau, Germany.
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203
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Macroinvertebrate Richness Importance in Coastal Tropical Streams of Esmeraldas (Ecuador) and Its Use and Implications in Environmental Management Procedures. INTERNATIONAL JOURNAL OF ECOLOGY 2014. [DOI: 10.1155/2014/253134] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study was aimed at determining the performance of some indices and community attributes frequently used to assess river quality and test the role of macroinvertebrate taxa richness as element of bioindication in several coastal tropical streams of western Esmeraldas (Ecuador). In addition, a macroinvertebrate taxon list of this region was provided for the first time. Thirteen sampled points distributed across nine streams were selected for this study and nineteen parameters and attributes of bioindication were tested. The differences between nonimpact and impact places were evaluated mainly using one-way analysis of variance. Jackknife 2 and Clench were used to estimate the regional richness and the quality of the inventory, respectively. Seventy taxa (principally genus and family) of the main groups of macroinvertebrates were collected. Measured richness and family richness were the best metric followed by Biological Monitoring Working Party/Colombia (BMWP/Col), Odonata richness, Shannon-Weiner, and EPT richness (Ephemeroptera + Plecoptera + Trichoptera) indices. Only a slight right trend (Ephemeroptera, Trichoptera, and Chironomidae attributes) or incorrect performances (Average Score Per Taxon (ASPT) and % EPT) were showed by frequently used metrics. Finally, several recommendations were made about taxonomic level used, the ranks of quality of taxa richness, and the effort-results relationship in the field of bioindication.
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204
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Dafforn KA, Baird DJ, Chariton AA, Sun MY, Brown MV, Simpson SL, Kelaher BP, Johnston EL. Faster, Higher and Stronger? The Pros and Cons of Molecular Faunal Data for Assessing Ecosystem Condition. ADV ECOL RES 2014. [DOI: 10.1016/b978-0-08-099970-8.00003-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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205
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Muñoz Gracia I, Sabater S. INTEGRATING CHEMICAL AND BIOLOGICAL STATUS ASSESSMENT: ASSEMBLING LINES OF EVIDENCE FOR THE EVALUATION OF RIVER ECOSYSTEM RISK. ACTA BIOLÓGICA COLOMBIANA 2013. [DOI: 10.15446/abc.v19n1.38461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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206
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Mondy CP, Usseglio-Polatera P. Using conditional tree forests and life history traits to assess specific risks of stream degradation under multiple pressure scenario. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 461-462:750-760. [PMID: 23774251 DOI: 10.1016/j.scitotenv.2013.05.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 05/15/2013] [Accepted: 05/22/2013] [Indexed: 06/02/2023]
Abstract
The full accomplishment of the European Water Framework Directive objectives has required from EU members three successive steps: (i) the evaluation of their water body ecological status, (ii) the risk assessment of different anthropogenic pressure categories and (iii) the implementation of appropriate management and restoration programs. We aimed at designing an innovative retrospective ecological risk assessment (ERA) tool working for most of the French wadeable rivers in a context of multiple anthropogenic pressures (step ii). This tool, including conditional tree forest (CTF) models, was built on combinations of benthic macroinvertebrate trait-based metrics for each of sixteen anthropogenic pressure categories. For eleven pressure categories, CTF models have given good impairment risk assessment (i.e. AUC≥0.70), even at moderate risk level and in a multi-pressure context. The four other models have provided poorer but promising results (AUC=0.67±0.02). Identifying the potential weight of individual anthropogenic pressures that lead to biotic assemblage impairment in streams under multiple pressure scenario, is a key step for managers to implement appropriate stream restoration programs. Simultaneously considering the whole complexity of bio-ecological adaptations within biotic assemblages subjected to human pressures provides a functional diagnostic tool both (i) ecologically relevant and (ii) efficient for ERA.
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Affiliation(s)
- Cédric P Mondy
- Eawag-Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland.
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207
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Carew ME, Pettigrove VJ, Metzeling L, Hoffmann AA. Environmental monitoring using next generation sequencing: rapid identification of macroinvertebrate bioindicator species. Front Zool 2013; 10:45. [PMID: 23919569 PMCID: PMC3750358 DOI: 10.1186/1742-9994-10-45] [Citation(s) in RCA: 153] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 06/05/2013] [Indexed: 11/25/2022] Open
Abstract
Introduction Invertebrate communities are central to many environmental monitoring programs. In freshwater ecosystems, aquatic macroinvertebrates are collected, identified and then used to infer ecosystem condition. Yet the key step of species identification is often not taken, as it requires a high level of taxonomic expertise, which is lacking in most organizations, or species cannot be identified as they are morphologically cryptic or represent little known groups. Identifying species using DNA sequences can overcome many of these issues; with the power of next generation sequencing (NGS), using DNA sequences for routine monitoring becomes feasible. Results In this study, we test if NGS can be used to identify species from field-collected samples in an important bioindicator group, the Chironomidae. We show that Cytochrome oxidase I (COI) and Cytochrome B (CytB) sequences provide accurate DNA barcodes for chironomid species. We then develop a NGS analysis pipeline to identifying species using megablast searches of high quality sequences generated using 454 pyrosequencing against comprehensive reference libraries of Sanger-sequenced voucher specimens. We find that 454 generated COI sequences successfully identified up to 96% of species in samples, but this increased up to 99% when combined with CytB sequences. Accurate identification depends on having at least five sequences for a species; below this level species not expected in samples were detected. Incorrect incorporation of some multiplex identifiers (MID’s) used to tag samples was a likely cause, and most errors could be detected when using MID tags on forward and reverse primers. We also found a strong quantitative relationship between the number of 454 sequences and individuals showing that it may be possible to estimate the abundance of species from 454 pyrosequencing data. Conclusions Next generation sequencing using two genes was successful for identifying chironomid species. However, when detecting species from 454 pyrosequencing data sets it was critical to include known individuals for quality control and to establish thresholds for detecting species. The NGS approach developed here can lead to routine species-level diagnostic monitoring of aquatic ecosystems.
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Affiliation(s)
- Melissa E Carew
- Department of Zoology, Victorian Centre for Aquatic Pollution Identification and Management (CAPIM), The University of Melbourne, Victoria 3010, Australia.
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208
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Armanini DG, Monk WA, Carter L, Cote D, Baird DJ. Towards generalised reference condition models for environmental assessment: a case study on rivers in Atlantic Canada. ENVIRONMENTAL MONITORING AND ASSESSMENT 2013; 185:6247-6259. [PMID: 23250724 PMCID: PMC3695687 DOI: 10.1007/s10661-012-3021-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Accepted: 11/21/2012] [Indexed: 06/01/2023]
Abstract
Evaluation of the ecological status of river sites in Canada is supported by building models using the reference condition approach. However, geography, data scarcity and inter-operability constraints have frustrated attempts to monitor national-scale status and trends. This issue is particularly true in Atlantic Canada, where no ecological assessment system is currently available. Here, we present a reference condition model based on the River Invertebrate Prediction and Classification System approach with regional-scale applicability. To achieve this, we used biological monitoring data collected from wadeable streams across Atlantic Canada together with freely available, nationally consistent geographic information system (GIS) environmental data layers. For the first time, we demonstrated that it is possible to use data generated from different studies, even when collected using different sampling methods, to generate a robust predictive model. This model was successfully generated and tested using GIS-based rather than local habitat variables and showed improved performance when compared to a null model. In addition, ecological quality ratio data derived from the model responded to observed stressors in a test dataset. Implications for future large-scale implementation of river biomonitoring using a standardised approach with global application are presented.
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Affiliation(s)
- D G Armanini
- Environment Canada @ Canadian Rivers Institute, Department of Biology, University of New Brunswick, 10 Bailey Drive, PO Box 4400, Fredericton, NB, E3B 5A3, Canada.
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209
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Tan X, Sheldon F, Bunn SE, Zhang Q. Using diatom indices for water quality assessment in a subtropical river, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:4164-4175. [PMID: 23247517 DOI: 10.1007/s11356-012-1343-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Accepted: 11/16/2012] [Indexed: 06/01/2023]
Abstract
Diatoms have been regularly used as bioindicators to assess water quality of surface waters. However, diatom-based indices developed for a specific geographic region may not be appropriate elsewhere. We sampled benthic diatom assemblages in the upper Han River, a subtropical river in China, to evaluate applicability of 14 diatom-based indices used worldwide for water quality assessment. A total of 194 taxa from 31 genera were identified in the dry season and 139 taxa from 23 genera in the wet season. During the dry season, significant relationships were found for all but one of the diatom-based indices (Index Diatom Artois-Picardie) with one or more physical and chemical variables including nutrients and ion concentrations in river waters. The Biological Diatom Index (IBD) and diatom-based eutrophication/pollution index (EPI-D) were strongly related to trophic status and ionic content, while Watanabe's Index was related to organic pollution and conductivity. Yet, the diatom indices showed weak relationships with physical and chemical variables during the wet season. It suggests that diatom-based indices developed in Europe can be applied with confidence as bioindicators of water quality in subtropical rivers of China, at least during base-flow conditions.
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Affiliation(s)
- Xiang Tan
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, the Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China
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210
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Zhou X, Li Y, Liu S, Yang Q, Su X, Zhou L, Tang M, Fu R, Li J, Huang Q. Ultra-deep sequencing enables high-fidelity recovery of biodiversity for bulk arthropod samples without PCR amplification. Gigascience 2013; 2:4. [PMID: 23587339 PMCID: PMC3637469 DOI: 10.1186/2047-217x-2-4] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 03/01/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Next-generation-sequencing (NGS) technologies combined with a classic DNA barcoding approach have enabled fast and credible measurement for biodiversity of mixed environmental samples. However, the PCR amplification involved in nearly all existing NGS protocols inevitably introduces taxonomic biases. In the present study, we developed new Illumina pipelines without PCR amplifications to analyze terrestrial arthropod communities. RESULTS Mitochondrial enrichment directly followed by Illumina shotgun sequencing, at an ultra-high sequence volume, enabled the recovery of Cytochrome c Oxidase subunit 1 (COI) barcode sequences, which allowed for the estimation of species composition at high fidelity for a terrestrial insect community. With 15.5 Gbp Illumina data, approximately 97% and 92% were detected out of the 37 input Operational Taxonomic Units (OTUs), whether the reference barcode library was used or not, respectively, while only 1 novel OTU was found for the latter. Additionally, relatively strong correlation between the sequencing volume and the total biomass was observed for species from the bulk sample, suggesting a potential solution to reveal relative abundance. CONCLUSIONS The ability of the new Illumina PCR-free pipeline for DNA metabarcoding to detect small arthropod specimens and its tendency to avoid most, if not all, false positives suggests its great potential in biodiversity-related surveillance, such as in biomonitoring programs. However, further improvement for mitochondrial enrichment is likely needed for the application of the new pipeline in analyzing arthropod communities at higher diversity.
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Affiliation(s)
- Xin Zhou
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
- China National GeneBank-Shenzhen, Yantian District, Shenzhen, Guangdong Province 518083, China
- Shenzhen Key Laboratory of Environmental Microbial Genomics and Application, Shenzhen, Guangdong Province 518083, China
| | - Yiyuan Li
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
- China National GeneBank-Shenzhen, Yantian District, Shenzhen, Guangdong Province 518083, China
- Shenzhen Key Laboratory of Environmental Microbial Genomics and Application, Shenzhen, Guangdong Province 518083, China
| | - Shanlin Liu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
- China National GeneBank-Shenzhen, Yantian District, Shenzhen, Guangdong Province 518083, China
- Shenzhen Key Laboratory of Environmental Microbial Genomics and Application, Shenzhen, Guangdong Province 518083, China
| | - Qing Yang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
| | - Xu Su
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
- China National GeneBank-Shenzhen, Yantian District, Shenzhen, Guangdong Province 518083, China
- Shenzhen Key Laboratory of Environmental Microbial Genomics and Application, Shenzhen, Guangdong Province 518083, China
| | - Lili Zhou
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
- China National GeneBank-Shenzhen, Yantian District, Shenzhen, Guangdong Province 518083, China
| | - Min Tang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
- China National GeneBank-Shenzhen, Yantian District, Shenzhen, Guangdong Province 518083, China
| | - Ribei Fu
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
| | - Jiguang Li
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
| | - Quanfei Huang
- BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen, Guangdong Province 518083, China
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Krawczyk ACDDB, Baldan LT, Aranha JMR, Menezes MSD, Almeida CV. The invertebrate's community in adjacent Alto Iguaçu's anthropic lakes of different environmental factors. BIOTA NEOTROPICA 2013. [DOI: 10.1590/s1676-06032013000100005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Environmental differences occur between lentic and lotic communities' establishment, especially because of water time residence. Here we used a combination of field measurements and statistical analysis to evaluate the influent factors on the aquatic macroinvertebrates' composition and structure in 15 anthropogenic lakes from Alto Iguaçu's region. Macroinvertebrates were sampled from the marginal vegetation (with or without macrophytes) and sediment. Chemical parameters ranged among the anthropogenic lakes, mainly those which are connected to the Iguaçu River, beyond the presence or absence of macrophytes, interfering on the community's structure. Lake's morphometric data were measured in each lake and its relation to community was tested. The community structure was not related to the margin development index (Ds), macrophytes and altitude. Higher equitability was associated to the macrophytes presence in more than 30% of water surface and also where the riparian vegetation was more complex. Chironomids and oligochaetes densities were associated to lakes with the water surface completely covered by macrophytes and complex riparian vegetation. We observed a close association between productivity (phosphorous and nitrogen) and the community equitability (R = 0.3; p < 0.05) and Oligochaeta dominance (R = 0.32; p < 0.05), and not to Ostracoda's (R = 0.33; p > 0.05) and Chironomidae's (R = 0.34; p > 0.05) dominances, although we had not weighty difference among analyzed biological indexes. The obtained values from the BMWP' and EPT indexes resulted in acceptable, doubtful or critical water quality, what corroborates with the macroinvertebrate's structure of the composition and with the environmental variables observed in field.
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Hajibabaei M, Spall JL, Shokralla S, van Konynenburg S. Assessing biodiversity of a freshwater benthic macroinvertebrate community through non-destructive environmental barcoding of DNA from preservative ethanol. BMC Ecol 2012; 12:28. [PMID: 23259585 PMCID: PMC3542036 DOI: 10.1186/1472-6785-12-28] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Accepted: 11/22/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Characterizing biodiversity in a habitat or in targeted taxonomically or socioeconomically important groups remains a challenge. Standard DNA-based biodiversity identification tools such as DNA barcoding coupled with high-throughput Next-Generation Sequencing (NGS) technologies are rapidly changing the landscape of biodiversity analysis by targeting various habitats and a wide array of organisms. However, effective use of these technological advances requires optimized protocols and benchmarking against traditional tools. Here we investigate the use of commonly used preservative ethanol as a non-destructive and inexpensive source of DNA for NGS biodiversity analysis of benthic macroinvertebrates. We used the preservative ethanol added to field collected organisms (live sorted bulk benthic samples) as a source of community DNA for NGS environmental barcoding. We directly compare this approach with a DNA barcode library generated using Sanger sequencing of all individuals separated from abenthic sample as well as with NGS environmental barcoding of DNA extracted from mixed/homogenized tissue specimens of the same benthic sample. We also evaluate a multiplex PCR strategy, as compared to commonly used single amplicon workflow, using three newly designed primer sets targeting a wide array of benthic macroinvertebrate taxa. RESULTS Our results indicate the effectiveness of ethanol-based DNA in providing sequence information from 87% of taxa identified individually from mixture as compared to 89% in conventional tissue extracted DNA. Missing taxa in both DNA sources were from species with the lowest abundance (e.g. 1 individual) in the benthic mixture. Interestingly, we achieved 100% detection for taxa represented with more than 1% individuals in the mixture in both sources of DNA. Our multiplex amplification regime increased the detection as compared to any single primer set indicating the usefulness of using multiple primer sets in initial amplification of target genes. CONCLUSIONS Although NGS approaches have significantly increased the potential of using DNA information in biodiversity analysis, robust methods are needed to provide reliable data and alleviate sample-processing bottlenecks. Here we coupled non-destructive DNA access and a multiplex PCR approach in NGS environmental barcoding for effective data generation from benthic live-sorted samples collected in bulk and preserved in ethanol. Our study provides a possible solution to sampling and vouchering challenges in using benthic samples through next-generation environmental barcoding and facilitates wider utility of DNA information, especially species-specific DNA barcodes, in ecological and environmental studies and real-world applications such as biomonitoring programs.
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Affiliation(s)
- Mehrdad Hajibabaei
- Biodiversity Institute of Ontario, Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada.
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213
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Li F, Cai Q, Qu X, Tang T, Wu N, Fu X, Duan S, Jähnig SC. Characterizing macroinvertebrate communities across China: Large-scale implementation of a self-organizing map. ECOLOGICAL INDICATORS 2012; 23:394-401. [DOI: 10.1016/j.ecolind.2012.04.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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214
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Jun YC, Won DH, Lee SH, Kong DS, Hwang SJ. A multimetric benthic macroinvertebrate index for the assessment of stream biotic integrity in Korea. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2012; 9:3599-628. [PMID: 23202765 PMCID: PMC3509474 DOI: 10.3390/ijerph9103599] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 09/17/2012] [Accepted: 09/25/2012] [Indexed: 11/24/2022]
Abstract
At a time when anthropogenic activities are increasingly disturbing the overall ecological integrity of freshwater ecosystems, monitoring of biological communities is central to assessing the health and function of streams. This study aimed to use a large nation-wide database to develop a multimetric index (the Korean Benthic macroinvertebrate Index of Biological Integrity—KB-IBI) applicable to the biological assessment of Korean streams. Reference and impaired conditions were determined based on watershed, chemical and physical criteria. Eight of an initial 34 candidate metrics were selected using a stepwise procedure that evaluated metric variability, redundancy, sensitivity and responsiveness to environmental gradients. The selected metrics were number of taxa, percent Ephemeroptera-Plecoptera-Trichoptera (EPT) individuals, percent of a dominant taxon, percent taxa abundance without Chironomidae, Shannon’s diversity index, percent gatherer individuals, ratio of filterers and scrapers, and the Korean saprobic index. Our multimetric index successfully distinguished reference from impaired conditions. A scoring system was established for each core metric using its quartile range and response to anthropogenic disturbances. The multimetric index was classified by aggregating the individual metric ..scores and the value range was quadrisected to provide a narrative criterion (Poor, Fair, Good and Excellent) to describe the biological integrity of the streams in the study. A validation procedure showed that the index is an effective method for evaluating stream conditions, and thus is appropriate for use in future studies measuring the long-term status of streams, and the effectiveness of restoration methods.
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Affiliation(s)
- Yung-Chul Jun
- Department of Environmental Science, Konkuk University, Seoul 143-701, Korea;
| | - Doo-Hee Won
- Doohee Institute of Ecological Research, Korea Ecosystem Service Inc., Seoul 153-768, Korea;
| | - Soo-Hyung Lee
- The National Institute of Environmental Research, Inchon 404-170, Korea;
| | - Dong-Soo Kong
- Department of Biology, Kyonggi University, Suwon 443-760, Korea;
| | - Soon-Jin Hwang
- Department of Environmental Science, Konkuk University, Seoul 143-701, Korea;
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215
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Siqueira T, Bini LM, Roque FO, Cottenie K. A metacommunity framework for enhancing the effectiveness of biological monitoring strategies. PLoS One 2012; 7:e43626. [PMID: 22937068 PMCID: PMC3427378 DOI: 10.1371/journal.pone.0043626] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Accepted: 07/26/2012] [Indexed: 11/18/2022] Open
Abstract
Because of inadequate knowledge and funding, the use of biodiversity indicators is often suggested as a way to support management decisions. Consequently, many studies have analyzed the performance of certain groups as indicator taxa. However, in addition to knowing whether certain groups can adequately represent the biodiversity as a whole, we must also know whether they show similar responses to the main structuring processes affecting biodiversity. Here we present an application of the metacommunity framework for evaluating the effectiveness of biodiversity indicators. Although the metacommunity framework has contributed to a better understanding of biodiversity patterns, there is still limited discussion about its implications for conservation and biomonitoring. We evaluated the effectiveness of indicator taxa in representing spatial variation in macroinvertebrate community composition in Atlantic Forest streams, and the processes that drive this variation. We focused on analyzing whether some groups conform to environmental processes and other groups are more influenced by spatial processes, and on how this can help in deciding which indicator group or groups should be used. We showed that a relatively small subset of taxa from the metacommunity would represent 80% of the variation in community composition shown by the entire metacommunity. Moreover, this subset does not have to be composed of predetermined taxonomic groups, but rather can be defined based on random subsets. We also found that some random subsets composed of a small number of genera performed better in responding to major environmental gradients. There were also random subsets that seemed to be affected by spatial processes, which could indicate important historical processes. We were able to integrate in the same theoretical and practical framework, the selection of biodiversity surrogates, indicators of environmental conditions, and more importantly, an explicit integration of environmental and spatial processes into the selection approach.
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Affiliation(s)
- Tadeu Siqueira
- Departamento de Ecologia, Universidade Estadual Paulista – UNESP, Rio Claro, São Paulo, Brazil
- * E-mail:
| | - Luis M. Bini
- Departamento de Ecologia, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Fabio O. Roque
- Departamento de Biologia, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil
| | - Karl Cottenie
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
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Cañedo-Argüelles M, Grantham TE, Perrée I, Rieradevall M, Céspedes-Sánchez R, Prat N. Response of stream invertebrates to short-term salinization: a mesocosm approach. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 166:144-51. [PMID: 22504538 DOI: 10.1016/j.envpol.2012.03.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 02/02/2012] [Accepted: 03/12/2012] [Indexed: 05/14/2023]
Abstract
Salinization is a major and growing threat to freshwater ecosystems, yet its effects on aquatic invertebrates have been poorly described at a community-level. Here we use a controlled experimental setting to evaluate short-term stream community responses to salinization, under conditions designed to replicate the duration (72 h) and intensity (up to 5 mS cm(-1)) of salinity pulses common to Mediterranean rivers subjected to mining pollution during runoff events. There was a significant overall effect, but differences between individual treatments and the control were only significant for the highest salinity treatment. The community response to salinization was characterized by a decline in total invertebrate density, taxon richness and diversity, an increase in invertebrate drift and loss of the most sensitive taxa. The findings indicate that short-term salinity increases have a significant impact on the stream invertebrate community, but concentrations of 5 mS cm(-1) are needed to produce a significant ecological response.
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Affiliation(s)
- Miguel Cañedo-Argüelles
- Grup de Recerca Freshwater Ecology and Management, Departament d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Diagonal 643, 08028 Barcelona, Spain.
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217
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BAIRD DONALDJ, HAJIBABAEI MEHRDAD. Biomonitoring 2.0: a new paradigm in ecosystem assessment made possible by next-generation DNA sequencing. Mol Ecol 2012; 21:2039-44. [DOI: 10.1111/j.1365-294x.2012.05519.x] [Citation(s) in RCA: 303] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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219
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Beketov MA, Liess M. Ecotoxicology and macroecology--time for integration. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 162:247-54. [PMID: 22243871 DOI: 10.1016/j.envpol.2011.11.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 11/07/2011] [Accepted: 11/09/2011] [Indexed: 05/25/2023]
Abstract
Despite considerable progress in ecotoxicology, it has become clear that this discipline cannot answer its central questions, such as, "What are the effects of toxicants on biodiversity?" and "How the ecosystem functions and services are affected by the toxicants?". We argue that if such questions are to be answered, a paradigm shift is needed. The current bottom-up approach of ecotoxicology that implies the use of small-scale experiments to predict effects on the entire ecosystems and landscapes should be merged with a top-down macroecological approach that is directly focused on ecological effects at large spatial scales and consider ecological systems as integral entities. Analysis of the existing methods in ecotoxicology, ecology, and environmental chemistry shows that such integration is currently possible. Therefore, we conclude that to tackle the current pressing challenges, ecotoxicology has to progress using both the bottom-up and top-down approaches, similar to digging a tunnel from both ends at once.
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220
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Peters DL, Baird DJ, Monk WA, Armanini DG. Establishing standards and assessment criteria for ecological instream flow needs in agricultural regions of Canada. JOURNAL OF ENVIRONMENTAL QUALITY 2012; 41:41-51. [PMID: 22218172 DOI: 10.2134/jeq2011.0094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Agricultural land use can place heavy demands on regional water resources, strongly influencing the quantity and timing of water flows needed to sustain natural ecosystems. The effects of agricultural practices on streamflow conditions are multifaceted, as they also contribute to the severity of impacts arising from other stressors within the river ecosystem. Thus, river scientists need to determine the quantity of water required to sustain important aquatic ecosystem components and ecological services, to support wise apportionment of water for agricultural use. It is now apparent that arbitrarily defined minimum flows are inadequate for this task because the complex habitat requirements of the biota, which underpin the structure and function of a river ecosystem, are strongly influenced by predictable temporal variations in flow. We present an alternative framework for establishing a first-level, regional ecological instream flow needs standard based on adoption of the Indicators of Hydrologic Alteration/Range of Variability Approach as a broadly applicable hydrological assessment tool, coupling this to the Canadian Ecological Flow Index which assesses ecological responses to hydrological alteration. By explicitly incorporating a new field-based ecological assessment tool for small agricultural streams, we provide a necessary verification of altered hydrology that is broadly applicable within Canada and essential to ensure the continuous feedback between the application of flow management criteria and ecological condition.
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Affiliation(s)
- Daniel L Peters
- Environment Canada, Water & Climate Impacts Research Centre, Univ. of Victoria, Victoria BC V8W 3R4, Canada.
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221
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Grantham TE, Cañedo-Argüelles M, Perrée I, Rieradevall M, Prat N. A mesocosm approach for detecting stream invertebrate community responses to treated wastewater effluent. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2012; 160:95-102. [PMID: 22035931 DOI: 10.1016/j.envpol.2011.09.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 09/10/2011] [Accepted: 09/14/2011] [Indexed: 05/31/2023]
Abstract
The discharge of wastewater from sewage treatment plants is one of the most common forms of pollution to river ecosystems, yet the effects on aquatic invertebrate assemblages have not been investigated in a controlled experimental setting. Here, we use a mesocosm approach to evaluate community responses to exposure to different concentrations of treated wastewater effluents over a two week period. Multivariate analysis using Principal Response Curves indicated a clear, dose-effect response to the treatments, with significant changes in macroinvertebrate assemblages after one week when exposed to 30% effluent, and after two weeks in the 15% and 30% effluent treatments. Treatments were associated with an increase in nutrient concentrations (ammonium, sulfate, and phosphate) and reduction of dissolved oxygen. These findings indicate that exposure to wastewater effluent cause significant changes in abundance and composition of macroinvertebrate taxa and that effluent concentration as low as 5% can have detectable ecological effects.
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Affiliation(s)
- Theodore E Grantham
- Grup de Recerca Freshwater Ecology and Management (FEM), Departament d'Ecologia, Facultat de Biologia, Universitat de Barcelona (UB), Diagonal 645, 08028 Barcelona, Spain.
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222
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Munné A, Tirapu L, Solà C, Olivella L, Vilanova M, Ginebreda A, Prat N. Comparing Chemical and Ecological Status in Catalan Rivers: Analysis of River Quality Status Following the Water Framework Directive. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2012. [DOI: 10.1007/978-3-642-25722-3_9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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223
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Walter CA, Nelson D, Earle JI. Assessment of Stream Restoration: Sources of Variation in Macroinvertebrate Recovery throughout an 11-Year Study of Coal Mine Drainage Treatment. Restor Ecol 2011. [DOI: 10.1111/j.1526-100x.2011.00845.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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224
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Ferreira WR, Paiva LT, Callisto M. Development of a benthic multimetric index for biomonitoring of a neotropical watershed. BRAZ J BIOL 2011; 71:15-25. [PMID: 21437395 DOI: 10.1590/s1519-69842011000100005] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 02/28/2011] [Indexed: 11/22/2022] Open
Abstract
Biotic indices are important tools for evaluating water quality in Biomonitoring Programmes of river basins. The objective of this study was to develop a Benthic Multimetric Index (BMI) to evaluate the water quality in a neotropical catchment in southeastern Brazil. Thirty metrics were evaluated and six were selected to calculate the BMI: family richness, % Oligochaeta, % Chironomidae + Oligochaeta (% CHOL), % EPT (Ephemeroptera, Plecoptera and Trichoptera), % Collector-gatherers, and BMWP-CETEC biotic index. Sampling was carried in triplicate at 21 sampling sites (8 in the river channel and 13 in the tributaries) during 4 annual collecting trips from June 2004 to November 2007, making a total of 945 samples. Scores (5, 3 or 1) were attributed to each chosen metric and were added up to establish the water quality criteria (a score of 6-12 - poor; 13-18 - intermediate; 19-24 - good; and 25-30 - very good water quality). Our results indicated that 48% of the sampling sites analysed in the catchment basin presented very good water quality, 14% good quality, 19% regular, and 19% poor water quality. This methodology proved to be an efficient tool for evaluating water quality in the Biomonitoring Programme of the Velhas River basin, and that it may serve to evaluate water quality in other river basins in South America.
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Affiliation(s)
- W R Ferreira
- Departamento de Biologia Geral, Laboratório de Ecologia de Bentos, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.
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225
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Nogueira DS, Cabette HSR, Juen L. Estrutura e composição da comunidade de Trichoptera (Insecta) de rios e áreas alagadas da bacia do rio Suiá-Miçú, Mato Grosso, Brasil. IHERINGIA. SERIE ZOOLOGIA 2011. [DOI: 10.1590/s0073-47212011000200004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A composição, abundância e riqueza de Trichoptera imaturos foram estudadas em 12 tributários da bacia do rio Suiá-Miçú, afluente do rio Xingu, um mosaico de áreas alagadas, córregos e rios na área de transição Cerrado - Floresta Amazônica na região leste de Mato Grosso, Brasil. Larvas de insetos aquáticos foram amostradas em transectos nas margens de tributários lênticos e lóticos com tamanho e níveis de conservação variáveis, em três períodos entre 2007 e 2008. Foram coligidas 867 larvas (sete famílias, 17 gêneros, 45 morfoespécies), sendo Hydropsychidae e Leptoceridae as famílias mais abundantes e ricas, e Leptonema sparsum a espécie mais abundante (n=370). Houve perda de riqueza de espécies em ambientes impactados e naqueles de maior porte ou de fluxo lêntico. Foi possível detectar variações na composição relacionadas ao fluxo, tipo de vegetação e na interação entre o nível de conservação e fluxo. O nível de conservação, a largura e o índice quantitativo de integridade de hábitat (IIH) não influenciaram a composição de Trichoptera isoladamente. Estes resultados podem fomentar novas investigações dos efeitos dos impactos sobre a composição da entomofauna aquática na transição entre o Cerrado e a Floresta Amazônica.
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226
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Damásio J, Fernández-Sanjuan M, Sánchez-Avila J, Lacorte S, Prat N, Rieradevall M, Soares AMVM, Barata C. Multi-biochemical responses of benthic macroinvertebrate species as a complementary tool to diagnose the cause of community impairment in polluted rivers. WATER RESEARCH 2011; 45:3599-3613. [PMID: 21571352 DOI: 10.1016/j.watres.2011.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 04/04/2011] [Accepted: 04/05/2011] [Indexed: 05/30/2023]
Abstract
Biological indexes, based on benthic macroinvertebrate taxa, are currently used worldwide to measure river ecological quality. These indexes assign a global ecological status of the biotic community, but not necessarily may detect specific effects of water pollutants. Conversely a large set of biochemical markers measured in macroinvertebrate benthic species can detect sublethal effects and inform us about additional environmental factors that are impairing benthic communities. This is especially interesting in moderately polluted sites, where other stressors are already affecting communities but not too strongly to be detected by biotic indexes. Up to ten different markers belonging to distinct metabolic paths and 42 contaminants measured in sample collections of the caddis fly Hydropsyche exocellata were assessed across a polluted gradient in the industrialized Mediterranean River basins of Besós and Llobregat (NE, Spain). Twenty four sample collections were selected to include macroinvertebrate communities representing the five impairment degrees defined by the Spanish Environmental authorities using the biotic metrics. Results evidenced a clear deterioration of the ecological water quality parameters and benthic communities towards downstream reaches. Biochemical responses varied significantly across the studied samples and were able to differentiate samples within communities having a good and deteriorated ecological stage. Principal Component Analyses indicated that salinity was one of the major stresses affecting macroinvertebrate assemblages, whereas antioxidant and metabolizing enzymes responded differently and were closely related to high and presumably toxic levels of accumulated organic pollutants. Therefore these results indicate that the use of multiple -markers sensitive to water pollution may provide complementary information to diagnose environmental factors that are impairing macroinvertebrate communities.
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Affiliation(s)
- Joana Damásio
- Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18-26, 08034 Barcelona, Spain
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227
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Suriano MT, Fonseca-Gessner AA, Roque FO, Froehlich CG. Choice of macroinvertebrate metrics to evaluate stream conditions in Atlantic Forest, Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2011; 175:87-101. [PMID: 20461547 DOI: 10.1007/s10661-010-1495-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2009] [Accepted: 04/21/2010] [Indexed: 05/29/2023]
Abstract
The development of biomonitoring programs based on the macroinvertebrate community requires the understanding of species distribution patterns, as well as of the responses of the community to anthropogenic stressors. In this study, 49 metrics were tested as potential means of assessing the condition of 29 first- and second-order streams located in areas of differing types of land use in São Paulo State, Brazil. Of the sampled streams, 15 were in well-preserved regions in the Atlantic Forest, 5 were among sugarcane cultivations, 5 were in areas of pasture, and 4 were among eucalyptus plantations. The metrics were assessed against the following criteria: (1) predictable response to the impact of human activity; (2) highest taxonomic resolution, and (3) operational and theoretical simplicity. We found that 18 metrics were correlated with the environmental and spatial predictors used, and seven of these satisfied the selection criteria and are thus candidates for inclusion in a multimetric system to assess low-order streams in São Paulo State. These metrics are family richness; Ephemeroptera, Plecoptera and Trichoptera (EPT) richness; proportion of Megaloptera and Hirudinea; proportion of EPT; Shannon diversity index for genus; and adapted Biological Monitoring Work Party biotic index.
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Affiliation(s)
- Marcia Thais Suriano
- Laboratório de Entomologia Aquática, FFCLRP, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil.
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228
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Culp JM, Armanini DG, Dunbar MJ, Orlofske JM, Poff NL, Pollard AI, Yates AG, Hose GC. Incorporating traits in aquatic biomonitoring to enhance causal diagnosis and prediction. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2011; 7:187-97. [PMID: 21442732 DOI: 10.1002/ieam.128] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Revised: 04/02/2010] [Accepted: 07/23/2010] [Indexed: 05/03/2023]
Abstract
The linkage of trait responses to stressor gradients has potential to expand biomonitoring approaches beyond traditional taxonomically based assessments that identify ecological effect to provide a causal diagnosis. Traits-based information may have several advantages over taxonomically based methods. These include providing mechanistic linkages of biotic responses to environmental conditions, consistent descriptors or metrics across broad spatial scales, more seasonal stability compared with taxonomic measures, and seamless integration of traits-based analysis into assessment programs. A traits-based biomonitoring approach does not require a new biomonitoring framework, because contemporary biomonitoring programs gather the basic site-by-species composition matrices required to link community data to the traits database. Impediments to the adoption of traits-based biomonitoring relate to the availability, consistency, and applicability of existing trait data. For example, traits generalizations among taxa across biogeographical regions are rare, and no consensus exists relative to the required taxonomic resolution and methodology for traits assessment. Similarly, we must determine if traits form suites that are related to particular stressor effects, and whether significant variation of traits occurs among allopatric populations. Finally, to realize the potential of traits-based approaches in biomonitoring, a concerted effort to standardize terminology is required, along with the establishment of protocols to ease the sharing and merging of broad, geographical trait information.
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Affiliation(s)
- Joseph M Culp
- Environment Canada, NWRI, University of New Brunswick, 10 Bailey Drive, Fredericton, NB E3B5A3, Canada.
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229
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Hladyz S, Åbjörnsson K, Giller PS, Woodward G. Impacts of an aggressive riparian invader on community structure and ecosystem functioning in stream food webs. J Appl Ecol 2011. [DOI: 10.1111/j.1365-2664.2010.01924.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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231
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Hladyz S, Åbjörnsson K, Chauvet E, Dobson M, Elosegi A, Ferreira V, Fleituch T, Gessner MO, Giller PS, Gulis V, Hutton SA, Lacoursière JO, Lamothe S, Lecerf A, Malmqvist B, McKie BG, Nistorescu M, Preda E, Riipinen MP, Rîşnoveanu G, Schindler M, Tiegs SD, Vought LBM, Woodward G. Stream Ecosystem Functioning in an Agricultural Landscape. ADV ECOL RES 2011. [DOI: 10.1016/b978-0-12-374794-5.00004-3] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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232
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Morais SS, Molozzi J, Viana AL, Viana TH, Callisto M. Diversity of larvae of littoral Chironomidae (Diptera: Insecta) and their role as bioindicators in urban reservoirs of different trophic levels. BRAZ J BIOL 2010; 70:995-1004. [PMID: 21180904 DOI: 10.1590/s1519-69842010000500011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Accepted: 11/30/2009] [Indexed: 11/22/2022] Open
Abstract
The Chironomidae (Diptera: Insecta) have a high species richness, with species adapted to live under widely different environmental conditions. The study of the taxonomic composition of chironomid larvae and the percentage of occurrence of deformities in mouthparts, mainly in the mentum, are used in biomonitoring programmes in order to obtain information on the levels of organic and chemical pollution of aquatic ecosystems. The objective of this study was to evaluate the abundance of chironomid larvae and to quantify the occurrence of mentum deformities in the specimens collected in three urban reservoirs with different trophic levels. The reservoirs are located in the hydrographic basin of the Paraopeba River, an affluent of the São Francisco River basin (Minas Gerais State, southeastern Brazil). The Serra Azul Reservoir is oligotrophic, the Vargem das Flores Reservoir is mesotrophic, and the Ibirité Reservoir is eutrophic. Along the littoral zone of each reservoir, 30 samples were collected during each sampling campaign. Sampling was carried out every three months for one year, with two sampling campaigns during the wet season and two during the dry season in 2008. Physical and chemical parameters measured in the water column included the water depth, Secchi depth, air and water temperature, electrical conductivity, total dissolved solids, redox potential, dissolved oxygen, pH, turbidity, Total-N, Total-P, P-ortho, and chlorophyll-a. The chironomid larvae were identified to the genus level. The structure of the chironomid assemblages was evaluated based on taxonomic richness (24 genera), density, equitability, and diversity. The potential indicator taxa for each reservoir were established through an Indicator Species Analysis. The values for taxonomic richness (20 taxa), equitability (0.737), and Shannon-Wiener diversity (2.215) were highest in the Serra Azul Reservoir. Fissimentum was the indicator taxon in Serra Azul, the oligotrophic reservoir; whereas Pelomus was the indicator taxon in Vargem das Flores, and Chironomus in Ibirité. The highest percentage of mentum deformities was found during the dry season in Serra Azul (6.9%), while the lowest percentage was found during the wet season in Vargem das Flores (0.8%). The results of this study evidenced significant differences in the taxonomic composition, richness, equitability, and diversity of the chironomid assemblages in these three reservoirs of different trophic levels.
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Affiliation(s)
- S S Morais
- Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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233
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Oliveira A, Callisto M. Benthic macroinvertebrates as bioindicators of water quality in an Atlantic forest fragment. IHERINGIA. SERIE ZOOLOGIA 2010. [DOI: 10.1590/s0073-47212010000400003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of this study was to evaluate benthic macroinvertebrate communities as bioindicators of water quality in five streams located in the "Reserva Particular do Patrimônio Natural" (RPPN) Mata Samuel de Paula and its surroundings, in the municipality of Nova Lima near the city of Belo Horizonte, Minas Gerais State, southeastern Brazil. This region has been strongly modified by human activities including mining and urbanization. Samples were collected in the field every three months between August 2004 and November 2005, totaling six samplings in the rainy and dry seasons. This assessment identified one area ecologically altered while the other sampling sites were found to be minimally disturbed systems, with well-preserved ecological conditions. However, according to the Biological Monitoring Work Party (BMWP) and the Average Score Per Taxon (ASPT) indices, all sampling sites had excellent water quality. A total of 14,952 organisms was collected, belonging to 155 taxa (148 Insecta, two Annelida, one Bivalvia, one Decapoda, one Planariidae, one Hydracarina, and one Entognatha). The most abundant benthic groups were Chironomidae (47.9%), Simuliidae (12.3%), Bivalvia (7.5%), Decapoda (6.1%), Oligochaeta (5.2%), Polycentropodidae (3.7%), Hydropsychidae (2.5%), Calamoceratidae (1.8%), Ceratopogonidae (1.7%), and Libellulidae (1.2%). The assessment of the benthic functional feeding groups showed that 34% of the macroinvertebrates were collector-gatherers, 29% predators, 24% collector-filterers, 8% shredders, and 5% scrapers. The RPPN Mata Samuel de Paula comprises diversified freshwater habitats that are of great importance for the conservation of many benthic taxa that are intolerant to organic pollution.
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234
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Stamp JD, Hamilton AT, Zheng L, Bierwagen BG. Use of thermal preference metrics to examine state biomonitoring data for climate change effects. ACTA ACUST UNITED AC 2010. [DOI: 10.1899/10-003.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jennifer D. Stamp
- Center for Ecological Sciences, Tetra Tech, Inc., 73 Main Street, Suite 38, Montpelier, Vermont 05602 USA
| | - Anna T. Hamilton
- Center for Ecological Sciences, Tetra Tech, Inc., 502 W. Cordova Rd., Suite C, Santa Fe, New Mexico 87505 USA
| | - Lei Zheng
- Center for Ecological Sciences, Tetra Tech, Inc., 400 Red Brook Blvd., Suite 200, Owings Mills, Maryland 21117 USA
| | - Britta G. Bierwagen
- Global Change Research Program, National Center for Environmental Assessment, Office of Research and Development, US Environmental Protection Agency, 1200 Pennsylvania Ave., NW, Washington, DC 20460 USA
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Comte L, Lek S, de Deckere E, de Zwart D, Gevrey M. Assessment of stream biological responses under multiple-stress conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2010; 17:1469-1478. [PMID: 20419476 DOI: 10.1007/s11356-010-0333-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Accepted: 03/28/2010] [Indexed: 05/29/2023]
Abstract
BACKGROUND, AIM AND SCOPE Due to the numerous anthropogenic stress factors that affect aquatic ecosystems, a better understanding of the adverse consequences on the biological community of combined pressures is needed to attain the objectives of the European Water Framework Directive. In this study we propose an innovative approach to assess the biological impact of toxicants under field conditions on a large spatial scale. MATERIALS AND METHODS Artificial Neural Network (ANN) analyses, focusing on impacts at the community level, were carried out to identify the relative importance of environmental and toxic stress factors on the patterns observed in the aquatic invertebrate fauna from the Scheldt basin (Belgium). RESULTS AND DISCUSSION Our results show that the use of the backpropagation algorithm of the ANN is a promising method to highlight the relationship between environmental pollution and biological responses. This method allows the effects of chemical exposure to be distinguished from the effects caused by other stressors in running waters. Moreover, the use of an overall estimate for toxic pressure in predictive models enables the links between toxicants and community alterations in the field to be clarified. The ANN correctly predicts 74% of samples with an area under the curve of 0.89 and a Cohen's kappa coefficient of 0.64. Organic load, oxygen availability, water temperature and the nitrate concentration appeared important factors in predicting aquatic invertebrate assemblages. On the other hand, toxic pressure did not seem relevant for these assemblages, suggesting that the water quality characteristics were therefore more important than exposure to toxicants in the water phase for the aquatic invertebrate communities in the study area. However, we suggest that the high organic load encountered in the Scheldt basin may lead to an underestimation of the impact of toxicity.
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Affiliation(s)
- Lise Comte
- Laboratoire Evolution et Diversité Biologique, Université de Toulouse III, UMR 5174, CNRS-Univ. Paul Sabatier 118, route de Narbonne, 31062, Toulouse cedex 4, France
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236
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Schäfer RB, Hearn L, Kefford BJ, Mueller JF, Nugegoda D. Using silicone passive samplers to detect polycyclic aromatic hydrocarbons from wildfires in streams and potential acute effects for invertebrate communities. WATER RESEARCH 2010; 44:4590-600. [PMID: 20554305 DOI: 10.1016/j.watres.2010.05.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Revised: 05/10/2010] [Accepted: 05/27/2010] [Indexed: 05/04/2023]
Abstract
Silicone rubber passive samplers spiked with 4 deuterated performance reference compounds were deployed for 29-33 days to estimate the concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) in 9 streams in Victoria, Australia, following a wildfire. Silicone rubber strips of 2 thicknesses were used to obtain information on the status of uptake of the chemicals of interest at retrieval. In addition, we monitored the stream macroinvertebrate community for potential effects of PAHs or other fire organics. All selected PAHs were detected in the passive samplers and the sampling rates ranged from 0.5 to 50 L/day significantly varying between sites but not compounds, presumably due to differences in current velocity. The estimated water concentrations were 0.1-10 ng/L for total PAHs with phenanthrene, pyrene and fluoranthene accounting for 91% of the total concentration. All PAHs were a factor of 1000 or more below the reported 48-h median lethal concentrations (48-h LC50) for Daphnia magna. Two sites located closest to the fires exhibited elevated concentrations compared to the other sites and the passive samplers in these sites remained in the integrative uptake regime for all compounds, suggesting precipitation-associated PAH input. No acute toxic effects of PAHs or other fire organics on the invertebrate community were detected using a biotic index for organic toxicants (SPEAR), whereas a non-specific biotic index (SIGNAL) decreased in two sites indicating impacts from changes in other environmental parameters. We conclude (1) that silicone-based passive samplers with two different area-to-volume ratios represent a promising tool for determining organic toxicants and (2) that PAHs from wildfires are unlikely to be a common main cause for fire-related ecological effects in streams adjacent to burnt regions.
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Affiliation(s)
- Ralf Bernhard Schäfer
- School of Applied Sciences, RMIT University, PO Box 71, Bundoora, VIC 3083, Australia.
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237
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Cao Y, Epifanio J. Quantifying the responses of macroinvertebrate assemblages to simulated stress: are more accurate similarity indices less useful? Methods Ecol Evol 2010. [DOI: 10.1111/j.2041-210x.2010.00040.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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238
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Varandas SG, Cortes RMV. Evaluating macroinvertebrate biological metrics for ecological assessment of streams in northern Portugal. ENVIRONMENTAL MONITORING AND ASSESSMENT 2010; 166:201-221. [PMID: 19488735 DOI: 10.1007/s10661-009-0996-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Accepted: 05/13/2009] [Indexed: 05/27/2023]
Abstract
A procedure to select the most relevant metrics for assessing the ecological condition of the Douro basin (north Portugal) was developed based upon a set of 184 benthic community metrics. They were grouped into 16 biological categories selected from literature using data collected over 2 years from 54 sites along 31 rivers covering the whole perceived range of human disturbance. Multivariate analyses were carried out to identify the main trends in the macroinvertebrate data, to select reference versus impaired sites, to avoid multicolinearity between metrics, and to identify those that were clearly independent from natural stream typology. Structural metrics, adaptation metrics, and tolerance measures most effectively responded across a range of human influence. We find these attributes to be ecologically sound for monitoring Portugal's lotic ecosystems and providing information relevant to the Water Framework Directive, which asserts that the definition of water quality depends on its "ecological status", independent of the actual or potential uses of those waters.
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Affiliation(s)
- Simone G Varandas
- CITAB-Center for Research and Technology of Agro-Environment and Biological Sciences, Forestry Department, Universidade de Trás-os-Montes e Alto Douro, Apartado 1013, 5001-801, Vila Real, Portugal.
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239
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Marshall S, Pettigrove V, Carew M, Hoffmann A. Isolating the impact of sediment toxicity in urban streams. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2010; 158:1716-1725. [PMID: 20071061 DOI: 10.1016/j.envpol.2009.11.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2009] [Revised: 11/23/2009] [Accepted: 11/24/2009] [Indexed: 05/28/2023]
Abstract
Several factors can contribute to the ecological degradation of stream catchments following urbanization, but it is often difficult to separate their relative importance. We isolated the impact of polluted sediment on the condition of an urban stream in Melbourne, Australia, using two complementary approaches. Using a rapid bioassessment approach, indices of stream condition were calculated based on macroinvertebrate field surveys. Urban stream reaches supported impoverished macroinvertebrate communities, and contained potentially toxic concentrations of heavy metals and hydrocarbons. Using a field microcosm approach, a bioassay was carried out to assess sediment pollution effects on native macroinvertebrates. Sediment from urban sites substantially altered the microcosm macroinvertebrate community, most likely due to elevated heavy metal and hydrocarbon concentrations. Macroinvertebrate surveys combined with a bioassay approach based on field microcosms can help isolate the effect of stream pollutants in degraded ecosystems.
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Affiliation(s)
- Stephen Marshall
- Centre for Environmental Stress and Adaptation Research (CESAR), The University of Melbourne, Bio21 Institute, 30 Flemington Road, Parkville, VIC 3010, Australia.
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240
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Benke AC, Huryn AD. Benthic invertebrate production—facilitating answers to ecological riddles in freshwater ecosystems. ACTA ACUST UNITED AC 2010. [DOI: 10.1899/08-075.1] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Arthur C. Benke
- Aquatic Biology Program, Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama 35487 USA
| | - Alexander D. Huryn
- Aquatic Biology Program, Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama 35487 USA
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241
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Resh VH, Rosenberg DM. Recent trends in life-history research on benthic macroinvertebrates. ACTA ACUST UNITED AC 2010. [DOI: 10.1899/08-082.1] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Vincent H. Resh
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, California 94720-3114 USA
| | - David M. Rosenberg
- Freshwater Institute, 501 University Crescent, Winnipeg, Manitoba R3T 2N6 Canada
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242
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Dolédec S, Statzner B. Responses of freshwater biota to human disturbances: contribution of J-NABS to developments in ecological integrity assessments. ACTA ACUST UNITED AC 2010. [DOI: 10.1899/08-090.1] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sylvain Dolédec
- UMR CNRS 5023 Ecologie Hydrosystèmes Fluviaux, Université Claude Bernard Lyon I, 43 bd du 11 novembre 1918, 69622 Villeurbanne Cedex, France
| | - Bernhard Statzner
- CNRS, Biodiversité des Ecosystèmes Lotiques, 304 Chemin Creuse Roussillon, F-01600 Parcieux, France
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243
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Smith RF, Alexander LC, Lamp WO. Dispersal by terrestrial stages of stream insects in urban watersheds: a synthesis of current knowledge. ACTA ACUST UNITED AC 2009. [DOI: 10.1899/08-176.1] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Robert F. Smith
- Department of Entomology, 4112 Plant Sciences Building, University of Maryland, College Park, Maryland 20742-4454 USA
| | - Laurie C. Alexander
- Department of Entomology, 4112 Plant Sciences Building, University of Maryland, College Park, Maryland 20742-4454 USA
| | - William O. Lamp
- Department of Entomology, 4112 Plant Sciences Building, University of Maryland, College Park, Maryland 20742-4454 USA
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244
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Dang CK, Harrison S, Sturt MM, Giller PS, Jansen MAK. Is the elemental composition of stream invertebrates a determinant of tolerance to organic pollution? ACTA ACUST UNITED AC 2009. [DOI: 10.1899/08-163.1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christian K. Dang
- Department of Zoology, Ecology and Plant Sciences, University College Cork, Enterprise Centre, North Mall, Cork, Ireland
| | - Simon Harrison
- Department of Zoology, Ecology and Plant Sciences, University College Cork, Enterprise Centre, North Mall, Cork, Ireland
| | - Michael M. Sturt
- Department of Zoology, Ecology and Plant Sciences, University College Cork, Enterprise Centre, North Mall, Cork, Ireland
| | - Paul S. Giller
- Department of Zoology, Ecology and Plant Sciences, University College Cork, Enterprise Centre, North Mall, Cork, Ireland
| | - Marcel A. K. Jansen
- Department of Zoology, Ecology and Plant Sciences, University College Cork, Enterprise Centre, North Mall, Cork, Ireland
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245
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Mazor RD, Purcell AH, Resh VH. Long-term variability in bioassessments: a twenty-year study from two northern California streams. ENVIRONMENTAL MANAGEMENT 2009; 43:1269-86. [PMID: 19381714 PMCID: PMC2691804 DOI: 10.1007/s00267-009-9294-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2008] [Revised: 01/29/2009] [Accepted: 03/12/2009] [Indexed: 05/19/2023]
Abstract
Long-term variability of bioassessments has not been well evaluated. We analyzed a 20-year data set (1984-2003) from four sites in two northern California streams to examine the variability of bioassessment indices (two multivariate RIVPACS-type O/E scores and one multimetric index of biotic integrity, IBI), as well as eight metrics. All sites were sampled in spring; one site was also sampled in summer. Variability among years was high for most metrics (coefficients of variation, CVs ranging from 16% to 246% in spring) but lower for indices (CVs of 22-26% for the IBI and 21-32% for O/E scores in spring), which resulted in inconsistent assessments of biological condition. Variance components analysis showed that the time component explained variability in all metrics and indices, ranging from 5% to 35% of total variance explained. The site component was large (i.e., >40%) for some metrics (e.g., EPT richness), but nearly absent from others (e.g., Diptera richness). Seasonal analysis at one site showed that variability among seasons was small for some metrics or indices (e.g., Coleoptera richness), but large for others (e.g., EPT richness, O/E scores). Climatic variables did not show consistent trends across all metrics, although several were related to the El Niño Southern Oscillation Index at some sites. Bioassessments should incorporate temporal variability during index calibration or include climatic variability as predictive variables to improve accuracy and precision. In addition, these approaches may help managers anticipate alterations in reference streams caused by global climate change and high climatic variability.
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Affiliation(s)
- Raphael D Mazor
- Department of Environmental Science, Policy, & Management, University of California, Berkeley, CA 94720-3114, USA.
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246
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Yoder CO, Barbour MT. Critical technical elements of state bioassessment programs: a process to evaluate program rigor and comparability. ENVIRONMENTAL MONITORING AND ASSESSMENT 2009; 150:31-42. [PMID: 19043790 DOI: 10.1007/s10661-008-0671-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Accepted: 07/24/2008] [Indexed: 05/27/2023]
Abstract
We developed a systematic process to evaluate state/tribal bioassessment programs to provide information about the rigor of the technical approach. This is accomplished via on-site interviews to produce an evaluation that assigns one of four levels of rigor as an outcome. Level 4 is the most rigorous and reflects a technical capacity to accurately determine incremental condition and support management programs. The remaining three levels are less able to assess incremental condition and are appropriate for only some management support needs. Accurately determining impairment and diagnosing pollution-specific stressors are fundamental tasks that states/tribes must accomplish to provide management support. This goal is fulfilled to varying degrees by most states/tribes. The evaluation employs a checklist and a sliding scale of rigor for 13 technical elements. Feedback is provided to each state/tribe via a technical memorandum that describes the technical components of the monitoring program, highlights strengths, and recommends improvements for specific technical issues. This can be used to refine the bioassessment and monitoring programs to better support management programs. The results of 14 state/tribal evaluations are included here. The majority (nine states, one tribe) revealed that most operate at level 2 with developmental activities that will elevate the level of program rigor already underway. Two states operate level 4 programs and each have numeric biocriteria and refined designated uses in their water quality standards. This is the ultimate goal of the process of engaging states in the development of bioassessment programs in the U.S.
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Affiliation(s)
- Chris O Yoder
- Center for Applied Bioassessment & Biocriteria, Midwest Biodiversity Institute, P.O. Box 21561, Columbus, OH 43221-0561, USA.
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247
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Aizawa S, Tsunoda A, Yasuda M, Tsunoda KI, Itabashi H. Concentrations of Heavy Metals in Caddisfly Larvae of the Tone River System and Their Seasonal Variations. BUNSEKI KAGAKU 2009. [DOI: 10.2116/bunsekikagaku.58.273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Shoichi Aizawa
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Atsuko Tsunoda
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | | | - Kin-ichi Tsunoda
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Hideyuki Itabashi
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
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248
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Beketov MA, Liess M. An indicator for effects of organic toxicants on lotic invertebrate communities: Independence of confounding environmental factors over an extensive river continuum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2008; 156:980-987. [PMID: 18547697 DOI: 10.1016/j.envpol.2008.05.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2007] [Revised: 03/20/2008] [Accepted: 05/03/2008] [Indexed: 05/26/2023]
Abstract
Distinguishing between effects of natural and anthropogenic environmental factors on ecosystems is a fundamental problem in environmental science. In river systems the longitudinal gradient of environmental factors is one of the most relevant sources of dissimilarity between communities that could be confounded with anthropogenic disturbances. To test the hypothesis that in macroinvertebrate communities the distribution of species' sensitivity to organic toxicants is independent of natural longitudinal factors, but depends on contamination with organic toxicants, we analysed the relationship between community sensitivity SPEAR(organic) (average community sensitivity to organic toxicants) and natural and anthropogenic environmental factors in a large-scale river system, from alpine streams to a lowland river. The results show that SPEAR(organic) is largely independent of natural longitudinal factors, but strongly dependent on contamination with organic toxicants (petrochemicals and synthetic surfactants). Usage of SPEAR(organic) as a stressor-specific longitude-independent measure will facilitate detection of community disturbance by organic toxicants.
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Affiliation(s)
- Mikhail A Beketov
- UFZ-Helmholtz Centre for Environmental Research, Department of System Ecotoxicology, Permoserstrasse 15, D-04318 Leipzig, Germany.
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249
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Ode PR, Hawkins CP, Mazor RD. Comparability of biological assessments derived from predictive models and multimetric indices of increasing geographic scope. ACTA ACUST UNITED AC 2008. [DOI: 10.1899/08-051.1] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Peter R. Ode
- Aquatic Bioassessment Laboratory, Water Pollution Control Laboratory, California Department of Fish and Game, 2005 Nimbus Road, Rancho Cordova, California 95670 USA
| | - Charles P. Hawkins
- Western Center for Monitoring and Assessment of Freshwater Ecosystems, Department of Watershed Sciences, 5210 Old Main Hill, Utah State University, Logan, Utah 84322-5210 USA
| | - Raphael D. Mazor
- Southern California Coastal Water Research Project, 3535 Harbor Boulevard Suite 110, Costa Mesa, California 92626 USA and Aquatic Bioassessment Laboratory, Water Pollution Control Laboratory, California Department of Fish and Game, 2005 Nimbus Road, Rancho Cordova, California 95670 USA
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250
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Damásio J, Tauler R, Teixidó E, Rieradevall M, Prat N, Riva MC, Soares AMVM, Barata C. Combined use of Daphnia magna in situ bioassays, biomarkers and biological indices to diagnose and identify environmental pressures on invertebrate communities in two Mediterranean urbanized and industrialized rivers (NE Spain). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2008; 87:310-320. [PMID: 18420289 DOI: 10.1016/j.aquatox.2008.02.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2007] [Revised: 02/26/2008] [Accepted: 02/27/2008] [Indexed: 05/26/2023]
Abstract
Environmental factors affecting aquatic invertebrate communities were assessed using Daphnia magna in situ bioassays and biological indices based on community assemblages of benthic macroinvertebrates. Investigations were carried out in two heavily industrialized and urbanized river basins from the NE of Spain (Llobregat and Besós). Measures of energy consumption (i.e. algal grazing), and of specific biochemical responses (biomarkers) were conducted on individuals transplanted upstream and downstream from effluent discharges of sewage treatment plants. In both rivers there was a clear deterioration of the ecological water quality parameters and benthic communities towards downstream reaches. In all but one of the 19 locations studied, transplanted organisms were affected in at least one of the five measured responses. In three of them, significant effects were detected in most of the traits considered. Principal Component and Partial Least Square Projections to Latent Structures regression analyses indicated that the measured responses in D. magna in situ bioassays and those of macroinvertebrate assemblages were affected by distinct environmental factors. From up to 20 environmental variables considered, seven of them including habitat degradation, suspended solids, nitrogenous and conductivity related parameters affected macroinvertebrate assemblages. On the other hand, levels of organophosphorus compounds and polycyclic aromatic hydrocarbons were high enough to trigger the responses of D. magna in situ bioassays. These results emphasize the importance of combining biological indices with biomarkers and more generalized and ecologically relevant (grazing) in situ responses to identify ecological effects of effluent discharges from sewage treatment plants in surface waters.
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Affiliation(s)
- Joana Damásio
- Department of Environmental Chemistry, IIQAB-CSIC, Jordi Girona 18, 08034 Barcelona, Spain
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