Relationships between Physico-Chemical Parameters and Taxonomic Structure of Benthic Macroinvertebrate Assemblages in Streams of West Cameroon

Fotsing, Joséphine Kengne; Menbohan, Samuel Foto; Meyer, Amélie; Leprêtre, Alain; Usseglio‐Polatera, Philippe

doi:10.3390/w14091490

Cited by 4 publications

(3 citation statements)

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“…The slow current would allow the deposition of fine particles and the homogenization of the bottom of the water. The authors [4] [16] [43] mention that benthic invertebrates have a preference for certain microhabitats over others and taxonomic diversity increases with microhabitat diversity. In the case of stations with diversified microhabitats, the community seems to be more diversified and in balance.…”

Section: Biological Characteristics Of Sampling Stationsmentioning

confidence: 99%

Spatiotemporal Variation of Benthic Macroinvertebrates in Some Tropical Forest Streams of the Nyong Catchment (Cameroon)

Dzavi¹,

Menbohan²,

Mboye³

et al. 2022

OJAppS

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With the aim of assessing the benthic macroinvertebrates' diversity, a study was carried out in some tropical forest streams of the Nyong River catchment in Cameroon from February 2019 to February 2020. A total of 167 samples were carried out from 13 stations during 13 months. Some environmental variables were measured. These parameters varied more or less from station to station but significantly at the temporal level. In this study, 13,690 benthic macroinvertebrates belonging to 4 phyla, 7 classes, 16 orders and 93 families were collected. The benthic macroinvertebrates were more abundant and more diversified in the stations whose waters are well oxygenated and present a moderate current compared to the stations with a very weak current. The diversity varied significantly from 1.33 ± 0.14 bits/ind to 2.00 ± 0.35 bits/ind and the high values were found in stations with multiple substrates and well-oxygenated waters. Temporally, the diversity varied significantly from 1.10 ± 0.16 bits/ind in NM sampling station in February 2020 to 1.87 ± 0.1 bits/ind in the OB sampling station in September. In addition, the settlement was more abundant during the short dry season, more precisely during the month of August (1471 individuals) but richer during the long dry season during the month of February (54 families). The distribution of the abundances of the benthic fauna in the different stations made it possible to identify five typological groups using the rarefaction curves, the ascending hierarchical classification and the principal component analyses. Each of these five groups is characterized by a specific taxonomic richness, composition and abundance.

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Section: Biological Characteristics Of Sampling Stationsmentioning

confidence: 99%

Spatiotemporal Variation of Benthic Macroinvertebrates in Some Tropical Forest Streams of the Nyong Catchment (Cameroon)

Dzavi¹,

Menbohan²,

Mboye³

et al. 2022

OJAppS

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“…Para las muestras para análisis microbiológicos se siguió la NTE INEN 2176:2013, propone que los recipientes deben ser de vidrio o de plástico de la mejor calidad y estar libres de sustancias tóxicas. Para análisis de rutina es suficiente que tengan una capacidad de 300 cm 3 . Los recipientes se deben tapar con tapas de vidrio esmerilado o tapas de tornillo, y si es necesario con bandas elásticas de silicona, que resistan esterilizaciones repetidas a 160 ∘ C.…”

Section: Muestras De Aguaunclassified

“…Debido a esto se ha hecho fundamental el desarrollo de técnicas de monitoreo y control de contaminación de las diferentes masas de agua haciendo principal hincapié en las principales fuentes de agua dulce como ríos, lagos y aguas subterráneas (2). La evaluación y control de la contaminación del agua ha pasado de ser un reto generalizado de algunos países a una necesidad global, especialmente de aquellos países en desarrollo, ya que el agua puede favorecer directa o indirectamente la transmisión de diversas enfermedades (3).…”

Section: Introductionunclassified

Determination of the Water Quality of the Copueno River by Macroinvertebrate Analysis

Maurat,

Astudillo,

Patiño

et al. 2024

espoch

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In the Copueno River located in the area between Macas and Proaño, water quality was determined using the Water Quality Index (ICA) and the BMWP/col Index. For this purpose, three sampling points defined mainly by their accessibility were taken, three water samples were taken for physicochemical analysis, and three water samples were taken for microbiological analysis, all according to the stipulations of NTE INEN 2169:2013 and NTE INEN 2176:2013. The IQA-Data 2015 program was used for the physicochemical parameter analysis, which showed values of 58.57 for point 1, 67.47 for point 2, and 51.76 for point 3, which according to the water quality classification table based on the ICA (NSF), the water has a classification of ”Regular” in the three points. For the determination of water quality, it has been made the BMWP/col. Keywords: Copueno, Benthic Macroinvertebrates, water quality, analysis. Resumen En el río Copueno ubicado en la zona entre Macas y Proaño, se determinó la calidad del agua mediante el Índice de Calidad de Agua (ICA) y el Índice BMWP/col. Para ello tomaron tres puntos de muestreo definidos principalmente por su accesibilidad, se tomaron tres muestras de agua para los análisis fisicoquímicos y tres muestras de agua para los análisis microbiológicos todo esto según lo estipulado en las NTE INEN 2169:2013 y NTE INEN 2176:2013. Para el análisis de parámetros fisicoquímicos se utilizó el programa IQA-Data 2015 que mostró valores de 58.57 para el punto 1, de 67.47 para el punto 2 y de 51.76 para le punto 3 lo que según la tabla de clasificación de calidad de agua en función al ICA (NSF) el agua tiene una clasificación de “Regular” en los tres puntos. Para la determinación de la calidad de agua se realizó mediante el índice BMWP/col. Palabras Clave: Copueno, Macroinvertebrados Bentónicos, Calidad del Agua, Análisis.

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Aquatic macroinvertebrate trophic guilds, functional feeding groups, and water quality of an andean urban river

Carrasco-Badajoz

Rayme-Chalco

Arana-Maestre

et al. 2022

Front. Environ. Sci.

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In the Anthropocene, man has imposed his activities above the natural processes of ecosystems. Rivers have undergone major changes associated with urban centers, so monitoring them is important to determine their status and suitability to provide environmental services. Studies applying the community ecology approach, such as energy flow in aquatic macroinvertebrate assemblages, may be appropriate to determine their status and functioning. This study characterized an Andean river that runs across the city of Ayacucho (Peru). Water physicochemical parameters and biotic quality indices were used and compared with the abundance of trophic guild components and functional feeding groups to demonstrate that the latter are at least equally suitable to estimate water quality. The river section studied ranged from 2640 to 2900 m a.s.l. and was monitored in the wet and dry seasons. Six monitoring stations were established according to the extent of the influence of the urban center. Water physicochemical variables and macroinvertebrate abundances were determined. A Surber net was used for multihabitat sampling; macroinvertebrates were identified to genus level (in most cases) and counted to estimate relative abundances. Trophic guilds (detritivore, predator, herbivore) were formed using the genus data from identification according to the information available in Argentina, Colombia, Ecuador, Bolivia, and Peru. Functional feeding groups were set based on the classification of families. The sensitivity of trophic metrics was assessed by relating them to environmental variables and the Andean Biotic Index (ABI), the Biological Monitoring Working Party adapted for Colombia (BMWP/Col.), and the Ephemeroptera, Plecoptera, Trichoptera (EPT) indices. Environmental variables and biotic indices increased significantly in the most impacted stations, where the abundance of most taxa decreased. The components of trophic guilds and functional groups varied, and those feeding on fine particles increased in sites with a higher urban impact. The metrics based on trophic characteristics were highly correlated with the BMWP/Col and ABI indices. Therefore, these indices can be used to estimate river water quality and provide information on its functioning.

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Relationships between Physico-Chemical Parameters and Taxonomic Structure of Benthic Macroinvertebrate Assemblages in Streams of West Cameroon

Cited by 4 publications

References 94 publications

Spatiotemporal Variation of Benthic Macroinvertebrates in Some Tropical Forest Streams of the Nyong Catchment (Cameroon)

Spatiotemporal Variation of Benthic Macroinvertebrates in Some Tropical Forest Streams of the Nyong Catchment (Cameroon)

Determination of the Water Quality of the Copueno River by Macroinvertebrate Analysis

Aquatic macroinvertebrate trophic guilds, functional feeding groups, and water quality of an andean urban river

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