De novo transcriptomic analysis predicts the effects of phenolic compounds in Ba River on the liver of female sharpbelly (Hemiculter lucidus)

Guo, Jiahua; Mo, Jiezhang; Zhao, Qian; Han, Qizhi; Kanerva, Mirella; Iwata, Hisato; Li, Qi

doi:10.1016/j.envpol.2020.114642

Cited by 9 publications

(10 citation statements)

References 49 publications

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“…Similar results have been described for urban effluents in Africa, where an effects-directed bioassay in Zimbabwe detected estrogenic effects by analyzing similar endpoints to our studies in native fish (77). Similar findings in China and other Asian countries also reveal that the proper use of transcriptomic techniques could approach the identification of the causative chemicals of the endocrine effects revealed by native fish exposed to urban effluents (78). The need to strengthen the integrated analysis for EDCs in developing regions is clear, which underscores this as a global issue.…”

Section: Discussionsupporting

confidence: 89%

“…It is necessary to understand that fish are constantly subjected to environmental stress (21,22) before planning EDC effect studies, including changes in temperature, hypoxia, sediment loads, flow rate, among others. To understand and to have the ability to extrapolate the effects observed in the individual organism with a chemical or mixture of chemicals having endocrine disruptive properties, cellular and physiological seasonal variations associated with changes in metabolic rates and fish reproductive status must be taken into consideration when evaluating the impacts on individuals and populations (9,21,33,(66)(67)(68)(69)(70)(71)(72)(73)(74)(75)(76)(77)(78)80).…”

Section: Discussionmentioning

confidence: 99%

“…As already mentioned, for Chile there are few studies that detail reproductive aspects of freshwater fish beyond the spawning season ( 66 , 67 , 78 , 80 ). The paucity of such an understanding is a major deficiency when evaluating the effects of EDCs.…”

Section: Discussionmentioning

confidence: 99%

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Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters

et al. 2021

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Industrial wastewaters and urban discharges contain complex mixtures of chemicals capable of impacting reproductive performance in freshwater fish, called endocrine-disrupting compounds (EDCs). In Chile, the issue was highlighted by our group beginning over 15 years ago, by analyzing the impacts of pulp and paper mill effluents (PPME) in the Biobio, Itata, and Cruces River basins. All of the rivers studied are important freshwater ecosystems located in the Mediterranean region of Central Chile, each with a unique fish biodiversity. Sequentially, we developed a strategy based on laboratory assays, semicontrolled-field experiments (e.g., caging) and wild fish population assessments to explore the issue of reproductive impacts on both introduced and native fish in Chile. The integration of watershed, field, and laboratory studies was effective at understanding the endocrine responses in Chilean freshwater systems. The studies demonstrated that regardless of the type of treatment, pulp mill effluents can contain compounds capable of impacting endocrine systems. Urban wastewater treatment plant effluents (WWTP) were also investigated using the same integrated strategy. Although not directly compared, PPME and WWTP effluent seem to cause similar estrogenic effects in fish after waterborne exposure, with differing intensities. This body of work underscores the urgent need for further studies on the basic biology of Chilean native fish species, and an improved understanding on reproductive development and variability across Chilean ecosystems. The lack of knowledge of the ontogeny of Chilean fish, especially maturation and sexual development, with an emphasis on associated habitats and landscapes, are impediment factors for their conservation and protection against the threat of EDCs. The assessment of effects on native species in the receiving environment is critical for supporting and designing protective regulations and remediation strategies, and for conserving the unique Chilean fish biodiversity.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

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Endocrine Disruptor Impacts on Fish From Chile: The Influence of Wastewaters

et al. 2021

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“…The dominant wind direction is northeast, and the maximum wind speed is 2.4 m/min. Annual average humidity is 69.6%, annual sunshine is 2058.2 h. The annual average evaporation is 852.7 mm, with the largest evaporation from June to August, accounting for 43.5% of the annual evaporation [13]. Bahe River provides a rainwater discharge in the monsoon and is primarily used for farmland irrigation, and landscape channel development.…”

Section: Study Areamentioning

confidence: 99%

“…3). Some literatures showed that many species of bacteroidetes live in the intestines of humans and animals and sometimes become pathogens, in feces, Bacteroides is the main microorganism in terms of the number of cells, flavobacteriaceae exist mainly in aquatic environments, which can degrade cellulose [56,13,41]. Bacteroidota were all detected in the upper, middle and lower reaches of the Bahe River Basin, it showed that domestic sewage or aquaculture wastewater (such as feces) was the important source in the Bahe River Basin.…”

Section: Microbial Community Composition Analysis In Sediments Of Bah...mentioning

confidence: 99%

Pattern changes of microbial communities in urban river affected by anthropogenic activities and their environmental driving mechanisms

et al. 2022

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The microbial community structure of sediments in the Bahe River Basin, China was studied using a high-throughput sequencing platform and PCR amplification to investigate the pattern changes in microbial communities in urban rivers affected by anthropogenic activities and their environmental driving mechanisms. The results demonstrated that the average total nitrogen and total phosphorus in the sediments were 524 and 734 mg/kg, respectively. The T, COD and $${\text{NH}}_{4}^{ + }$$ NH 4 + -N of the water and the moisture content of the sediments has significantly impacted on the microbial community structure. Twenty microbial species with a relative abundance > 1% in the sediments of the river were observed, accounting for 95–99% of the total microbial community. The primary species were Proteobacteria (13.86–69.14%), Firmicutes (1.45–58.33%), Chloroflexi (3.68–26.18%), Actinobacteria (2.7–21.51%), Acidobacteria (0.73–16.36%), Bacteroides (1.53–14.11%), and Thermodesulfobacteria (0.1–8.9%), accounting for over 90% of the total microbial community. At the class level, the primary species were γ-proteobacteria, Alphaproteobacteria, Anaerolineae, Bacillus, Bacteroidota, Actinobacteriota, and Clostridia, accounting for over 70% of the total microbial community. Our results provide direct evidence for a link between microbial community structure and environment factors. This evidence demonstrates that sediment microorganisms can be applied to evaluate urban rivers pollution levels, which can provide a scientific basis for pollution control and management in the urban river affected by human activities.

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