Abstract:
Aim This study aimed to analyze the influence of small cities on the diversity of the zooplankton community along the Almada River, Bahia.
Methods The samples were collected at points upstream (Clean Waters - CW) and downstream (Active Decomposition - DA) of the urban area of three cities: Almadina, Coaraci and Itajuípe, between the years 2020 and 2023.
Results Among the physical and chemical variables, only dissolved oxygen and water temperature varied significantly between CW and DA. 90 taxa were identified, of which: 60 from Rotifera, 17 from Cladocera and 13 from Copepoda. It was possible to verify the presence of dominant taxa, characteristic of eutrophic environments, in points downstream of urban areas, namely: Lecane bulla bulla, Bdelloidea, Testudinella patina and Platyias quadricornis. The community attributes with significant variation between CW and DA were: abundance, evenness and the Shannon diversity index. The Jaccard dissimilarity between the CW and DA zones was high, indicating a low rate of species sharing between the CW and DA zones. In the BIOENV analysis, the variables of dissolved oxygen and electrical conductivity associated with variation in community structure were chosen.
Conclusions pollution from urbanized regions in the Almada River reduces the evenness and diversity index of shannon, and increases the abundance of the zooplankton community.
Keywords:
aquatic biodiversity; eutrophication; anthropogenic impacts; urbanization
Resumo:
Objetivo Esse estudo teve como objetivo, analisar a influência da poluição oriunda de pequenas cidades sobre a diversidade da comunidade zooplanctônica ao longo do Rio Almada, Bahia.
Métodos As amostras foram coletadas em pontos a montante (Águas limpas-AL) e a jusante (Decomposição ativa-DA) da área urbana de três cidades: Almadina, Coaraci e Itajuípe, entre os anos de 2020 e 2023.
Resultados Dentre as variáveis físicas e químicas, somente o oxigênio dissolvido e a temperatura da água variaram significativamente entre AL e DA. Um total de 90 táxons foram identificados, sendo: 60 de Rotifera, 17 de Cladocera e 13 de Copepoda. Foi possível constatar a presença de táxons dominantes, característicos de ambientes eutrofizados, nos pontos a jusante das áreas urbanas, sendo elas: Lecane bulla bulla, Bdelloidea, Testudinella patina e Platyias quadricornis. Os atributos da comunidade com variação significativa entre AL e DA foram: abundância, equitabilidade e o índice de diversidade de Shannon. A dissimilaridade de Jaccard entre as zonas de AL e DA foi alta, indicando um baixo índice de compartilhamento de espécies entre as zonas de AL e DA. Na análise BIOENV, as variáveis de oxigênio dissolvido e condutividade elétrica foram associadas a variação da estrutura da comunidade.
Conclusões a poluição oriunda das regiões urbanizadas no Rio Almada diminui a equitabilidade e o índice de diversidade de Shannon e aumentam a abundância da comunidade zooplanctônica.
Palavras-chave:
biodiversidade aquática; eutrofização; impactos antrópicos; urbanização
1. Introduction
Rivers are lotic ecosystems which are essential for human development (Liang et al., 2019). However, the excessive discharge of pollutants into receiving water bodies due to urbanization makes the quality of their surface waters deteriorate (Habib et al., 2020). This occurs because the pollution of water bodies alters their physical, chemical and biological parameters, causing, for example, a loss of biodiversity and eutrophication (Adbarzi et al., 2020; Soni et al., 2022). A consequence of this is an alteration in the structure and the functions of these ecosystems (Borgwardt et al., 2019; Tóth et al., 2019; Webb et al., 2020; Jafarabadi et al., 2021), as well as negative impacts on the river’s ecosystem services of self-cleaning, supplying drinking water and even providing aesthetic beauty. This environmental problem is becoming a challenge, especially for developing countries (Blettler et al., 2019).
In Brazil, around 48% of sewage water is not treated and is discharged into the environment (ITB, 2024), with rivers as the main receivers of this form of environmental degradation, affecting human health and water biodiversity. Water biodiversity has a fundamental role in the dynamics of aquatic ecosystems, especially in nutrient cycling and energy flow (Wang et al., 2021; Jiang et al., 2024). Among the biological communities that inhabit these ecosystems, zooplankton is one of the indicators of environmental change, as they provide a complete view of the state of the ecosystem (Majeed et al., 2022).
The zooplankton community is composed of microscopic invertebrate organisms that drift freely in water, among them Rotifers, Cladocera and Copepoda (Kour et al., 2022). They are important environmental indicators due to their short life cycle and their sensitivity to environmental gradients (Nascimento et al., 2023; Palmer et al., 2013). The composition of zooplankton species in the community and their abundance can be altered by pollution and can give an indication of the quality of a freshwater source (Suliman et al., 2019). As well as pollution, which is a combination of harmful alterations to water quality, the zooplankton community is affected by the concentration of nutrients, light, temperature, water transparency, parasitism, predation and competition (Schoener, 1986; Sommer et al., 2012; Zhang et al., 2019).
Despite its many water resources, Brazil has many regional differences and challenges when managing its surface waters. Among these, knowledge of the impact pollution has on zooplankton biodiversity will contribute to estimating the effects of a loss of diversity for each trophic level, strengthening conservation strategies for less impacted rivers (Jeppesen et al., 2011), and proposing restoration methods for the most impacted environments (Louette et al., 2008; Palmer et al., 2013).
In this context, the present study analyzes the effect of urban pollution on the zooplankton community of the Almada River, in the state of Bahia, Brazil. The main hypothesis is that urban pollution affects different aspects of the zooplankton biodiversity along river stretch. Therefore, we expect: (i) less species richness in active decomposition zones (a way of identifying polluted sites) due to a restricted number of species that can live in the environmental conditions of these sites; (ii) a higher overall abundance of zooplankton at the most active decomposition zones due to the opportunism of the species which are more resistant to the polluted environment; (iii) less species evenness in the affected sections due to more pollution-resistant species dominating; (iv) a decrease in the Shannon diversity index of zooplankton between clean water zone and active decomposition zones; (v) a high dissimilarity rate between the zones with clean water and those with active decomposition; (vi) the association of the community with pollution indicators.
2. Methods
Our research was carried out in the South of the state of Bahia, in the Almada River Basin (ARB) (Figure 1). The region is characterized as a tropical rainforest and the climate is classified as tropical according to the Köppen-Geiger classification. The ARB covers a drainage area of approximately 1,572.46 km2, with a perimeter of 332.4 km. The river spans a total length of 188 km, from its source to its mouth at the Atlantic Ocean. The ARB experiences an annual mean precipitation of 1,780 mm and an average annual temperature of 22.9 °C (Gomes et al., 2012). Its resources subsidize activities such as fishing, irrigation and public distribution. Along its course, the Almada River exhibits different stream orders. In the city of Almadina, the river is classified as a 4th-order stream, while in Coaraci and Itajuípe, it reaches 6th order, reflecting the increased contribution of tributaries and water volume. The final order of the river, at its mouth, is classified as 7th order, according to Strahler’s stream classification system. The sampling sites along the river showed an average width of 5.84 ± 4.5 m and an average depth of 0.39 ± 0.17 m. These measurements vary between different sampling points, reflecting local geomorphological and hydrological characteristics, as well as the influence of anthropogenic disturbances. The sampling points therefore included areas of lesser and greater depth and width along its course.
Study area showing the Almada River Basin (ARB) and its respective sampling points for each urban area.
The following cities were analyzed: Almadina (population of 5,218 and an area of 245.236 km2), Coaraci (population of 17,333 and an area of 274.500 km2), and Itajuípe (population of 18,781 and an area of 270.752 km2) (IBGE, 2022). None of these cities have a sewage treatment system in place, resulting in 0% sewage treatment coverage for their respective populations.
Six data sampling points, spread upstream (clean water zones – CW) situated 1 to 5 km before entering the city limits, representing areas with minimal human impact, and downstream (zones impacted by the effects of urban pollution, representing the zone of Active Decomposition of organic matter – AD) located 1 to 2 km after passing through of three urban areas
The average distance between CW and AD was 3.07 ± 1.81 km. These were sampled annually from 2020 to 2023. The monthly mean discharge data were obtained from the fluviometric station located in the Itajuípe city river section (P3b). During the study (2020 to 2023) of the ARB varied from 1.0 m3/s to 71.4 m3/s, with the period from October to December seeing the highest discharge values, and from January to September the lowest values (Figure 2) (ANA, 2024).
Runoff monthly means at the mouth of the Almada River for the years between 2020 and 2023 Source: ANA (2024).
We collected zooplankton using horizontal trawls of a 68 μm plankton net. The average filtered volume per sample was 636 ± 13 L. The filtered volume () was calculated using the Formula 1:
where represents the filtered volume, r is the radius of the net mouth, and d is the distance traveled during each tow.
The samples were fixed with 4% formaldehyde buffered with calcium carbonate. Subsequently, the samples were taken to the laboratory to be identified to the species level using specialized literature (Koste, 1978; Reid, 1985; Elmoor-Loureiro, 1997; Sousa & Elmoor-Loureiro, 2019). The species count was performed using an optical microscope with 2.5 ml chambers. Our count effort was of 3 complete chambers for samples with many individuals (more than 80 in 3 chambers), and of 10 complete chambers for samples with few individuals (less than 80 in 3 chambers). We also measured the pH, water temperature (WT), dissolved oxygen (DO) and electric conductivity (EC) in situ, with a Hanna 9828 multiparameter probe.
We estimated the alpha diversity of the community by measuring the following attributes: species richness, abundance, evenness, and Shannon index. Abundance (A) was calculated using the Formula 2:
where ni is the number of individuals per sample and is the filtered volume. The Shannon diversity index (H') was determined using the Formula 3:
where S is the total number of species and pi represents the relative abundance of each species.
We conducted Student’s t and Mann-Whitney (W) tests to evaluate the differences in the diversity attributes and the physical and chemical variables between the CW and AD sampling points.
We used the Jaccard dissimilarity (Legendre & Legendre, 1998) to evaluate the difference in the composition of species between each CW and its corresponding AD zones, in other words, before and after each urban area. The Jaccard dissimilarity value varies from 0 to 1. When the value is close to 0, this means the CW and AD zones share many of the same species. When the value is close to 1, there is a high rate of species replacement between the sites.
We conducted a BIOENV analysis (Clarke & Ainsworth, 1993) to verify the relationship between the environmental variables and the variations in the community’s structure. During this procedure, the community’s abundance matrix was converted to a dissimilarity matrix based on the Bray-Curtis index. Simultaneously, the environmental data matrix was standardized. The BIOENV analysis seeks the best subset of variables that maximizes the correlation of the community’s dissimilarity matrix (Clarke & Ainsworth, 1993). To test the correlation’s significance, a Mantel test was carried out (Legendre & Legendre, 1998).
We evaluated the indicator species using the Indicator Value (IndVal) (Dufrêne & Legendre, 1997). This method uses and combines the relative species abundance with the relative frequency at which the species in different habitats occur; in this case, the CW and AD zones. The IndVal organizes the species into groups and provides values between 0 and 1. Species with a significance of (p<0.1) were considered as indicators (Dufrêne & Legendre, 1997; Cáceres & Legendre, 2009).
All statistical analyses were performed using R software (R Core Team, 2015), with the BiodiversityR v.2.15.4 (Kindt & Coe, 2005), Vegan v.2.4.3 (Oksanen et al., 2017), labdsv v.2.1-0 (Roberts, 2023), and ggplot2 v.3.4.4 (Wickham, 2016) packages.
3. Results
The Almada River water’s physical and chemical parameters displayed a high variability between 2020 and 2023. The pH ranged from 5.90 to 9.36 and was not different between the clean water (CW) and active decomposition (AD) zones. Similarly, the electric conductivity (EC) also presented a high variability, with values between 66 μS.cm-1 and 1033 μS.cm-1, and did not differ between the CW and AD zones. This lack of distinction between zones can be attributed to the substantial seasonal variability in both pH and EC across the sampling periods, which likely masked any potential differences between the zones under investigation.
On the other hand, water temperature and the dissolved oxygen (DO) concentration did vary significantly between the CW and AD zones. The mean DO concentration was 6.43 ± 1.27 mg.L-1 in the CW zones and 4.45 ± 2.18 mg.L-1 in the AD zones. The mean temperature was 25.7 ± 2.41 °C in the CW zones and 26.6 ± 2.37 °C in the AD zones.
We identified 90 Rotifer, Cladocera and Copepoda taxa in the Almada River. The Rotifers had the highest richness of species (60 taxa) and the Lecanidae family was the richest (22 taxa). Seventeen Cladocera taxa were recorded, Chydoridae family the most representative (10 taxa). We recorded 13 Copepod taxa and the Cyclopoida order had the highest value (12 taxa) (Table 1).
The species richness varied between 5 and 33 taxa and did not show a significant difference between the CW and AD (Figure 3a; Table 2). On the other hand, the total abundance of the community differed between the CW and AD zones: on average, 176.8 ± 161.3 ind.m-3 were found in the CW zones and 3095 ± 6516 ind.m-3 in the AD zones (Figure 3b; Table 2). Furthermore, the evenness differed significantly between the CW and AD zones, varying on average 0.79 ± 0.1 in the CW zones and 0.49 ± 0.2 in the AD zones (Figure 3c; Table 2). The Shannon diversity index was also different, varying on average 2.7 ± 1.0 bits.ind-1 in the CW zones and 1.8 ± 0.9 bits.ind-1 in the AD zones (Figure 3d; Table 2).
Mean values of the zooplankton community in clean water (CW) and active decomposition (AD) zones of the Almada River between 2020 and 2023. (a) species richness; (b) abundance; (c) evenness; (d) Shannon index.
T test values for the attributes of the zooplankton communities between the upstream and downstream zones of the cities of Almadina, Coaraci and Itajuípe along the Almada River, measured between 2020 and 2023.
The value of the Jaccard dissimilarity between the CW zones and their respective AD zones was high: it varied from 0.43 to 1.00. The value for the first quartile was 0.68, the median 0.78, and the third quartile 0.9. These results indicate a low rate of species sharing between the CW and AD zones, in other words, the regions above and below the urban areas.
The BIOENV analysis selected the DO and EC variables, showing a 0.26 correlation between the Euclidean distance matrix of the EC and DO and the dissimilarity matrix of the community. The Mantel test indicated that the 0.26 correlation was significant (p = 0.003). Therefore, there is a link between the environmental and the community structure’s variations.
The Indicator Value (IndVal) significantly implied the presence of eight species (p-value ≤ 0.1), with seven species in the AD zones and only one in the CW zones. The Bdelloidea family and the Testudinella patina species presented the highest indicator values (Table 3).
Indicator Values (IndVal) of the zooplankton species found in the Almada River between 2020 and 2023 (p-value ≤ 0.1).
4. Discussion
Pollution is one of the main causes of biodiversity depletion in freshwater sources during the Anthropocene (Dudgeon, 2019). In Brazil, this pollution has many causes, but urbanization is one of the central ones and is a source of organic waste, fecal coliforms, nitrogen and phosphorus (Mello et al., 2020). This happens because of the low rate of sewage treatment in Brazilian cities. As a response to the effects of this type of pollution, our results show that the zooplankton fauna of the Almada River (Brazil) responds to the pollution of three cities along its course.
The qualitative urban pollution indicators in the AD zones of the Almada River were the presence of solid residues, animals along the riverbank, exposed banks and the presence of aquatic macrophytes of the Eicchornia, Polygonum and Pistia genera. We also measured lower concentrations of DO in the AD regions. This is associated with the high concentrations of organic matter caused by the discharge of domestic effluent from urban zones. The decay of the organic matter is accelerated by aerobic bacteria and, therefore, reduces the DO concentration of the water (Blume et al., 2010).
The species richness did not differ between the CW and AD zones. The percentage of species they have in common was low, indicating a change in the river’s fauna when it receives a discharge of organic pollutants. Eutrophication often changes the composition of the zooplankton community (Jeppesen et al., 2001; Hsieh et al., 2011; Rogalski et al., 2017; He et al., 2020). This occurs due to the selective conditions of eutrophication, which lead to a change in the proportion of species in each zooplankton taxonomic group and a change in the quantitative indicators (Derevenskaia et al., 2021).
Among the different responses, we verified a qualitative (species richness), quantitative (density of individuals) and quali-quantitive (represented by the IndVal) increase in the species of rotifers in the AD zones. Environments with eutrophication tend to have a higher proportion of rotifers in relation to crustaceans (Ejsmont-Karabin & Karabin 2013; Haberman & Haldna, 2014; Adamczuk et al., 2015; Ochocka & Pasztaleniec, 2016). Consequently, the abundance of zooplankton was higher in the AD zones in comparison to the CW zones, due to the high density of rotifers. Small zooplankton species are favored by pollution, making them dominate in environments with eutrophication (Shao et al., 2010; Jiang et al., 2017). These facts are associated with rotifers’ versatility in inhabiting different aquatic environments and occupying rapidly opening niches (Liang et al., 2020). Furthermore, their high tolerance to environmental changes makes them good at recolonizing aquatic environments after strong disturbances (Segers, 2008). According to Wang et al. (2023), the rotifera phylum is one of the main contributors to the increase in zooplankton biomass and abundance, due to a proportional increase in tolerant species and to the species’ dominance index in eutrophication conditions.
In this study, we confirmed the presence of the following rotifer taxa, abundant in the AD zones: Bdelloidea, Lecane bulla, Platyias quadricornis and Testudinella patina. These results, coupled with those obtained in the IndVal analysis, occur because these organisms are r-strategists. They have a high capacity to adapt, are small, have feeding plasticity, high reproductive rates, reproduce asexually, can produce resistant eggs, have phenotypic variability and a short life cycle (Allan, 1976; Neves et al., 2003).
Evenness was different for the CW and AD zones. This parameter refers to how uniform the relative abundance distribution of different species in the ecosystem or community (Hillebrand et al., 2008). Pollution can increase restrictive conditions for many species, altering which ones make up the environment (von Sperling, 1996). In this situation, species which tolerate change end up dominating polluted water bodies (Derevenskaia et al., 2021). Consequently, this tends to decrease the species evenness in AD zones near urban areas. Ecosystems with a high evenness are often considered more resilient to change, as they do not depend as much on one single species (Ricklefs & Miller, 2000). On the other hand, a low evenness indicates a community dominated by few species, which can make an ecosystem more susceptible to environmental changes and disturbances (Begon et al., 2007). Therefore, AD areas and sections downstream from cities are sites with more biodiversity vulnerability.
Higher Shannon index values for the CW zones indicate a more diverse community, considering both species richness and evenness (Gotelli, 2011; Magurran, 2011). The Shannon diversity index is a positive indication that an environment is ecologically more balanced, with a larger number of species more evenly distributed throughout the ecological niche (Margalef, 1974). In comparison, lower values of the index for the AD zones reveal a less diverse and even community (Gaston & Spicer, 2004; Molles Junior, 2015), which can be caused by environmental disturbances (such as pollution), or even a degradation of the habitat due to other anthropic actions (Cain et al., 2011).
In this study, we use the term ‘pollution’ in a broad manner to denote environmental deterioration along the Almada River. Excluding species richness, all the other community attributes presented lower values in the AD zones, indicating the negative effect pollution has on the zooplankton community. The variation in the DO concentration and EC (parameters which indicate pollution) were associated with a variation in the structure of the zooplankton community. This suggests that the changes in the structure of the community happened due to the environmental changes in the Almada River. Souza et al. (2022) also demonstrated the negative effect of the presence of cities along the Almada River, by comparing the diversity of aquatic insects upstream and downstream of these cities.
5. Conclusion
We observed variation in the diversity indices of the zooplankton community between the CW and AD zones along the Almada River. These zones exhibited high abundance, low diversity and low evenness of the zooplankton community. Therefore, this study provides information about the zooplankton community’s response to anthropic environmental stress factors, showing the viability of using the community as an environmental indicator and for monitoring water quality in future studies.
Data availability
The dataset analyzed/produced in this study can be requested from the corresponding author. However, it is part of ongoing research and cannot be made publicly available at this stage to ensure the integrity and originality of subsequent studies derived from it.
Acknowledgements
We thank: Agência Nacional de Águas (ANA) for the data provided from the HIDROWEB platform; JFS thanks the Universidade Federal do Sul da Bahia (UFSB) for the undergraduate research scholarship; JRN thanks the Fundação de Amparo à Pesquisa do Estado da Bahia (Fapesb) for the master's scholarship. NRS was grateful to the CNPq for the research productivity fellowships and FAPESB for financial support to the project.
-
Cite as:
Santos, J.F., Nascimento, J.R. and Simões, N.R. Effects of urban pollution on zooplankton diversity along the Almada River (Bahia, Brazil). Acta Limnologica Brasiliensia, 2025, vol. 37, e103. https://doi.org/10.1590/S2179-975X3224
References
-
Adamczuk, M., Mieczan, T., Tarkowska-Kukuryk, M., & Demetraki-Paleolog, A., 2015. Rotatoria-Cladocera-Copepoda relations in the long-term monitoring of water quality in lakes with trophic variation (E. Poland). Environ. Earth Sci. 73(12), 8189-8196. http://doi.org/10.1007/s12665-014-3977-z
» http://doi.org/10.1007/s12665-014-3977-z -
Adbarzi, S.S.M., Tripathi, P., Choudhary, K.K., Kant, R., & Tripathi, V., 2020. Assessment of physico-chemical properties of pre and post treated wastewater of Prayagraj region and its effect on nearby Ganges River. Vegetos 33(2), 258-264. http://doi.org/10.1007/s42535-020-00103-y
» http://doi.org/10.1007/s42535-020-00103-y - Agência Nacional de Águas – ANA, 2024. Sistemas de informações hidrológicas. Brasília: ANA.
-
Allan, J., 1976. Life history patterns in zooplankton. Am. Nat. 110(971), 165-180. http://doi.org/10.1086/283056
» http://doi.org/10.1086/283056 - Begon, M., Townsend, C.R., & Harper, J.L., 2007. Ecologia: de indivíduos a ecossistemas. Porto Alegre: Artmed.
-
Blettler, M., Garello, N., Ginon, L., Abrial, E., Espinola, L.A., & Wantzen, K.M., 2019. Massive plastic pollution in a mega-river of a developing country: sediment deposition and ingestion by fish (Prochilodus lineatus). Environ. Pollut. 255(3), 113348. PMid:31610388. http://doi.org/10.1016/j.envpol.2019.113348
» http://doi.org/10.1016/j.envpol.2019.113348 -
Blume, K.K., Macedo, J.C., Meneguzzi, A., Silva, L.B., Quevedo, D.M., & Rodrigues, M.A.S., 2010. Water quality assessment of the Sinos River, Southern Brazil. Braz. J. Biol. 70(4, Suppl.), 1185-1193. PMid:21225160. http://doi.org/10.1590/S1519-69842010000600008
» http://doi.org/10.1590/S1519-69842010000600008 -
Borgwardt, F., Robinson, L., Trauner, D., Teixeira, H., Nogueira, A.J.A., Lillebø, A.I., Piet, G., Kuemmerlen, M., O’Higgins, T., McDonald, H., Arevalo-Torres, J., Barbosa, A.L., Iglesias-Campos, A., Hein, T., & Culhane, F., 2019. Exploring variability in environmental impact risk from human activities across aquatic ecosystems. Sci. Total Environ. 652, 1396-1408. PMid:30586824. http://doi.org/10.1016/j.scitotenv.2018.10.339
» http://doi.org/10.1016/j.scitotenv.2018.10.339 -
Cáceres, M.D., & Legendre, P., 2009. Associations between species and groups of sites: indices and statistical inference. Ecology 90(12), 3566-3574. PMid:20120823. http://doi.org/10.1890/08-1823.1
» http://doi.org/10.1890/08-1823.1 - Cain, M.L., Bowman, W.D., & Hacker, S.D., 2011. Ecology. Sunderland: Sinauer Associates.
-
Clarke, K.R., & Ainsworth, M., 1993. A method of linking multivariate community structure to environmental variables. Mar. Ecol. Prog. Ser. 92(3), 205-205. http://doi.org/10.3354/meps092205
» http://doi.org/10.3354/meps092205 -
Derevenskaia, O.I., Borisova, N.I., & Unkovskaia, E.N., 2021. Zooplankton indices in the evaluation of the ecological state of the eutrophic lake (Case study: Karasikha Lake, Russia). Caspian J. Environ. Sci. 19(4), 701-708. http://doi.org/10.22124/CJES.2021.5143
» http://doi.org/10.22124/CJES.2021.5143 -
Dudgeon, D., 2019. Multiple threats imperil freshwater biodiversity in the Anthropocene. Curr. Biol. 29(19), R960-R967. PMid:31593677. http://doi.org/10.1016/j.cub.2019.08.002
» http://doi.org/10.1016/j.cub.2019.08.002 -
Dufrêne, M., & Legendre, P., 1997. Species assemblages and indicator species: the need for flexible asymmetrical approach. Ecol. Monogr. 67(3), 345-366. http://doi.org/10.2307/2963459
» http://doi.org/10.2307/2963459 - Ejsmont-Karabin, J., & Karabin, A., 2013. The suitability of zooplankton as lake ecosystem indicators. Crustacean Trophic State Index. Pol. J. Ecol. 61, 561-573.
- Elmoor-Loureiro, L. 1997. Manual de identificação de cladóceros Límnicos do Brasil. Brasília: Editora Universa, vol. 156.
- Gaston, K.J., & Spicer, J.I., 2004. Biodiversity: an Introduction. Oxford: Blackwell Publishing.
-
Gomes, R.L., Moraes, M.E.B., Moreau, A.M.S., Moreau, M.S., Franco, G.B., & Marques, E.A.G., 2012. Aspectos físico-ambientais e de uso e ocupação do solo da bacia hidrográfica do Rio Almada-BA. Bol. Geogr. 30(2), 45-57. http://doi.org/10.4025/bolgeogr.v30i2.16423
» http://doi.org/10.4025/bolgeogr.v30i2.16423 - Gotelli, N.J., 2011. Princípios da ecologia e estatística. Porto Alegre: Artmed.
-
Haberman, J., & Haldna, M., 2014. Indices of zooplankton community as valuable tools in assessing the trophic state and water quality of eutrophic lakes: long term study of Lake Võrtsjärv. J. Limnol. 73(2), 263-273. http://doi.org/10.4081/jlimnol.2014.828
» http://doi.org/10.4081/jlimnol.2014.828 -
Habib, M.A., Islam, A.R.M.T., Bodrud-Doza, M., Mukta, F.A., Khan, R., Bakar Siddique, M.A., Phoungthong, K., & Techato, K., 2020. Simultaneous appraisals of pathway and probable health risk associated with trace metals contamination in groundwater from Barapukuria coal basin, Bangladesh. Chemosphere 242, 125183. PMid:31675577. http://doi.org/10.1016/j.chemosphere.2019.125183
» http://doi.org/10.1016/j.chemosphere.2019.125183 -
He, H., Jeppesen, E., Bruhn, D., Yde, M., Hansen, J.K., Spanggaard, L., Madsen, N., Liu, W., Søndergaard, M., & Lauridsen, T.L., 2020. Decadal changes in zooplankton biomass, composition, and body mass in four shallow brackish lakes in Denmark subjected to varying degrees of eutrophication. Inland Waters 10(2), 186-196. http://doi.org/10.1080/20442041.2020.1732782
» http://doi.org/10.1080/20442041.2020.1732782 -
Hillebrand, H., Bennett, D.M., & Cadotte, M.W., 2008. Consequences of dominance: a review of evenness effects on local and regional ecosystem processes. Ecology 89(6), 1510-1520. PMid:18589516. http://doi.org/10.1890/07-1053.1
» http://doi.org/10.1890/07-1053.1 -
Hsieh, C., Sakai, Y., Ban, S., Ishikawa, K., Ishikawa, T., Ichise, S., Yamamura, N., & Kumagai, M., 2011. Eutrophication and warming effects on long-term variation of zooplankton in Lake Biwa. Biogeosciences 8(5), 593-629. http://doi.org/10.5194/bg-8-1383-2011
» http://doi.org/10.5194/bg-8-1383-2011 - Instituto Brasileiro de Geografia e Estatística – IBGE, 2022. Censo demográfico 2022: resultados. Rio de Janeiro: IBGE.
- Instituto Trata Brasil – ITB, 2024. Principais estatísticas. São Paulo: ITB.
-
Jafarabadi, A.R., Svirbutavičienè, R.E., Bakhtiari, A.R., & Kareiva, A., 2021. Polycyclic aromatic hydrocarbons (PAHs) in the non-bleached and bleached corals and their ambient environment: the role of suspended particulate matter, mucus, and positive matrix factorization model for identifying contributions to the carcinogenicity of PAH sources. Sci. Total Environ. 787, 147. http://doi.org/10.1016/j.scitotenv.2021.147688
» http://doi.org/10.1016/j.scitotenv.2021.147688 -
Jeppesen, E., Jensen, J.P., Søndergaard, M., Lauridsen, T., & Landkildehus, F.J.F.B., 2001. Trophic structure, species richness and biodiversity in Danish lakes: changes along a phosphorus gradient. Freshw. Biol. 45(2), 201-218. http://doi.org/10.1046/j.1365-2427.2000.00675.x
» http://doi.org/10.1046/j.1365-2427.2000.00675.x -
Jeppesen, E., Nõges, P., Davidson, T.A., Haberman, J., Nõges, T., Blank, K., Lauridsen, T.L., Søndergaard, M., Sayer, C., Laugaste, R., Johansson, L.S., Bjerring, R., & Amsinck, S.L., 2011. Zooplankton as indicators in lakes: a scientific-based plea for including zooplankton in the ecological quality assessment of lakes according to the European Water Framework Directive (WFD). Hydrobiologia 676(1), 279-297. http://doi.org/10.1007/s10750-011-0831-0
» http://doi.org/10.1007/s10750-011-0831-0 -
Jiang, H.J., Lu, A., Li, J., Ma, M., Meng, G., Chen, Q., Liu, G., & Yin, X., 2024. Effects of aquatic plant coverage on diversity and resource use efficiency of phytoplankton in urban wetlands: a case study in Jinan, China. Biology (Basel) 13(1), 44. PMid:38248475. http://doi.org/10.3390/biology13010044
» http://doi.org/10.3390/biology13010044 -
Jiang, X., Xie, J., Xu, Y., Zhong, W., Zhu, X., & Zhu, C., 2017. Increasing dominance of small zooplankton with toxic cyanobacteria. Freshw. Biol. 62(2), 429-443. http://doi.org/10.1111/fwb.12877
» http://doi.org/10.1111/fwb.12877 - Kindt, R., & Coe, R., 2005. Tree diversity analysis: a manual and software for common statistical methods for ecological and biodiversity studies. Nairobi: World Agroforestry Centre.
- Koste, W., 1978. Rotatoria, die Rädertiere Mitteleuropas Ein Bestimmungswerk Begründet von Max Voigt. Uberordnung monogononta. Berlin: Gebrüber Borntraeger.
-
Kour, S., Slathia, D., Sharma, N., Kour, S., & Verma, R., 2022. Zooplankton as bioindicators of trophic status of a Lentic water source, Jammu (J&K) with remarks on first reports. Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci. 92(2), 393-404. http://doi.org/10.1007/s40011-022-01349-z
» http://doi.org/10.1007/s40011-022-01349-z - Legendre, P., & Legendre, L., 1998. Numerical ecology. Amsterdam: Elsevier Science.
-
Liang, D., Wang, Q., Wei, N., Tang, C., Sun, X., & Yang, Y., 2020. Biological indicators of ecological quality in typical urban river-lake ecosystems: the planktonic rotifer community and its response to environmental factors. Ecol. Indic. 112, 106-127. http://doi.org/10.1016/j.ecolind.2020.106127
» http://doi.org/10.1016/j.ecolind.2020.106127 -
Liang, N., Zou, Z.H., & Wei, Y., 2019. Regression models (SVR, EMD and FastICA) in forecasting water quality of the Haihe River of China. Desalination Water Treat. 154, 147-159. http://doi.org/10.5004/dwt.2019.24034
» http://doi.org/10.5004/dwt.2019.24034 -
Louette, G., De Meester, L., & Declerck, S.A.J., 2008. Assembly of zooplankton communities in newly created ponds. Freshw. Biol. 53(11), 2309-2320. http://doi.org/10.1111/j.1365-2427.2008.02052.x
» http://doi.org/10.1111/j.1365-2427.2008.02052.x - Magurran, A.E., 2011. Medindo a diversidade biológica. Curitiba: UFPR.
-
Majeed, O.S., Nashaat, M.R., & Al-Azawi, A.J., 2022. The Effect of AL-Tharthar Canal on the zooplankton composition and diversity in the Tigris River. Al-Mustansiriyah J. Sci. 33(5), 53-64. http://doi.org/10.23851/mjs.v33i5.1314
» http://doi.org/10.23851/mjs.v33i5.1314 - Margalef, R., 1974. Ecología. Barcelona: Omega.
-
Mello, K., Taniwaki, R.H., de Paula, F.R., Valente, R.A., Randhir, T.O., Macedo, D.R., Leal, C.G., Rodrigues, C.B., & Hughes, R.M., 2020. Multiscale land use impacts on water quality: assessment, planning, and future perspectives in Brazil. J. Environ. Manage. 270, 110879. PMid:32721318. http://doi.org/10.1016/j.jenvman.2020.110879
» http://doi.org/10.1016/j.jenvman.2020.110879 - Molles Junior, M.C., 2015. Ecology: concepts and applications. New York: McGraw-Hill Education.
-
Nascimento, J.R., Braghin, L.S., Cabral, C.R., Caliman, A., & Simões, N.R., 2023. Geographical, environmental, and biotic constraints define the spatial distribution of Diaphanosoma species (Cladocera). Adv. Oceanol. Limnol. 14(1), http://doi.org/10.4081/aiol.2023.10848
» http://doi.org/10.4081/aiol.2023.10848 -
Neves, I.F., Rocha, O., Roche, K.F., & Pinto, A.A., 2003. Zooplankton community structure of two marginal lakes of the River Cuiabá (Mato Grosso, Brazil) with analysis of Rotifera and Cladocera diversity. Braz. J. Biol. 63(2), 329-343. PMid:14509855. http://doi.org/10.1590/S1519-69842003000200018
» http://doi.org/10.1590/S1519-69842003000200018 -
Ochocka, A., & Pasztaleniec, A., 2016. Sensitivity of plankton indices to lake trophic conditions. Environ. Monit. Assess. 188(11), 622. PMid:27752916. http://doi.org/10.1007/s10661-016-5634-3
» http://doi.org/10.1007/s10661-016-5634-3 - Oksanen, F.J., Blanchet, F.G., Kindt, R., Legendre, P., Minchin, P.R., O’Hara, R.B., Simpson, G.L., Sólymos, P., Stevens, M.H.H., & Wagner, H., 2017. vegan: community ecology package. R package Version 2.4-3. Vienna: R Foundation for Statistical Computing.
-
Palmer, M.E., Keller, W.B., & Yan, N.D., 2013. Gauging recovery of zooplankton from historical acid and metal contamination: the influence of temporal changes in restoration targets. J. Appl. Ecol. 50(1), 107-118. http://doi.org/10.1111/1365-2664.12007
» http://doi.org/10.1111/1365-2664.12007 - R Core Team, 2015. R: a language and environment for statistical computing. Vienna: R Foundation for Statistical Computing.
- Reid, J.W., 1985. Chave de identificação e lista de referências bibliográficas para as espécies continentais sulamericanas de vida livre da ordem Cyclopoida (Crustacea, Copepoda). Boll. Zool. 9, 17-143.
- Ricklefs, R. E.; Miller, G. L., 2000. Ecology. New York: W.H. Freeman and Company.
- Roberts, D. W., 2023. Package 'labdsv': ordination and multivariate analysis for ecology. R package version 2.1-0. Vienna: R Foundation for Statistical Computing.
-
Rogalski, M.A., Leavitt, P.R., & Skelly, D.K., 2017. Daphniid zooplankton assemblage shifts in response to eutrophication and metal contamination during the Anthropocene. Proc. Biol. Sci. 284(1859), 20170865. PMid:28747475. http://doi.org/10.1098/rspb.2017.0865
» http://doi.org/10.1098/rspb.2017.0865 - Schoener, T.W., 1986. Overview: kinds of ecological communities - ecology becomes pluralistic. In: Diamond, J., Case, T.J., eds. Community ecology. New York: Harper & Row, 467-479.
-
Segers, H., 2008. Global diversity of rotifers (Rotifera) in freshwater. Hydrobiologia 595(1), 49-59. http://doi.org/10.1007/s10750-007-9003-7
» http://doi.org/10.1007/s10750-007-9003-7 -
Shao, Z., Xie, P., & Zhuge, Y., 2010. Long-term changes of planktonic rotifers in a subtropical Chinese lake dominated by filter-feeding fishes. Freshw. Biol. 46(7), 973-986. http://doi.org/10.1046/j.1365-2427.2001.00731.x
» http://doi.org/10.1046/j.1365-2427.2001.00731.x -
Sommer, U., Adrian, R., De Senerpont Domis, L., Elser, J.J., Gaedke, U., Ibelings, B., Jeppesen, E., Lürling, M., Molinero, J.C., Mooij, W.M., van Donk, E., & Winder, M., 2012. Beyond the Plankton Ecology Group (PEG) model: mechanisms driving plankton succession. Annu. Rev. Ecol. Evol. Syst. 43(1), 429-448. http://doi.org/10.1146/annurev-ecolsys-110411-160251
» http://doi.org/10.1146/annurev-ecolsys-110411-160251 -
Soni, R., Pala, A.K., Tripathi, P., Jha, P.K., & Tripathi, V., 2022. Physicochemical analysis of wastewater discharge and impact on Ganges River of major cities of North India. Water Sci. Technol. Water Supply 2(6), 6157-6179. http://doi.org/10.2166/ws.2022.185
» http://doi.org/10.2166/ws.2022.185 -
Sousa, F.D.R., & Elmoor-Loureiro, L.M.A., 2019. Identification key for the Brazilian genera and species of Aloninae. Pap. Avulsos Zool. 59, e20195924. http://doi.org/10.11606/1807-0205/2019.59.24
» http://doi.org/10.11606/1807-0205/2019.59.24 - Souza, N.F., Campiolo, S., & Mariano, R., 2022. Evaluation of the effect of urbanization on water quality using bioindicators. Gaia Sci. 15(4), 1-15.
-
Suliman, I., Ibram, O., Tofan, L., Tudor, I.M., & Doroftei, M., 2019. Zooplankton communities as bioindicators in Zaghen restored wetland, Danube Delta Biosphere Reserve. Sci. Ann. Danub. Delta Inst. Tulcea 24, 2499. http://doi.org/10.7427/DDI.24.11
» http://doi.org/10.7427/DDI.24.11 -
Tóth, R., Czeglédi, I., Kern, B., & Erős, T., 2019. Land use effects in riverscapes: diversity and environmental drivers of stream fish communities in protected, agricultural and urban landscapes. Ecol. Indic. 101, 742-748. http://doi.org/10.1016/j.ecolind.2019.01.063
» http://doi.org/10.1016/j.ecolind.2019.01.063 - von Sperling, M., 1996. Introdução à qualidade das águas e ao tratamento de esgotos. Belo Horizonte: Universidade Federal De Minas Gerais, 2 ed.
-
Wang, C., Li, E., Zhang, L., Wei, H., Zhang, L., & Wang, Z., 2023. Long-term succession characteristics and driving factors of zooplankton communities in a typical subtropical shallow lake, central China. Environ. Sci. Pollut. Res. Int. 30(17), 49435-49449. PMid:36781671. http://doi.org/10.1007/s11356-023-25782-3
» http://doi.org/10.1007/s11356-023-25782-3 -
Wang, J., Soininen, J., & Heino, J., 2021. Ecological indicators for aquatic biodiversity, ecosystem functions, human activities and climate change. Ecol. Indic. 132, 108250. http://doi.org/10.1016/j.ecolind.2021.108250
» http://doi.org/10.1016/j.ecolind.2021.108250 -
Webb, A.L., Hughes, K.A., Grand, M.M., Lohan, M.C., & Peck, L.S., 2020. Sources of elevated heavy metal concentrations in sediments and benthic marine invertebrates of the western Antarctic Peninsula. Sci. Total Environ. 698, 134268. PMid:31783446. http://doi.org/10.1016/j.scitotenv.2019.134268
» http://doi.org/10.1016/j.scitotenv.2019.134268 -
Wickham, H., 2016. ggplot2: elegant graphics for data analysis. New York: Springer-Verlag. http://doi.org/10.1007/978-3-319-24277-4
» http://doi.org/10.1007/978-3-319-24277-4 -
Zhang, K., Jiang, F., Chen, H., Dibar, D.T., Wu, Q., & Zhou, Z., 2019. Temporal and spatial variations in zooplankton communities in relation to environmental factors in four floodplain lakes located in the middle reach of the Yangtze River, China. Environ. Pollut. 251, 277-284. PMid:31082612. http://doi.org/10.1016/j.envpol.2019.04.139
» http://doi.org/10.1016/j.envpol.2019.04.139
Edited by
-
Associate Editors: Cláudia Bonecker, Gilmar Perbiche Neves, Maria Stela Maioli Castilho Noll.
Publication Dates
-
Publication in this collection
17 Mar 2025 -
Date of issue
2025
History
-
Received
14 Apr 2024 -
Accepted
15 Jan 2025