1
|
Zhang X, Yi Y, Yang Z. The long-term changes in food web structure and ecosystem functioning of a shallow lake: Implications for the lake management. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 301:113804. [PMID: 34626952 DOI: 10.1016/j.jenvman.2021.113804] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/16/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
The food web structure (FWS) and ecosystem functioning (EF) of lakes worldwide are impacted by multiple disturbances. The historical evolution of the FWS and EF are not well understood due to the lack of sufficient long-term records of biotic variations. This study reconstructed the food web models in the 1950s, 1980s, 1990s, 2000s, and 2010s for Baiyangdian Lake (BYDL), the largest shallow lake in northern China, using the Linear Inverse Modeling (LIM) and investigated EF in different periods. Our results confirmed that the FWS and EF of BYDL have undergone significant changes. The biomass of phytoplankton continuously increased, and the primary productivity of phytoplankton began to replace the primary productivity of submerged macrophytes in the 2000s and became the largest energy flow in the food web. Changes in the energy flow of primary producers are transmitted to high-trophic functional groups, which affects the diet composition of fish. Based on the ecological network analysis indices and food web stability indicators, it was concluded that after a turning point in the 1990s, the ecosystem showed initial stability and then gradually became unstable. Water level fluctuations and nutrient enrichment may be the key driving factors for changes in ecosystem state. Therefore, to maintain a good state of the ecosystem, we recommend implementing comprehensive management measures of hydrological management, nutrient-loading reduction, and biomanipulation. Furthermore, this study extended LIM to lake ecosystems, which may provide a new method for lake ecological environment management.
Collapse
Affiliation(s)
- Xiaoxin Zhang
- Ministry of Education Key Laboratory for Water and Sediment Science, School of Environment, Beijing Normal University, Beijing, 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Yujun Yi
- Ministry of Education Key Laboratory for Water and Sediment Science, School of Environment, Beijing Normal University, Beijing, 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
| | - Zhifeng Yang
- Ministry of Education Key Laboratory for Water and Sediment Science, School of Environment, Beijing Normal University, Beijing, 100875, China; Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, Guangdong, 510006, China.
| |
Collapse
|
2
|
Ren W, Wen Z, Cao Y, Wang H, Yuan C, Zhang X, Ni L, Xie P, Cao T, Li K, Jeppesen E. Cascading effects of benthic fish impede reinstatement of clear water conditions in lakes: A mesocosm study. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 301:113898. [PMID: 34626943 DOI: 10.1016/j.jenvman.2021.113898] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 09/20/2021] [Accepted: 10/03/2021] [Indexed: 06/13/2023]
Abstract
In shallow eutrophic lakes, submersed macrophytes are essential for maintaining a clear water state, and they are affected markedly by fishes directly through herbivory and indirectly by fish-invertebrate-periphyton complexity, a pathway that presently is not well understood in subtropical lakes but probably vital to lake managements. We conducted a mesocosm study involving benthic fish (Misgurnus anguillicaudatus), snails (Radix swinhoei) and submersed macrophyte (Vallisneria natans), aiming to examine whether benthic fish is detrimental to reestablishment of clear-water macrophyte-dominated state in eutrophic degraded lakes. In addition, we aimed to investigate the cascading effect that benthic fish might have on periphyton and phytoplankton and to what extent snails can alleviate this effect. Our results showed that benthic fish promoted nutrient release from the sediment and thereby facilitated the growth of phytoplankton and periphyton, leading to reduced growth of submerged macrophytes due to shading. Snails consumed the periphyton attached on the leaves of macrophytes, thereby being beneficial to the plant growth, albeit it could not fully counteract the adverse effects from benthic fish. The water quality indicators in terms of nutrients concentrations, phytoplankton biomass and light extinction coefficient along the water column was affected primarily by benthic fish, followed by macrophytes and snails. To target a clear-water condition, the water quality was best at the presence of macrophytes alone or in combination with snails, and worst at the presence of benthic fish. Our results implied that the removal of benthic fish should be a useful ecological restoration method for rehabilitation of submersed macrophytes and water quality improvement in subtropic, eutrophic, shallow lakes following external nutrient loading reduction.
Collapse
Affiliation(s)
- Wenjing Ren
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zihao Wen
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yu Cao
- Key Laboratory of Aquatic Botany and Watershed Ecology, Chinese Academy of Sciences, Wuhan Botanical Garden, Wuhan, 430074, China.
| | - Hao Wang
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Changbo Yuan
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xiaolin Zhang
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Leyi Ni
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Ping Xie
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Te Cao
- Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Kuanyi Li
- Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Erik Jeppesen
- Department of Bioscience and WATEC, Aarhus University, Vejlsøvej, Silkeborg, 8600, Denmark; Limnology Laboratory, Department of Biological Sciences and Centre for Ecosystem Research and Implementation, Middle East Technical University, Ankara, 06800, Turkey; Sino-Danish Centre for Education and Research (SDC), University of Chinese Academy of Sciences, 100049, Beijing, China; Institute of Marine Sciences, Middle East Technical University, 33731, Erdemli-Mersin, Turkey.
| |
Collapse
|
3
|
Individual diet specialization drives population trophic niche responses to environmental change in a predator fish population. FOOD WEBS 2021. [DOI: 10.1016/j.fooweb.2021.e00193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
4
|
Carmignani JR, Roy AH. Annual winter water‐level drawdowns influence physical habitat structure and macrophytes in Massachusetts, USA, lakes. Ecosphere 2021. [DOI: 10.1002/ecs2.3442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Jason R. Carmignani
- Massachusetts Cooperative Fish and Wildlife Research Unit Department of Environmental Conservation Organismic & Evolutionary Biology Program University of Massachusetts Amherst Massachusetts USA
| | - Allison H. Roy
- U.S. Geological Survey Massachusetts Cooperative Fish and Wildlife Research Unit Department of Environmental Conservation University of Massachusetts Amherst Massachusetts USA
| |
Collapse
|
5
|
Biological responses to extreme weather events are detectable but difficult to formally attribute to anthropogenic climate change. Sci Rep 2020; 10:14067. [PMID: 32826931 PMCID: PMC7442817 DOI: 10.1038/s41598-020-70901-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 07/29/2020] [Indexed: 11/16/2022] Open
Abstract
As the frequency and intensity of extreme events such as droughts, heatwaves and floods have increased over recent decades, more extreme biological responses are being reported, and there is widespread interest in attributing such responses to anthropogenic climate change. However, the formal detection and attribution of biological responses to climate change is associated with many challenges. We illustrate these challenges with data from the Elbe River floodplain, Germany. Using community turnover and stability indices, we show that responses in plant, carabid and mollusc communities are detectable following extreme events. Community composition and species dominance changed following the extreme flood and summer heatwave of 2002/2003 (all taxa); the 2006 flood and heatwave (molluscs); and after the recurring floods and heatwave of 2010 and the 2013 flood (plants). Nevertheless, our ability to attribute these responses to anthropogenic climate change is limited by high natural variability in climate and biological data; lack of long-term data and replication, and the effects of multiple events. Without better understanding of the mechanisms behind change and the interactions, feedbacks and potentially lagged responses, multiple-driver attribution is unlikely. We discuss whether formal detection and/or attribution is necessary and suggest ways in which understanding of biological responses to extreme events could progress.
Collapse
|
6
|
Roubeau Dumont E, Larue C, Pujol B, Lamaze T, Elger A. Environmental variations mediate duckweed (Lemna minor L.) sensitivity to copper exposure through phenotypic plasticity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:14106-14115. [PMID: 30852756 DOI: 10.1007/s11356-019-04630-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
Environmentally mediated sensitivity of Lemna minor to copper (Cu) was evaluated for the first time in three experiments: the effects of two levels of nutrient concentration, light irradiance or Cu pre-exposure were tested. Various Cu concentrations (ranging from 0.05 to 0.25 mg/L) were used to assess the sensitivity of L. minor to this metal, using one common strain previously acclimatized to two different levels of light intensity, nutrient enrichment and Cu pre-exposure. Our results showed a phenotypic plastic response of the relative growth rates based on frond number and fresh mass production, and maximum quantum yield of photosystem II (Fv/Fm). Growth was affected by the three environmental conditions both prior and during Cu exposure, whereas Fv/Fm was mostly affected during Cu exposure. Copper significantly influenced all the parameters measured in the three experiments. Environmental conditions significantly modified L. minor sensitivity to Cu in all experiments, with up to twofold difference depending on the treatment. Growth rate was the parameter that was most impacted. Our study revealed for the first time the existence of phenotypic plasticity in L. minor sensitivity to chemical contamination, and implies that environmental context needs to be taken into account for a relevant risk assessment.
Collapse
Affiliation(s)
- Eva Roubeau Dumont
- EcoLab, CNRS, Université de Toulouse, Toulouse, France.
- EcoLab, Campus INPT-ENSAT, Avenue de l'Agrobiopole - BP 32607, 31326, Castanet Tolosan Cedex, France.
| | - Camille Larue
- EcoLab, CNRS, Université de Toulouse, Toulouse, France
| | - Benoît Pujol
- Laboratoire Évolution & Diversité Biologique (EDB UMR 5174), CNRS, IRD, UPS, Université Fédérale de Toulouse Midi-Pyrénées, Toulouse, France
- EPHE, CNRS, UPVD, PSL Research University, USR 3278 CRIOBE, F-66360, Perpignan, France
| | - Thierry Lamaze
- Laboratoire CESBIO, CNRS, IRD, CNES, UPS, Université de Toulouse, Toulouse, France
| | - Arnaud Elger
- EcoLab, CNRS, Université de Toulouse, Toulouse, France
| |
Collapse
|
7
|
Trade-offs and Synergies in the Structural and Functional Characteristics of Leaves Photosynthesizing in Aquatic Environments. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/978-3-319-93594-2_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
|
8
|
Tunney TD, McCann KS, Jarvis L, Lester NP, Shuter BJ. Blinded by the light? Nearshore energy pathway coupling and relative predator biomass increase with reduced water transparency across lakes. Oecologia 2018; 186:1031-1041. [DOI: 10.1007/s00442-017-4049-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 12/16/2017] [Indexed: 11/28/2022]
|
9
|
Beauvais-Flück R, Gimbert F, Méhault O, Cosio C. Trophic fate of inorganic and methyl-mercury in a macrophyte-chironomid food chain. JOURNAL OF HAZARDOUS MATERIALS 2017; 338:140-147. [PMID: 28550790 DOI: 10.1016/j.jhazmat.2017.05.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 06/07/2023]
Abstract
Dietary transfer of mercury (Hg) is central for its effects on higher trophic animals, nonetheless, its driving parameters and characteristics are not well understood. Here we measured Hg species transfer (uptake) from the macrophyte Elodea nuttallii -mimicking tissues incorporation in sediments after decay- to Chironomus riparius. Methyl-Hg (MMHg) was more transferable than inorganic Hg (IHg) from plant's intracellular and cell wall compartments. After 10-d-long exposure, MMHg was predominantly found in MMHg form in the cytosolic compartment (S) of chironomids, while IHg showed similar concentrations in S and insoluble debris (P) compartments. After cessation of Hg species exposure (depuration), only MMHg resulted in a bioaccumulation factor >1. Toxicokinetics modelling indicated a demethylation of MMHg in the S fraction and its concomitant storage in the P fraction as IHg during both uptake and depuration, revealing an elimination and detoxification mechanism. Our data support that MMHg is more transferable than IHg to sensitive subcellular targets as well as bioavailable fraction in chironomids, in line with field studies showing higher MMHg transfer than IHg in food webs. Hence our data point out macrophytes as a potential Hg source to benthic food webs to be considered for enhancing aquatic environment protection during phytoremediation programs.
Collapse
Affiliation(s)
- Rebecca Beauvais-Flück
- Department F.-A. Forel for Environmental and Aquatic Sciences, Earth and Environmental Sciences, Faculty of Sciences, University of Geneva, 66 bd Carl-Vogt, CH-1211 Geneva 4, Switzerland.
| | - Frédéric Gimbert
- Laboratoire Chrono-environnement, UMR 6249 CNRS/Université Bourgogne Franche-Comté, 16 route de Gray, F-25030 Besançon Cedex, France.
| | - Ophélie Méhault
- Department F.-A. Forel for Environmental and Aquatic Sciences, Earth and Environmental Sciences, Faculty of Sciences, University of Geneva, 66 bd Carl-Vogt, CH-1211 Geneva 4, Switzerland.
| | - Claudia Cosio
- Department F.-A. Forel for Environmental and Aquatic Sciences, Earth and Environmental Sciences, Faculty of Sciences, University of Geneva, 66 bd Carl-Vogt, CH-1211 Geneva 4, Switzerland.
| |
Collapse
|
10
|
Ziegler JP, Gregory-Eaves I, Solomon CT. Refuge increases food chain length: modeled impacts of littoral structure in lake food webs. OIKOS 2017. [DOI: 10.1111/oik.03517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Jacob P. Ziegler
- Dept of Natural Resource Sciences, McGill Univ.; Montreal, 21111 Lakeshore Road Ste. Anne de Bellevue; QC H9X 3V9 Canada
| | | | | |
Collapse
|
11
|
Li Y, Xie P, Zhao D, Zhu T, Guo L, Zhang J. Eutrophication strengthens the response of zooplankton to temperature changes in a high-altitude lake. Ecol Evol 2016; 6:6690-6701. [PMID: 27777740 PMCID: PMC5058538 DOI: 10.1002/ece3.2308] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 06/13/2016] [Accepted: 06/16/2016] [Indexed: 11/06/2022] Open
Abstract
To assess whether and how zooplankton communities respond to variations in temperature and how these assemblages change with eutrophication, we performed a large-scale, monthly survey from August 2011 to July 2012 to determine the seasonal and spatial variations in these communities in a high-altitude lake. A detrended correspondence analysis and a path analysis demonstrated that temperature and chlorophyll a were important factors influencing zooplankton. The path diagram showed that Daphnia was negatively affected directly by chlorophyll a and indirectly by temperature, whereas Bosmina was directly and positively affected by temperature. Daphnia spp. decreased in both absolute and relative biomass during warm seasons, whereas Bosmina spp. showed the opposite trend. Moreover, the lowest Daphnia spp. biomass was observed in the southern region, which was the most eutrophic. Our results indicate that increasing temperatures will continue to shift the dominant genus from Daphnia to Bosmina, and this change will be exacerbated by eutrophication. In addition, the zooplankton of Lake Erhai have shifted to smaller species over time as temperature and eutrophication have increased, which implies that zooplankton succession to small cladocerans may be markedly accelerated under further climate change and the increased eutrophication that has been observed in recent decades.
Collapse
Affiliation(s)
- Yun Li
- Fisheries College Huazhong Agricultural University Wuhan 430070 Hubei China; Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
| | - Ping Xie
- Fisheries College Huazhong Agricultural University Wuhan 430070 Hubei China; Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
| | - Dandan Zhao
- Fisheries College Huazhong Agricultural University Wuhan 430070 Hubei China; Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
| | - Tianshun Zhu
- Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
| | - Longgen Guo
- Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
| | - Jing Zhang
- Fisheries College Huazhong Agricultural University Wuhan 430070 Hubei China; Donghu Experimental Station of Lake Ecosystems State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
| |
Collapse
|