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Wang S, Wu D, Song Y, Wang T, Fan S, Wu E, Chen N, Xia W, Xu MN, Chen Z, Wen J, Zhang Y, Mo L, Xiang L. Application of environmental DNA metabarcoding to identify fish community characteristics in subtropical river systems. Ecol Evol 2024; 14:e11214. [PMID: 38725828 PMCID: PMC11079634 DOI: 10.1002/ece3.11214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 02/28/2024] [Accepted: 03/15/2024] [Indexed: 05/12/2024] Open
Abstract
Fish are vital in river ecosystems; however, traditional investigations of fish usually cause ecological damage. Extracting DNA from aquatic environments and identifying DNA sequences offer an alternative, noninvasive approach for detecting fish species. In this study, the effects of environmental DNA (eDNA), coupled with PCR and next-generation sequencing, and electrofishing for identifying fish community composition and diversity were compared. In three subtropical rivers of southern China, fish specimens and eDNA in water were collected along the longitudinal (upstream-downstream) gradient of the rivers. Both fish population parameters, including species abundance and biomass, and eDNA OTU richness grouped 38 sampling sites into eight spatial zones with significant differences in local fish community composition. Compared with order-/family-level grouping, genus-/species-level grouping could more accurately reveal the differences between upstream zones I-III, midstream zones IV-V, and downstream zones VI-VIII. From the headwaters to the estuary, two environmental gradients significantly influenced the longitudinal distribution of the fish species, including the first gradient composed of habitat and physical water parameters and the second gradient composed of chemical water parameters. The high regression coefficient of alpha diversity between eDNA and electrofishing methods as well as the accurate identification of dominant, alien, and biomarker species in each spatial zone indicated that eDNA could characterize fish community attributes at a level similar to that of traditional approaches. Overall, our results demonstrated that eDNA metabarcoding can be used as an effective tool for revealing fish composition and diversity, which is important for using the eDNA technique in aquatic field monitoring.
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Affiliation(s)
- Sai Wang
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Dong‐Hai Wu
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
- College of Ecology and EnvironmentHainan UniversityHaikouChina
| | - Yong‐Duo Song
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Tuan‐Tuan Wang
- College of Ecology and EnvironmentHainan UniversityHaikouChina
- Key Laboratory of Agro‐Forestry Environmental Processes and Ecological Regulation of Hainan ProvinceHainan UniversityHaikouChina
| | - Shi‐Di Fan
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - En‐Ni Wu
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Nan‐Lin Chen
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Wen‐Tong Xia
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Min N. Xu
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Zhong‐Bing Chen
- Department of Applied·Ecology, Faculty of Environmental SciencesCzech University of Life Sciences PraguePraha‐SuchdolCzech Republic
| | - Jing Wen
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
- Hainan Qingxiao Environmental Testing Co., Ltd.SanyaChina
- Hainan Qianchao Ecological Technology Co., Ltd.SanyaChina
| | - Yang Zhang
- Shenzhen Guanghuiyuan Environment Water Co., Ltd.ShenzhenChina
| | - Ling Mo
- Hainan Research Academy of Environmental SciencesHaikouChina
| | - Lei Xiang
- Department of EcologyJinan UniversityGuangzhouChina
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Liang J, Xiong S, He C, Song Z, Yang S, Ma D, Yan W, Wang H, Tahir R, Han M. The organism fate of inland freshwater system under micro-/nano-plastic pollution: A review of past decade. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106774. [PMID: 38000134 DOI: 10.1016/j.aquatox.2023.106774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 11/26/2023]
Abstract
Micro- and nano-plastics (MPs/NPs) are characterized by their small size and extensive surface area, making them global environmental pollutants with adverse effects on organisms at various levels, including organs, cells, and molecules. Freshwater organisms, such as microalgae, emerging plants, zooplankton, benthic species, and fish, experience varying impacts from MPs/NPs, which are prevalent in both terrestrial and aquatic inland environments. MPs/NPs significantly impact plant physiological processes, including photosynthesis, antioxidant response, energy metabolism, and nitrogen removal. Extended exposure and ingestion to MPs/NPs might cause metabolic and behavioral deviations in zooplankton, posing an extinction risk. Upon exposure to MPs/NPs, both benthic organisms and fish display behavioral and metabolic disturbances, due to oxidative stress, neural toxicity, intestinal damage, and metabolic changes. Results from laboratory and field investigations have confirmed that MPs/NPs can be transported across multiple trophic levels. Moreover, MPs/NPs-induced alterations in zooplankton populations can impede energy transfer, leading to food scarcity for filter-feeding fish, larvae of benthic organism and fish, thus jeopardizing aquatic ecosystems. Furthermore, MPs/NPs can harm the nervous systems of aquatic organisms, influencing their feeding patterns, circadian rhythms, and mobility. Such behavioral alterations might also introduce unforeseen ecological risks. This comprehensive review aims to explore the consequences of MPs/NPs on freshwater organisms and their interconnected food webs. The investigation encompasses various aspects, including behavioral changes, alterations in physiology, impacts on metabolism, transgenerational effects, and the disruption of energy transfer within the ecosystem. This review elucidated the physiological and biochemical toxicity of MPs/NPs on freshwater organisms, and the ensuing risks to inland aquatic ecosystems.
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Affiliation(s)
- Ji Liang
- Chengdu Jncon Environmental Protection Technology Co., Ltd, Chengdu, Sichuan 611130, China; School of Humanities, University Sains Malaysia, Minden, Penang 11800, Malaysia
| | - Sen Xiong
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Chengdu Jncon Environmental Protection Technology Co., Ltd, Chengdu, Sichuan 611130, China
| | - Chunlin He
- Chengdu Jncon Environmental Protection Technology Co., Ltd, Chengdu, Sichuan 611130, China; College of Life Sciences, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhaobin Song
- College of Life Sciences, Sichuan University, Chengdu, Sichuan 610041, China
| | - Song Yang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Daiqiang Ma
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Wenchu Yan
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Chengdu Jncon Environmental Protection Technology Co., Ltd, Chengdu, Sichuan 611130, China
| | - Hong Wang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Rabia Tahir
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; Department of Zoology, The Islamia University of Bahawalpur Pakistan, Punjab 63100, Pakistan
| | - Mingming Han
- Centre for marine and coastal studies, University Sains Malaysia, Minden, Penang 11800, Malaysia.
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Zhang J, Xu J, Tan X, Zhang Q. Nitrogen loadings affect trophic structure in stream food webs on the Tibetan Plateau, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157018. [PMID: 35772539 DOI: 10.1016/j.scitotenv.2022.157018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
Anthropogenic activities, such as agricultural and industrial development, have increased nutrient inputs into waterways, which affect trophic interactions and the flow of energy through food webs in the aquatic ecosystems. However, the responses of food web structure and function to specific anthropogenic stressors in the alpine stream systems remain unclear. Here, we studied the stream food webs in the Lhasa River on the Tibetan Plateau, China. We measured the isotopic ratios (δ13C and δ15N) of macroinvertebrate and fish functional feeding groups (FFGs) and their basal resources in the streams. Dietary contributions of basal resources to consumers and food web metrics including trophic length, diversity, and redundancy were used to quantify changes in stream food webs in response to anthropogenic disturbance. Dietary analysis showed that allochthonous resources contributed more than autochthonous resources to macroinvertebrate primary consumers regardless of the disturbance intensity in the adjacent land areas. Anthropogenic activities increased the δ15N values in epilithic algae and isotopic variation in basal resources and fish but reduced the trophic length and redundancy (i.e., fewer species or taxon at each trophic level) in food webs. Additionally, the total nitrogen concentration in waters was the most important environmental variable affecting trophic diversity and redundancy. Therefore, the reduction of nitrogen inputs into streams is critical for sustainable river management and biodiversity conservation in the streams on the Tibetan Plateau.
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Affiliation(s)
- Jian Zhang
- Research Center for Ecology and Environment of Qinghai-Tibetan Plateau, Tibet University, Lhasa 850000, Tibet, China; College of Science, Tibet University, Lhasa 850000, Tibet, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan, Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Jilei Xu
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan, Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Xiang Tan
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan, Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
| | - Quanfa Zhang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan, Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
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Wang S, Wang T, Xia W, Chen Z, Stewart SD, Yang F, Cheng G, Wang X, Wang D, Xie S. Longitudinal pattern of resource utilization by aquatic consumers along a disturbed subtropical urban river: Estimating the relative contribution of resources with stable isotope analysis. Ecol Evol 2021; 11:16763-16775. [PMID: 34938471 PMCID: PMC8668758 DOI: 10.1002/ece3.8304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/30/2021] [Accepted: 10/15/2021] [Indexed: 11/30/2022] Open
Abstract
The utilization of food resources by aquatic consumers reflects the structure and functioning of river food webs. In lotic water systems, where food availability and predator-prey relationships vary with gradient changes in physical conditions, understanding diet assimilation by local communities is important for ecosystem conservation. In the subtropical Liuxi River, southern China, the relative contribution of basal resources to the diet assimilation of functional feeding groups (FFGs) was determined by stable carbon (13C) and nitrogen (15N) isotope analyses. The output of Bayesian mixing models showed that diatom-dominated periphyton (epilithic biofilm), aquatic C3 plants (submerged hydrophytes), and suspended particulate organic matter (SPOM) associated with terrestrial C3 plants contributed the most to the diet assimilation of FFGs in the upper, middle, and lower reaches, respectively. The relative contribution of consumer diet assimilation was weighted by the biomass (wet weight, g/m2) of each FFG to reflect resource utilization at the assemblage level. From the upper to the lower reaches, the spatial variation in the diet assimilation of fish and invertebrate assemblages could be summarized as a longitudinal decrease in periphyton (from 57%-76% to <3%) and an increase in SPOM (from <7% to 51%-68%) with a notable midstream increase in aquatic C3 plants (23%-48%). These results indicate that instream consumers in the Liuxi River rely more on autochthonous production (e.g., periphyton and submerged hydrophytes) than on terrestrially derived allochthonous matter (e.g., terrestrial plants). The pattern of resource utilization by consumers in the mid-upper Liuxi River is consistent with findings from other open subtropical and neotropical rivers and provides evidence for the riverine productivity model. Our study indicates that protecting inherent producers in rivers (e.g., periphyton and submerged hydrophytes) and restoring their associated habitats (e.g., riffles with cobble substrate) are conducive to aquatic ecosystem management.
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Affiliation(s)
- Sai Wang
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Tuan‐Tuan Wang
- College of Ecology and EnvironmentHainan UniversityHaikouChina
| | - Wen‐Tong Xia
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Zhong‐Bing Chen
- Department of Applied Ecology, Faculty of Environmental SciencesCzech University of Life Sciences PraguePragueCzech Republic
| | | | - Feng‐Juan Yang
- China Water Resources Pearl River Planning Surveying & Designing Co., Ltd.GuangzhouChina
| | - Gong Cheng
- Shenzhen Academy of Environmental SciencesShenzhenChina
| | - Xiao‐Di Wang
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Ding‐Ying Wang
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
| | - Song‐Guang Xie
- State Key Laboratory of Marine Resource Utilization in South China SeaHainan UniversityHaikouChina
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