Effects of olive mill wastewater discharge on benthic biota in Mediterranean streams

Smeti, Evangelia; Kalogianni, Eleni; Karaouzas, Ioannis; Laschou, Sofia; Tornés, Elisabet; Castro-Català, Núria De; Anastasopoulou, E.; Koutsodimou, Maria; Andriopoulou, Argyro; Vardakas, Leonidas; Muñoz, Isabel; Sabater, Sergi; Skoulikidis, Nikolaos Th.

doi:10.1016/j.envpol.2019.113057

Cited by 17 publications

(9 citation statements)

References 36 publications

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“…the production of high percentages of teratological valves in many diatom species, with particular regard to Fragilaria rumpens (Kützing) G.W.F. Carlson (Smeti et al, 2019). Also in this study, as already observed in previous ones, the unpolluted sites subject to hydrological stress were interested by teratological forms production, even though to a less extent.…”

Section: Multiple Stresssupporting

confidence: 79%

“…Tornés et al (2018) observed that even if abnormal diatoms were also found in unpolluted sites, possibly due to the hydrological stress, significantly higher percentage of deformed valves were related to the urban pollution. Similar results were obtained when testing the effects of olive mill wastewaters in Mediterranean streams subject to different degrees of hydrological alterations (Smeti et al, 2019). Olive mills wastewater consists in high phenolic content, as well as organic matter, ammonium, inorganic phosphorous, trace metals, suspended solids and low pH.…”

Section: Multiple Stresssupporting

confidence: 77%

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Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

et al. 2021

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Over the last years, issues concerning diatom teratological forms and environmental stress have received growing interest within the scientific community. Publications on this topic dated back to 1890 and were summarized in a review published in 2009 by the journal Hydrobiologia, accounting for high citation rates (i.e. 117 citations Scopus and 232 citations Google Scholar, October 2020). This wide interest stimulates the authors to further unravel teratological forms significance in the light of the most recent publications (2010–2020). Diatom teratological forms are one of the best individual-level biomarkers since they provide a rapid response to several environmental stressors, including new emerging pollutants. The mechanisms involved in teratological valve likely involve both cytoskeleton and silicon metabolic pathway impairments. However, teratologies do not seem to weaken the reproduction capacity and viability of the affected individuals. We recognized eight types of teratologies as involving different parts of the valve, depending on genus. In order to summarize the information obtained by several years of research, we suggest a four-step procedure aimed at providing a theoretical pathway that researchers should follow to better explain results obtained in next-future studies and representing a starting point for the development of an environmental index based on teratological forms.

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Section: Multiple Stresssupporting

confidence: 79%

Section: Multiple Stresssupporting

confidence: 77%

Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

et al. 2021

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“…This might be a result of sedimentary nature and short lifecycle of benthic diatoms compared to fish that are characterized by stronger adaptability due to their migratory capacities and long lifecycle [47]. Diatoms show to be more affected by toxic wastes (i.e., olive mill wastewaters) than invertebrates in temporary rivers in Greece [49] and in northwestern Spain because of sensitivity of diatom-based indices to heavy metals [50]. Furthermore, diatoms are more affected by diffuse pollution than benthic invertebrates, providing a stricter ecological status in Mediterranean small-sized streams [51].…”

Section: Advantages Of Benthic Diatoms Over Other Biological Quality mentioning

confidence: 99%

Benthic Diatoms in River Biomonitoring—Present and Future Perspectives within the Water Framework Directive

Μασούρας

Karaouzas

Dimitriou

et al. 2021

Water

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The European Water Framework Directive 2000/60/EC (WFD) has been implemented over the past 20 years, using physicochemical, biological and hydromorphological elements to assess the ecological status of surface waters. Benthic diatoms (i.e., phytobenthos) are one of the most common biological quality elements (BQEs) used in surface water monitoring and are particularly successful in detecting eutrophication, organic pollution and acidification. Herein, we reviewed their implementation in river biomonitoring for the purposes of the WFD, highlighting their advantages and disadvantages over other BQEs, and we discuss recent advances that could be applied in future biomonitoring. Until now, phytobenthos have been intercalibrated by the vast majority (26 out of 28) of EU Member States (MS) in 54% of the total water bodies assessed and was the most commonly used BQE after benthic invertebrates (85% of water bodies), followed by fish (53%), macrophytes (27%) and phytoplankton (4%). To meet the WFD demands, numerous taxonomy-based quality indices have been developed among MS, presenting, however, uncertainties possibly related to species biogeography. Recent development of different types of quality indices (trait-based, DNA sequencing and predictive modeling) could provide more accurate results in biomonitoring, but should be validated and intercalibrated among MS before their wide application in water quality assessments.

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“…The results emphasize the need for consideration of long-term over short-term datasets to better assess aquatic response to climate and land-use changes. In contrast with midges, the presence of a higher abundance of diatom teratologies and a greater sensitivity to reductions in water quality suggests that diatoms may be more useful for assessment of impacts of olive mill wastewaters on stream ecosystems (Smeti et al, 2019). DNA barcoding, combined with high-throughput sequencing, showed rivers had more diverse assemblages comprised of oligosaprobic and oligotrophic taxa, in contrast with treated effluent sites with lower generic diversity comprised of polysaprobic taxa from motile guilds (Chonova et al, 2019).…”

Section: Algal Ecologymentioning

confidence: 99%

Substratum‐associated microbiota

Furey

Lee

Clemans

2020

Water Environment Research

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Highlights of new, interesting, and emerging research findings on substratum-associated microbiota covered from a survey of 2019 literature from primarily freshwaters provide insight into research trends of interest to the Water Environment Federation and others interested in benthic, aquatic environments. Coverage of topics on bottom-associated or attached algae and cyanobacteria, though not comprehensive, includes new methods, taxa new-to-science, nutrient dynamics, auto-and heterotrophic interactions, grazers, bioassessment, herbicides and other pollutants, metal contaminants, and nuisance, and bloom-forming and harmful algae. Coverage of bacteria, also not comprehensive, focuses on the ecology of benthic biofilms and microbial communities, along with the ecology of microbes like Caulobacter crescentus, Rhodobacter, and other freshwater microbial species. Bacterial topics covered also include metagenomics and metatranscriptomics, toxins and pollutants, bacterial pathogens and bacteriophages, and bacterial physiology. Readers may use this literature review to learn about or renew their interest in the recent advances and discoveries regarding substratum-associated microbiota. © 2020 Water Environment Federation • Practitioner points • This review of literature from 2019 on substratum-associated microbiota presents highlights of findings on algae, cyanobacteria, and bacteria from primarily freshwaters. • Coverage of algae and cyanobacteria includes findings on new methods, taxa new to science, nutrient dynamics, auto-and heterotrophic interactions, grazers, bioassessment, herbicides and other pollutants, metal contaminants, and nuisance, bloomforming and harmful algae. • Coverage of bacteria includes findings on ecology of benthic biofilms and microbial communities, the ecology of microbes, metagenomics and metatranscriptomics, toxins and pollutants, bacterial pathogens and bacteriophages, and bacterial physiology. • Highlights of new, noteworthy and emerging topics build on those from 2018 and will be of relevance to the Water Environment Federation and others interested in benthic, aquatic environments

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Effects of olive mill wastewater discharge on benthic biota in Mediterranean streams

Cited by 17 publications

References 36 publications

Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

Looking back, looking forward: a review of the new literature on diatom teratological forms (2010–2020)

Benthic Diatoms in River Biomonitoring—Present and Future Perspectives within the Water Framework Directive

Substratum‐associated microbiota

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