The Plankton as Indicators of Water Quality in Kusalla Reservoir: A Shallow Man Made Lake

Kutama, Rabiu Musa; Abubakar, Mohammad Mustapha; Balarabe, M. L.

doi:10.9790/3008-09311215

Cited by 9 publications

(8 citation statements)

References 11 publications

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“…Studies have documented the use of plankton as bioindicators of water quality [59,60]. The composition and abundance of phytoplankton and zooplankton of the water body is a clear indication of the health status of the water body [61].…”

Section: Discussionmentioning

confidence: 99%

Water Quality and Plankton Assessment of Eme River, Umuahia, Southeast Nigeria

Anyanwu

Adetunji

Umeham

2021

Preprint

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Certain anthropogenic activities have negative impacts on the aquatic ecosystems. Plankton are sensitive to their environment and are used to monitor anthropogenic impacts. A South-eastern Nigeria River was studied from December 2017 to November 2018 in 6 stations; to assess the plankton community, water quality and anthropogenic impacts. The river was subjected to intense sand mining activities among other activities. The plankton was sampled with filtration method while water was collected and analysed using standard methods. A total of 36 phytoplankton species and 27 zooplankton species were recorded with Chlorophyceae and Rotifers being the most abundant groups. The most abundant species - Melosira granulata (phytoplankton) and Daphnia pulex (zooplankton) are pollution indicators. Some of the physicochemical parameters showed that the river was perturbed by the anthropogenic activities in the watershed. However, the plankton assemblage and community structure gave an indication of a stable environment; though the zooplankton fauna showed some level of stress. The impacts of sand mining activities on water quality and plankton were more in the downstream stations (4–6) where sand mining was intense while perturbation from swimming children and related activities were observed in station 1 especially during the dry season. The presence of eutrophic indicators and tolerant species showed that the river was tending towards eutrophication. Sand mining activities contributed to the nutrient enrichment of the river. CCA showed the major water quality parameters that influenced the plankton community structure. There is need to regulate illegal sand mining activities in the river.

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Section: Discussionmentioning

confidence: 99%

Water Quality and Plankton Assessment of Eme River, Umuahia, Southeast Nigeria

Anyanwu

Adetunji

Umeham

2021

Preprint

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“…In Kusalla reservoir, located in the savannah zone of Nigeria, chlorophyta was the dominant taxa with 36%, followed by the cyanophyta (30%) (KUTAMA et al, 2014). Zempoala, Zirahuen, Lago de Guadalupe and Valle de Bravo reservoirs, in Mexico, also demonstrated a lower richness of cyanophyta (>13%) compared to chlorophyta and Bacillariophyta.…”

Section: Discussionmentioning

confidence: 99%

“…Group 3 was significantly more diverse in the rainy season of 2011 when precipitation was higher than average. Kutama et al (2014) suggested that in Kusalla reservoir, located in the savanna zone of Nigeria, Shannon indices of 2.11 and 1.81 indicated, already, lower species diversity and high impact of pollution on water quality. In Jucazinho reservoir, Moura et al (2012) found a low diversity (2.38) and that species dominance was significantly different between rainy and dry season.…”

Section: Discussionmentioning

confidence: 99%

Impact of filamentous cyanobacteria on the water quality of two tropical reservoirs

Barros

Lopes

Carvalho³

et al. 2017

RBRH

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Artificial lakes play an important role in water availability in tropical semi-arid Northeastern Brazil. However, in addition to the negative effects that dams have on the water quality of rivers, other practices such as discharge of untreated wastewater, intensive crop fertilization and fish farming have been contributing to water quality deterioration. Climate change may be another driver of water quality decrease. Increases in precipitation and drought intensities as well as temperature increase may redefine the dynamics of planktonic communities and favour species more adapted to the new environment. Water samples were collected in two reservoirs selected based on the recurrence of positive results for saxitoxins, Acarape do Meio (AM) and Sitios Novos (SN). In general, diversity in SN (1.08) was higher than in the AM (0.60). Phytoplankton dynamics in these reservoirs differ from other reservoirs in the same region of Brazil, in the sense that filamentous cyanobacteria are dominant. Furthermore, lower diversity, concentration and richness of chlorophyceae and bacillariophyceae were found in both reservoirs. Increase in diversity was observed during the intense rainy season of 2011, suggesting a slight improvement of water quality. A close inverse correlation between Cylindrospermopsis sp and other cyanobacteria was found in SN (R 2 = -0.862) and in AM (R 2 = -0.997) and the data collected demonstrates that a season with intensive rainfall may lead to lower cyanobacteria concentrations probably due to water dilution and higher flushing rates.Keywords: Artificial reservoirs; Freshwater cyanobacteria; Semi-arid regions; Temporal phytoplankton dynamics; Eutrophication. RESUMOOs lagos artificiais tem um papel primordial na disponibilidade hídrica no semi-árido Brasileiro. Entretanto, além dos efeitos negativos que os barramentos dos rios causam sobre a qualidade da água, a descarga de esgotos, a irrigação e a piscicultura intensivas vêm acentuando a deterioração da qualidade da água em um ritmo sem precedentes nesta região. A mudança climática é outro fator de impacto negativo na qualidade da água. O aumento da intensidade das precipitações pode redefinir a dinâmica das comunidades de plâncton e espécies mais adaptadas a ambientes extremamente variáveis. Os reservatórios estudados, Acarape do Meio (AM) e Sítios Novos (SN), foram selecionados com base na recorrência de resultados positivos para saxitoxinas. A dinâmicas do fitoplâncton encontrada, difere de outras áreas da mesma região, no sentido em que as cianobactérias filamentosas são dominantes. Baixas diversidade, concentração média e riqueza de Chlorophyceae e Bacillariophyceae foram encontrados em ambos os reservatórios, embora tenha sido observado um aumento durante o intenso período chuvoso de 2011, sugerindo uma ligeira melhoria da qualidade da água. Em geral, a diversidade no reservatório SN (1,08) foi maior que no AM (0,60). Uma correlação inversa entre a concentração de Cylindrospermopsis sp e outras cianobactérias foi encontrada nos reservatór...

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“…They are closely linked to the environment, quickly responding to changes and their distribution is strongly influenced by environmental parameters (Roman et al, 2012;Vincent et al, 2012;Lin et al, 2014;Ergönül et al, 2016). Zooplanktons have been reported to be good bioindicators of water quality (Ferdous & Muktadir, 2009;Davis & Ugwumba, 2013;Dorak, 2013;Kutama et al, 2014 andJob et al, 2017). Nutrients availability, the stability of the environment, space and time are major factors determining the variations in zooplankton density (Kar et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Assessment of Zooplankton Fauna of Uta Ewa Estuary, Akwa Ibom State, Nigeria.

2020

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Estuaries are influenced by the mixture of river water with seawater; creating unique ecosystems with several physical and chemical processes affecting the water quality. Spatial and temporal assessment of the composition, abundance, and distribution of zooplankton fauna of Uta Ewa Estuarine water system was carried out between May 2019 and February 2020 to assess the effects of anthropogenic activities on the zooplankton assemblage. Water and Zooplankton samples were collected from three (3) stations using standard procedures. Some parameters like water temperature, dissolved oxygen, hydrogen-ion, electrical conductivity, and turbidity were determined in-situ. The ranges of the physico-chemical parameters were: water temperature (24.9-25.3oC), EC (62.3-70.9mS/m), pH (6.5-6.7), turbidity (12.0-28.0NTU), DO (3.8-4.7mg/L), BOD (2.3-3.2mg/L), phosphate (3.2-5.2mg/L), and nitrate (3.0-6.3mg/L). ANOVA showed a significant difference (p<0.05) in the spatial and temporal means values of some parameters. A total of 1,067 individuals from 30 zooplankton taxa and 4 taxonomic groups were recorded. Rotifers (33.4%) were the dominant group, followed by protozoa (32.9%), copepods (20.9%) and cladocerans (13.8%). Station 1 had the highest abundance (388 individuals), station 2 (303 individuals) and station 3(375 individuals). The higher number of individuals (193) was recorded in August 2019. The biodiversity indices pointed to slightly polluted to stable environment. This study showed that the water quality and zooplankton community was influenced by anthropogenic activities both spatially and temporally but season also played a major role in the temporal variation. In conclusion, the water quality was deteriorating due to anthropogenic activities, which in turn affected the structure of zooplankton community. Keywords: Abundance, Assessment, Zooplankton, Physicochemical, Estuary

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The Plankton as Indicators of Water Quality in Kusalla Reservoir: A Shallow Man Made Lake

Cited by 9 publications

References 11 publications

Water Quality and Plankton Assessment of Eme River, Umuahia, Southeast Nigeria

Water Quality and Plankton Assessment of Eme River, Umuahia, Southeast Nigeria

Impact of filamentous cyanobacteria on the water quality of two tropical reservoirs

Spatio-Temporal Assessment of Zooplankton Fauna of Uta Ewa Estuary, Akwa Ibom State, Nigeria.

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