Influence of land-use patterns on benthic diatom communities and water quality in the tropical Monjolinho hydrological basin, São Carlos-SP, Brazil

Bere, Taurai; Tundisi, J. G.

doi:10.4314/wsa.v37i1.64112

Cited by 37 publications

(35 citation statements)

References 43 publications

(35 reference statements)

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“…The best indicator species for high nutrient levels or pollution were as follows: N. palea, N. trivialis, and L goeppertiana in spring; E. minima and Gomphonema angustum in summer; E. minima and N. frustulum in autumn; and E. minima in winter. These results confirmed that N. palea is cosmopolitan and a pollution-tolerant species, and it was dominant in polluted rivers in Spain (Urrea and Sabater 2009), Kenya (Ndiritu et al 2006), Vietnam (Duong et al 2006), and Brazil (Bere and Tundisi 2011). E. minima, a small cell-sized diatom, can adapt to different conditions (Raven 1998), and it was the dominant taxon at polluted sites after the summer due to harsh conditions such as flooding and excess light.…”

Section: Discussionsupporting

confidence: 67%

“…The specie Achnanthidium, which dominated in rural upstream areas with higher flow velocity, characterized the good water quality (Kwandrans et al 1998;Fore and Grafe 2002). By contrast, the species (e.g., N. palea, E. minima) that dominated in urbanized downstream with lower flow velocity areas were indicators of bad water quality (Duong et al 2006;Bere and Tundisi 2011;Raven 1998).…”

Section: Discussionmentioning

confidence: 99%

“…The IPS, IBD, and TDI were developed to assess the nutrient concentrations or eutrophication (Kelly and Whitton 1995), the pollution level (Coste 1982), and the general water quality (Lenoir and Coste 1996), respectively. The dominant diatoms at urban sites were nutrienttolerant and pollution-tolerant taxa (e.g., N. palea, E. minima) in the Ganhe River basin (Duong et al 2006;Bere and Tundisi 2011;Raven 1998). The diatom (Achnanthidium minutissimum) that dominated at the rural region was less polluted in the Ganhe River (Kwandrans et al 1998;Fore and Grafe 2002).…”

Section: Discussionmentioning

confidence: 99%

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Using benthic diatom assemblages to assess human impacts on streams across a rural to urban gradient

Yang

Cao

Pei

et al. 2015

Environ Sci Pollut Res

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Benthic diatom assemblages on the natural substrata were investigated at 21 sites of the Ganhe River watershed (China) once per season and in addition, early spring in 2013. A total of 487 diatom taxa from 36 genera were identified during five investigations. The assemblages were dominated by Achnanthidium minutissimum (Kützing) Czarnecki and Cocconeis placentula in the rural reach, whereas Navicula, Nitzschia, and Gomphonema species were characteristic of urbanized sites. Our results suggest that biodiversity was positively related to high nutrient levels and strongly negatively related to diatom-based indices. The periphyton biomass (expressed as chlorophyll a and ash-free dry mass) was not related to water quality. Canonical correspondence analysis (CCA) showed that the nutrient concentration gradient was the most important factor that affected the diatom assemblage composition and species distribution. The diatom-based indices (specific pollution sensitivity index (IPS), biological diatom index (IBD), and trophic diatom index (TDI)) were significantly positively correlated with water quality and are adequate for use in China. Slight changes in the biodiversity and diatom-based indices followed a temporal pattern. The species composition was less related to the season or hydrological characteristics of the river but more strongly related to differences in the trophic status. In this region, urbanization masked the impact of rural land use on benthic diatoms. The research will expand the understanding of using benthic diatom assemblages for water quality monitoring in urban streams and improve watershed-scale management and conservation efforts in the Ganhe River, China.

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Section: Discussionsupporting

confidence: 67%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Using benthic diatom assemblages to assess human impacts on streams across a rural to urban gradient

Yang

Cao

Pei

et al. 2015

Environ Sci Pollut Res

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“…The latter group of species have also been frequently recorded in waters that are nutrient rich and poorly oxygenated, with high electrical conductivity, variables that were retained in the CCA (Fig. 2) (Van Dam et al, 1994;Kobayasi and Mayama, 1998;Gómez and Licursi, 2001;Lobo et al, 2004;Taylor et al, 2007c;Bere and Tundisi, 2009, 2010b, 2011a, 2011b, 2011c. This group of species is known to be resistant to metal pollution (Duong et al, 2006).…”

mentioning

confidence: 99%

The application and testing of diatom-based indices of stream water quality in Chinhoyi Town, Zimbabwe

Bere¹,

Mangadze

Mwedzi

2014

WSA

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Aquatic ecosystem biomonitoring tools are largely lacking for many developing countries, resulting in adoption of tools developed from other countries/regions. In many instances, however, the applicability of adopted tools to the new system has not been explicitly evaluated. The objective of this study was to test the applicability of foreign diatom-based water quality assessment indices to urban streams in Zimbabwe, with the view of stimulating research to develop improved approaches for assessing ecological integrity of lotic systems in the country. The study evaluated the relationship between measured water quality variables and diatom index scores. The study found a high degree of concordance between water quality variables and diatom index scores. Thus, the indices proved useful in providing an indication of the quality of the investigated waters. This could be attributed to the occurrence of many widely distributed diatom species that have similar environmental tolerances to those recorded elsewhere. Diatom indices which exhibited consistent classifications and strong correlations with water quality variables such as Trophic Index, Saprobic Index, Pampean Diatom Index, Biological Index of Water Quality and Leclercq Index are recommended for use in the country. However, ecological requirements of some diatom species from Zimbabwe need to be clarified and incorporated in a diatom-based water quality assessment protocol unique to the country.

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“…En el continente americano, las diatomeas han sido investigadas desde el punto de vista taxonómico (Metzeltin & Lange-Bertalot, 1998;Ponader & Potapova, 2007;Sala, Ramírez, & Plata, 2008;Vouilloud, Sala, Nunez, & Duque, 2010) y como bioindicadoras (Potapova & Charles, 2007;Bere & Tundisi, 2010;2011a;2011b;Tudesque, Grenuillet, Gevrey, Khazraie, & Brosse, 2012). En Costa Rica, se ha estudiado el uso de las diatomeas como indicadoras de diferentes condiciones ambientales (Silva-Benavides, 1996b;Michels, 1996Michels, , 1998a1998b;Michels, Umaña, & Raede, 2006;Nunn, 1999).…”

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Tolerancia de diez especies de diatomeas (Bacillariophyceae) a los factores físico-químicos del agua en el Río Sarapiquí, Costa Rica

Vargas

Umaña‐Villalobos

Benavides

2016

RBT

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The tolerance of ten diatom species (Bacillariophyceae) to water's physico-chemical factors in the Sarapiqui River, Costa Rica. Benthic diatoms are the periphyton component most studied in Costa Rican rivers, yet there is still much to be known about their ecology. This study aims to contribute to this knowledge. Periphyton samples from six locations along the middle reach of Sarapiquí river and some of its tributaries were taken and analyzed from 2010 to 2012. A total count of 400 frustules was performed in each sample to obtain relative abundances of each species. Ten species, which were easily recognized at the light microscope, were analyzed here: Achnanthidium exiguum, Coconneis placentula, Cymbella tumida, Luticola goeppertiana, Luticola ventricosa, Navicula symmetrica, Nitzchia clausii, Nupela praecipua, Reimeria sinuata and Synedra goulardi. Their abundance was related to physico chemical data at each site for every sampling date (dissolved oxygen, temperature, conductivity, total suspended solids, turbidity, pH and alkalinity) with a canonical correspondence analysis (CCA) that allowed distinguishing three sectors along the river according to altitude. These sectors differed by substrate, riparian vegetation cover, and physic-chemical parameters, all of which resulted in differences in diatom species composition among them. Optimum values and tolerances form each environmental parameter were calculated for each species. Our results showed that A. exiguum, R. sinuata, L. ventricosa and C. tumida, were dominant in clean and well oxygenated waters with low temperatures. The species N. praecipua, S. goulardi, C. placentula, L. goeppertiana, N. clausii and N. symmetrica inhabited warm waters with high turbidity and low oxygen. The species A. exiguum, R. sinuata were dominant in sites with low alkalinity and conductivity, whereas species like N. symmetrica, C. tumida and L. ventricosa showed a positive relationship with conductivity and pH. The studied species showed good characteristics of their value as water quality indicators, yet due to different interpretations by several authors, it is necessary to perform further studies at more river basins in the country. Rev. Biol. Trop. 64 (1): 105-115. Epub 2016 March 01.

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Influence of land-use patterns on benthic diatom communities and water quality in the tropical Monjolinho hydrological basin, São Carlos-SP, Brazil

Cited by 37 publications

References 43 publications

Using benthic diatom assemblages to assess human impacts on streams across a rural to urban gradient

Using benthic diatom assemblages to assess human impacts on streams across a rural to urban gradient

The application and testing of diatom-based indices of stream water quality in Chinhoyi Town, Zimbabwe

Tolerancia de diez especies de diatomeas (Bacillariophyceae) a los factores físico-químicos del agua en el Río Sarapiquí, Costa Rica

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