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De-Carli BP, Cardoso-Silva S, Manzi A, Moschini-Carlos V, Pompêo M. Zooplankton functional diversity in subtropical reservoirs of distinct trophic states (São Paulo state, Brazil). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35779-35788. [PMID: 38744760 DOI: 10.1007/s11356-024-33621-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 05/05/2024] [Indexed: 05/16/2024]
Abstract
Studies on functional traits of aquatic communities are useful for understanding the ecosystem dynamics as well as the diversity of ecological niches. Here, we characterize zooplankton functional groups and which limnological factors are responsible to changes in traits. Water samples were collected to evaluate limnological parameters and vertical hauls with plankton net (68 μm) were performed to characterize the community in seven reservoirs (Itupararanga, Atibainha, Salto Grande, Rio Grande, Igaratá, Barra Bonita, and Broa, São Paulo state, Brazil). Each species identified was classified according to a trophic group, reproduction mode, body length, habitat, and feeding habitats. Our results showed a predominance of pelagic suspensory herbivores with cilia (31%) followed by pelagic herbivore suspension filter feeders (17%) and raptorial omnivores (15.38%). The other individuals were categorized as pelagic herbivore suspension with oral device (12.3%), littoral herbivores suspensive with cilia (12.3%), pelagic-sucking herbivores (9.2%), and littoral grazing herbivores (3%). The dominance of herbivores may be influenced by the availability of nutrients, influencing their food sources. The abundance of omnivores engaged in predatory behavior can be attributed to disponible prey, thereby exerting significant repercussions on the organization of biological communities.
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Affiliation(s)
- Bruno Paes De-Carli
- Environmental Sciences Program, Institute of Science and Technology, State University of Sao Paulo (UNESP), São Paulo, Brazil.
| | | | - Agatha Manzi
- Biodiversity of Coastal Environments Program, Biosciences Institute, State University of São Paulo (UNESP), São Vicente, Brazil
| | - Viviane Moschini-Carlos
- Environmental Sciences Program, Institute of Science and Technology, State University of Sao Paulo (UNESP), São Paulo, Brazil
| | - Marcelo Pompêo
- Ecology Department, Biosciences Institute, University of São Paulo (USP), São Paulo, 05508-090, Brazil
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Cardoso-Silva S, Mizael JSS, Frascareli D, de Lima Ferreira PA, Figueira RCL, Pompêo M, Vicente E, Moschini-Carlos V. Past environmental changes: using sedimentary photosynthetic pigments to enhance subtropical reservoir management. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:22994-23010. [PMID: 38413525 DOI: 10.1007/s11356-024-32574-w] [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: 09/29/2023] [Accepted: 02/17/2024] [Indexed: 02/29/2024]
Abstract
The historical impacts of eutrophication processes were investigated in six subtropical reservoirs (São Paulo, Brazil) using a paleolimnological approach. We questioned whether the levels of pigment indicators of algal biomass could provide information about trophic increase and whether carotenoid pigments could offer additional insights. The following proxies were employed: organic matter, total phosphorus, total nitrogen, photosynthetic pigments (by high-performance liquid chromatography), sedimentation rates, and geochronology (by 210 Pb technique). Principal component analysis indicated a gradient of eutrophication. In eutrophic reservoirs (e.g., Rio Grande and Salto Grande), levels of lutein and zeaxanthin increased over time, suggesting growth of Chlorophyta and Cyanobacteria. These pigments were significantly associated with algal biomass, reflecting their participation in phytoplankton composition. In mesotrophic reservoirs, Broa and Itupararanga, increases and significative linear correlations (r > 0.70) between pigments and nutrients are mainly linked to agricultural and urban activities. In the oligotrophic reservoir Igaratá, lower pigment and nutrient levels reflected lesser human impact and good water quality. This study underscores eutrophication's complexity across subtropical reservoirs. Photosynthetic pigments associated with specific algal groups were informative, especially when correlated with nutrient data. The trophic increase, notably in the 1990s, may have been influenced by neoliberal policies. Integrated pigment and geochemical analysis offers a more precise understanding of eutrophication changes and their ties to human factors. Such research can aid environmental monitoring and sustainable policy development.
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Affiliation(s)
- Sheila Cardoso-Silva
- Environmental Sciences Program, Institute of Science and Technology, State University of Sao Paulo (UNESP), Sorocaba, SP, Brazil.
| | - Juliana Soares Silva Mizael
- Environmental Sciences Program, Institute of Science and Technology, State University of Sao Paulo (UNESP), Sorocaba, SP, Brazil
| | - Daniele Frascareli
- Environmental Sciences Program, Institute of Science and Technology, State University of Sao Paulo (UNESP), Sorocaba, SP, Brazil
| | | | | | - Marcelo Pompêo
- Ecology Department, Biosciences Institute, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Eduardo Vicente
- Microbiology and Ecology Department, Valencia University, Burjassot, Valencia, Spain
| | - Viviane Moschini-Carlos
- Environmental Sciences Program, Institute of Science and Technology, State University of Sao Paulo (UNESP), Sorocaba, SP, Brazil
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Van de Waal DB, Gsell AS, Harris T, Paerl HW, de Senerpont Domis LN, Huisman J. Hot summers raise public awareness of toxic cyanobacterial blooms. WATER RESEARCH 2024; 249:120817. [PMID: 38086207 DOI: 10.1016/j.watres.2023.120817] [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: 05/31/2023] [Revised: 10/13/2023] [Accepted: 10/29/2023] [Indexed: 01/03/2024]
Abstract
Water quality of eutrophic lakes is threatened by harmful cyanobacterial blooms, which are favored by summer heatwaves and expected to intensify with global warming. Societal demands on surface water for drinking, irrigation and recreation are also highest in summer, especially during dry and warm conditions. Here, we analyzed trends in online searches to investigate how public awareness of cyanobacterial blooms is impacted by temperature in nine different countries over almost twenty years. Our findings reveal large seasonal and interannual variation, with more online searches for harmful cyanobacteria in temperate regions during hot summers. Online searches and media attention increased even more steeply with temperature than the incidence of cyanobacterial blooms, presumably because lakes attract more people during warm weather. Overall, our study indicates that warmer summers not only increase cyanobacterial bloom incidence, but also lead to a pronounced increase of the public awareness of toxic cyanobacterial blooms.
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Affiliation(s)
- Dedmer B Van de Waal
- Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, the Netherlands; Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands.
| | - Alena S Gsell
- Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, the Netherlands; Department of Environmental Biology, Institute of Environmental Sciences (CML), Leiden University, Leiden, the Netherlands
| | - Ted Harris
- Kansas Biological Survey and Center for Ecological Research, Lawrence, KS 66047 United States
| | - Hans W Paerl
- University of North Carolina at Chapel Hill, Institute of Marine Sciences, Morehead City, NC 28557, United States
| | - Lisette N de Senerpont Domis
- Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, the Netherlands; Pervasive systems group, Faculty of electrical engineering, mathematics and computer science, University of Twente, Enschede, the Netherlands; Department of Water Resources, Faculty of Geo-information science and Earth observation, University of Twente, Enschede, the Netherlands
| | - Jef Huisman
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
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Marcondes MA, Pessôa R, José da Silva Duarte A, Clissa PB, Sanabani SS. Temporal patterns of bacterial communities in the Billings Reservoir system. Sci Rep 2024; 14:2062. [PMID: 38267511 PMCID: PMC10808195 DOI: 10.1038/s41598-024-52432-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/18/2024] [Indexed: 01/26/2024] Open
Abstract
In this study, high-throughput sequencing of 16S rRNA amplicons and predictive PICRUSt functional profiles were used to perform a comprehensive analysis of the temporal bacterial distribution and metabolic functions of 19 bimonthly samples collected from July 2019 to January 2020 in the surface water of Billings Reservoir, São Paulo. The results revealed that most of the bacterial 16S rRNA gene sequences belonged to Cyanobacteria and Proteobacteria, which accounted for more than 58% of the total bacterial abundance. Species richness and evenness indices were highest in surface water from summer samples (January 2020), followed by winter (July 2019) and spring samples (September and November 2019). Results also showed that the highest concentrations of sulfate (SO4-2), phosphate (P), ammonia (NH3), and nitrate (NO3-) were detected in November 2019 and January 2020 compared with samples collected in July and September 2019 (P < 0.05). Principal component analysis suggests that physicochemical factors such as pH, DO, temperature, and NH3 are the most important environmental factors influencing spatial and temporal variations in the community structure of bacterioplankton. At the genus level, 18.3% and 9.9% of OTUs in the July and September 2019 samples, respectively, were assigned to Planktothrix, while 14.4% and 20% of OTUs in the November 2019 and January 2020 samples, respectively, were assigned to Microcystis. In addition, PICRUSt metabolic analysis revealed increasing enrichment of genes in surface water associated with multiple metabolic processes rather than a single regulatory mechanism. This is the first study to examine the temporal dynamics of bacterioplankton and its function in Billings Reservoir during the winter, spring, and summer seasons. The study provides comprehensive reference information on the effects of an artificial habitat on the bacterioplankton community that can be used to interpret the results of studies to evaluate and set appropriate treatment targets.
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Affiliation(s)
- Marta Angela Marcondes
- Post-Graduation Program in Translational Medicine, Department of Medicine, Federal University of São Paulo, São Paulo, 04021-001, Brazil
| | - Rodrigo Pessôa
- Post-Graduation Program in Translational Medicine, Department of Medicine, Federal University of São Paulo, São Paulo, 04021-001, Brazil
| | - Alberto José da Silva Duarte
- Laboratory of Dermatology and Immunodeficiency, Department of Dermatology LIM 56, Faculty of Medicine, University of São Paulo, São Paulo, 05403-000, Brazil
| | | | - Sabri Saeed Sanabani
- Laboratory of Medical Investigation 03 (LIM03), Clinics Hospital, Faculty of Medicine, University of São Paulo, São Paulo, 05403-000, Brazil.
- Laboratory of Dermatology and Immunodeficiency, LIM56/03, Instituto de Medicina Tropical de São Paulo, Faculdade de Medicina da Universidade de São Paulo, Av. Dr. Eneas de Carvalho Aguiar, 470 3º Andar, São Paulo, 05403 000, Brazil.
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dos Reis GC, de Carvalho GHA, Vilar MCP, Azevedo SMFDOE, Ferrão-Filho ADS. Saxitoxin-Producing Raphidiopsis raciborskii (Cyanobacteria) Constrains Daphnia Fitness and Feeding Rate despite High Nutritious Food Availability. TOXICS 2023; 11:693. [PMID: 37624198 PMCID: PMC10458173 DOI: 10.3390/toxics11080693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/19/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023]
Abstract
Changes in food quality can dramatically impair zooplankton fitness, especially in eutrophic water bodies where cyanobacteria are usually predominant. Cyanobacteria are considered a food with low nutritional value, and some species can produce bioactive secondary metabolites reported as toxic to zooplankton. Considering that cyanobacteria can limit the survival, growth and reproduction of zooplankton, we hypothesized that the dietary exposure of neotropical Daphnia species (D. laevis and D. gessneri) to saxitoxin-producing cyanobacteria impairs Daphnia feeding rates and fitness regardless of a high availability of nutritious algae. Life table and grazing assays were conducted with different diets: (1) without nutritional restriction, where neonates were fed with diets at a constant green algae biomass (as a nutritious food source), and an increasing cyanobacterial concentration (toxic and poor food source), and (2) with diets consisting of different proportions of green algae (nutritious) and cyanobacteria (poor food) at a total biomass 1.0 mg C L-1. In general, the presence of high proportions of cyanobacteria promoted a decrease in Daphnia somatic growth, reproduction and the intrinsic rate of population increase (r) in both diets with more pronounced effects in the nutritionally restricted diet (90% R. raciborskii). A two-way ANOVA revealed the significant effects of species/clone and treatments in both assays, with significant interaction between those factors only in the second assay. Regarding the grazing assay, only D. laevis was negatively affected by increased cyanobacterial proportions in the diet. In the life table assay with constant nutritious food, a reduction in the reproduction and the intrinsic rate of the population increase (r) of all species were observed. In conclusion, we found adverse effects of the toxic cyanobacterial strain R. raciborskii on Daphnia fitness, regardless of the constant amount of nutritious food available, proving the toxic effect of R. raciborskii and that the nutritional quality of the food has a greater influence on the fitness of these animals.
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Affiliation(s)
- Gabriele Costa dos Reis
- Laboratory of Evaluation and Promotion of Environmental Health, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro 21040-360, Brazil; (G.C.d.R.); (G.H.A.d.C.)
| | - Gustavo Henrique A. de Carvalho
- Laboratory of Evaluation and Promotion of Environmental Health, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro 21040-360, Brazil; (G.C.d.R.); (G.H.A.d.C.)
| | - Mauro Cesar Palmeira Vilar
- Laboratory of Ecophysiology and Toxicology of Cyanobacteria, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21949-902, Brazil; (M.C.P.V.); (S.M.F.d.O.e.A.)
| | - Sandra Maria Feliciano de Oliveira e Azevedo
- Laboratory of Ecophysiology and Toxicology of Cyanobacteria, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro 21949-902, Brazil; (M.C.P.V.); (S.M.F.d.O.e.A.)
| | - Aloysio da Silva Ferrão-Filho
- Laboratory of Evaluation and Promotion of Environmental Health, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro 21040-360, Brazil; (G.C.d.R.); (G.H.A.d.C.)
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Biamont-Rojas IE, Cardoso-Silva S, Bitencourt MD, Dos Santos ACA, Moschini-Carlos V, Rosa AH, Pompêo M. Ecotoxicology and geostatistical techniques employed in subtropical reservoirs sediments after decades of copper sulfate application. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:2415-2434. [PMID: 35986856 DOI: 10.1007/s10653-022-01362-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Spatial distribution linked to geostatistical techniques contributes to sum up information into an easier-to-comprehend knowledge. This study compares copper spatial distribution in surface sediments and subsequent categorization according to its toxicological potential in two reservoirs, Rio Grande (RG) and Itupararanga (ITU) (São Paulo-Brazil), where copper sulfate is applied and not applied, respectively. Sediments from 47 sites in RG and 52 sites in ITU were collected, and then, copper concentrations were interpolated using geostatistical techniques (kriging). The resulting sediment distributions were classified in categories based on sediment quality guides: threshold effect level and probable effect level; regional reference values (RRVs) and enrichment factor (EF). Copper presented a heterogenic distribution and higher concentrations in RG (2283.00 ± 1308.75 mg/kg) especially on the upstream downstream, associated with algicide application as well as the sediment grain size, contrary to ITU (21.81 ± 8.28 mg/kg) where a no-clear pattern of distribution was observed. Sediments in RG are predominantly categorized as "Very Bad", whereas sediments in ITU are mainly categorized as "Good", showing values higher than RRV. The classification is supported by the EF categorization, which in RG is primarily categorized as "Very High" contrasting to ITU classified as "Absent/Very Low". Copper total stock in superficial sediment estimated for RG is 4515.35 Ton of Cu and for ITU is 27.45 Ton of Cu.
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Affiliation(s)
- Ivan Edward Biamont-Rojas
- Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, Sorocaba, 18087-180, Brazil.
| | - Sheila Cardoso-Silva
- Federal University of Acre-UFAC, Rodovia BR 364, Km 04, Rio Branco, AC, 69920-900, Brazil
- Oceanographic Institute, University of São Paulo (IO/USP), Praça Do Oceanográfico, 191, São Paulo, SP, 05508-120, Brazil
| | - Marisa Dantas Bitencourt
- Department of Ecology, University of São Paulo, Rua Do Matão, trav. 14, n° 321, Cidade Universitária, São Paulo, 05508-090, Brazil
| | | | - Viviane Moschini-Carlos
- Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, Sorocaba, 18087-180, Brazil
| | - André Henrique Rosa
- Institute of Science and Technology, São Paulo State University (UNESP), Av. Três de Março, 511, Alto da Boa Vista, Sorocaba, 18087-180, Brazil
| | - Marcelo Pompêo
- Department of Ecology, University of São Paulo, Rua Do Matão, trav. 14, n° 321, Cidade Universitária, São Paulo, 05508-090, Brazil
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