Are biological indices BMPW' and ASPT' and their significance regarding water quality seasonally dependent? Factors explaining their variations

From November 2000 to September 2001, eight points in the Iberá lagoon were sampled bimonthly. At each point, pH, temperature and dissolved oxygen were measured and invertebrates were collected from the water around macrophytes by mean of a net of 180 mu m pore size. Four biotic indices were calculated and compared, given similar trends. The total number of taxa shows to be a good and simple indicator of water quality. Averaging indices across points we obtained a good positive correlation between indices and temperature. In this ecosystem, multi-habitat sampling must be used in order to obtain a good estimation of ecological integrity. The total number of taxa can be used for water quality assessment.

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“…This fact has been also observed by other authors (see for example Armitage et al, 1983;Zamora-Muñoz et al, 1995;Rodríguez-Capítulo et al, 2001).…”

Section: Pantle and Bucksupporting

confidence: 71%

Relationship Between Micro-Invertebrates and Macrophytes in a Wetland: Laguna Iberá (Corrientes, Argentina). Implications for Water Quality Monitoring

Momo

Casset

Gantes

et al. 2006

Environ Monit Assess

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“…The South African Scoring System (SASS) (Chutter, 1994;Dickens & Graham, 2002) and its associated ASPT were calculated as well as Hilsenhoff Family Level Biotic Index (FBI) (Hilsenhoff, 1988). The BMWP was developed in Britain across a wide range of river types including smaller upland streams and has been shown to be reliable across a wide altitudinal gradient (Armitage et al, 1983;Zamora-Muñoz et al, 1995), the system assigns each family a score between one and ten, based on its sensitivity to organic pollutants. Pollution-sensitive families have high scores and pollution-tolerant ones low scores.…”

Section: Biotic Indices Appliedmentioning

confidence: 99%

Performance of selected macroinvertebrate-based biotic indices for rivers draining the Merendon Mountains region of Honduras

O’Callaghan

Kelly‐Quinn

2013

URJ

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Cusuco National Park, a cloud forest park situated in the Merendon Mountains region of Honduras, is home to considerable biodiversity with a very high degree of endemism. Like many other cloud forest parks in Central America, it was declared a protected area not because of its biodiversity, but mainly because of its function in protecting river water quality in the headwaters draining the park. Illegal and authorised forest clearance for agricultural activity such as coffee production and pasture for animals and diffuse inputs from settlements are expected to affect aquatic macroinvertebrate communities and the water quality of the rivers in the park. There is however very limited water quality monitoring, mainly because biological indices such as those in use in Europe and the United States have not been developed in Honduras. A research project based on macroinvertebrates was initiated in 2009 to develop a water quality index for the area. Sampling was undertaken between June and August 2009 and set out to study minimally disturbed upper catchments of reference rivers. This paper evaluates the performance of several indices. A version of the ASPT based on the BMWP calibrated for Costa Rica (BMWP(CR)) performed best. KEY WORDSBiomonitoring, Honduras, macroinvertebrates, neotropics, upland stream, water quality RESUMEN El Parque Nacional de Cusuco es un Parque ocupado en su mayor parte por un bosque de niebla que se localiza en la región de las montañas Merendon en Honduras y que alberga una considerable biodiversidad con un alto grado de endemismos. No obstante, este Parque Nacional, como muchos otros parques de bosque de niebla en Centro América, fue declarado Área protegida no por su biodiversidad, sino principalmente por su función en la protección de la calidad de las aguas fluviales de las cabeceras de las cuencas de drenaje del parque, al ser la fuente de agua potable para varias áreas urbanas de gran tamaño entre las que se incluye San Pedro Sula. Se espera que clareos de bosque, tanto ilegales como autorizados, para actividades agrícolas como la producción de café y pasto para los animales, y el aporte difuso desde los asentamientos, afecten a las comunidades de macroinvertebrados acuáticos y a la calidad del agua de los ríos del parque. Sin embargo, hay una monitorización muy limitada de la calidad del agua, debido principalmente a que los índicos biológicos como aquellos que se usan en Europa y en los Estados Unidos entre otros, no han sido desarrollados en Honduras. En 2009 se inició un proyecto de investigación con el fin de desarrollar un índice de calidad de agua basado en macroinvertebrados. Muestreo se llevó a cabo entre junio y agosto de 2009, y en ella se propuso muestrear captaciones superiores mínimamente alteradas de ríos de referencia. Este artículo evalúa el resultado (rendimiento) de una gama de índices de calidad de agua existentes, basados en macroinvertebrados bajo condiciones de referencia. Estos emplazamientos están en bosques primarios con poca o ninguna evidencia de influe...

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“…The higher the score, the better the ecological condition of the stream (MASON, 2002). The macroinvertebrate sampling facilities, the index calculation and also its direct interpretation of the perturbation status of a particular stream makes BMWP easily manageable (ZAMORA-MUÑOZ et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Assessment of ecological water quality along a rural to urban land use gradient using benthic macroinvertebrate-based indexes

Nascimento¹,

Alves‐Martins²,

Jacobucci³

2018

Biosci. J.

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Agricultural practices such as livestock grazing and tilling can result in soil erosion and runoff of fine sediments, nutrients (e.g. nitrogen, phosphorus, potassium) and pesticides, leading to degradation of aquatic environments. Urbanization is also responsible for a variety of impacts on fluvial ecosystems, including pollution by heavy metals, oil, domestic sewage and garbage. In this study, we evaluate the impact of land use on stream health of the Uberabinha river catchment. Overall, rural streams presented better ecological conditions than urban streams. Both species composition and abundance of benthic communities showed significant differences between rural and urban streams. Urban streams presented a higher dominance of Oligochaeta, Hirudinea and Gastropoda, bioindicators of poor water quality. Rural streams presented significantly greater richness and diversity. Compared to urban streams, rural streams presented a significantly higher number of Ephemeroptera, Plecoptera, Trichoptera, Odonata and Hemiptera taxa. Our analyses also showed congruence (high correlation) among the classical biodiversity metrics (Shannon-Wiener index -H', Pielou's measure of eveness -J) and monitoring parameters (% Ephemeroptera, Plecoptera and Trichoptera -EPT, Biological Monitoring Work Party -BMWP, bioindicator approach and Rapid Assessment Protocol -RAP, a habitatbased approach). Five from seven rural streams presented good water quality according to both BMWP and RAP and none of the urban streams presented good water quality. Our results show that the urban streams of Uberlândia municipality are poor ecosystems, and require improved management actions by environmental authorities. We also encourage that the riparian forest restoration and management carried out in the upper portion of Uberabinha River catchment to be extended to the urban area of the municipality.

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Are biological indices BMPW' and ASPT' and their significance regarding water quality seasonally dependent? Factors explaining their variations

Cited by 75 publications

References 9 publications

Relationship Between Micro-Invertebrates and Macrophytes in a Wetland: Laguna Iberá (Corrientes, Argentina). Implications for Water Quality Monitoring

Relationship Between Micro-Invertebrates and Macrophytes in a Wetland: Laguna Iberá (Corrientes, Argentina). Implications for Water Quality Monitoring

Performance of selected macroinvertebrate-based biotic indices for rivers draining the Merendon Mountains region of Honduras

Assessment of ecological water quality along a rural to urban land use gradient using benthic macroinvertebrate-based indexes

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