Alternative approach for establishing acceptable thresholds on macroinvertebrate community metrics

Smith, J.; Beauchamp, John J.; Stewart, Arthur J.

doi:10.1899/02-118.1

Cited by 19 publications

(12 citation statements)

References 55 publications

(28 reference statements)

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“…It supports the arguments for the applicability and robustness of this methodology in the establishment of biological criteria to discriminate between reference and impaired sites Maxted et al, 2000;Weigel, 2002;Ofenbö ck et al, 2004). However, some authors indicate the need for improvement of the methodology for data analysis, bioevaluation and biomonitoring, using macroinvertebrates (Barbour et al, 1995;Gerritsen, 1995;Smith et al, 2005).…”

Section: Discussionmentioning

confidence: 55%

“…All the possible source of errors must be minimized during the establishment of a multimetric index in order to obtain an ideal accuracy and an adequate reproducibility through time (Smith et al, 2005). The natural seasonal variability, associated to sampling problems and dubious interpretations of physical-chemical data, may become additional source of errors in an accurate classification of reference sites .…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

A multimetric index based on benthic macroinvertebrates for evaluation of Atlantic Forest streams at Rio de Janeiro State, Brazil

et al. 2006

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This study describes the application of a protocol for biological assessment of water quality at first to third order streams at Serra dos Ó rgã os, an area covered by Atlantic Forest in Rio de Janeiro State, Brazil. Major impacts in the region are domestic effluents and deforestation. Our main objective is to establish biocriteria for the establishment of the Serra dos Ó rgã os Multimetric Index (SOMI) based on benthic macroinvertebrates. We used data from previous studies, sampled by experienced biologists, from 1999 through 2002. The benthic macroinvertebrate community was sampled in 12 reference sites and seven impaired sites in three river basins: Guapimirim, Macaé and Grande, all from the same bioregion. From the 22 tested metrics, 6 were included in the SOMI (% Diptera, % Coleoptera, Family Taxa, EPT Taxa, BMWP-CETEC and % Shredders). Scores (5, 3 or 1) were developed for these metrics to allow for aggregation into the index. Seven intermediately impaired sites were used for evaluating the applicability of the multimetric index. We concluded that the SOMI is a robust easy-to-apply tool for biomonitoring programs in the Serra dos Ó rgã os region, south-east Brazil.

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Section: Discussionmentioning

confidence: 55%

Section: Discussionmentioning

confidence: 99%

A multimetric index based on benthic macroinvertebrates for evaluation of Atlantic Forest streams at Rio de Janeiro State, Brazil

et al. 2006

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“…Specular reflectance also occurs in wetlands dominated by lower biomass herbaceous vegetation when a layer of water is present [129]. Conversely, the radar signal is often increased in forested wetlands when standing water, such as flooding, is present due to the double-bounce effect, i.e., the radar pulse is reflected strongly by the water surface away from the sensor (specular reflectance) but is then redirected back towards the sensor by a second reflection from a nearby tree trunk [128,130]. Wetland InSAR is a unique application of the interferometric synthetic aperture radar (InSAR) technique that detects elevation changes of aquatic surfaces.…”

Section: Detecting and Mapping Wetlandsmentioning

confidence: 99%

Advances in Watershed Science and Assessment

Younos¹,

Parece²

2015

The Handbook of Environmental Chemistry

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“…Usually, impairment or condition thresholds are established arbitrarily by dividing the data set into groups based on percentiles of the reference site range (e.g., <25th percentile of reference site samples; Hannaford & Resh 1995). Smith et al (2005) suggested that the use of tolerance intervals, that take data variability into account, would remove some of the subjectivity of using standard percentiles. In contrast, van Sickle et al (2005) used 2 SD of the mean of reference sites to define impairment in an O/E model for midAtlantic and North Carolina streams, United States.…”

Section: Development Of Condition Bandsmentioning

confidence: 99%

Average score per metric: An alternative metric aggregation method for assessing wadeable stream health

Collier

2008

New Zealand Journal of Marine and Freshwater Research

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Integrating multiple metrics derived from stream macroinvertebrate communities into single scores that reflect ecological condition can bridge the needs of multiple groups using biomonitoring data. Macroinvertebrate metrics from 511 Waikato, New Zealand, stream samples were standardised by their maximum observed value. Metric redundancy and optimisation processes identified three standardised metrics from an initial set of 17 that provided greatest discrimination between reference sites and those influenced by urbanisation or high levels of pastoral development: the richness of Ephemeroptera, Plecoptera and Trichoptera excluding Hydroptilidae (EPT*), % EPT* and the macroinvertebrate community index (MCI). The mean of these standardised metrics was used to calculate the average score per metric (ASPM). Narrative condition bands were developed based on the lower SD of individual metrics for reference samples to distinguish "very high" values, and metric quartiles between this point and a hypothetical worst-case community were used to define "high", "moderate", "low", and "very low" bands. When compared with its component metrics, the ASPM distinguished reference conditions and low-moderate levels of catchment modification and local habitat degradation more accurately than EPT* richness or MCI, and displayed lower temporal variability within reference sites than either EPT* metric. The ASPM was calculated for an independent test data set of urban and reference sites which, respectively, were allocated to low-very low and high-very high narrative condition bands. This analysis suggests that prudent application of the ASPM can provide a parsimonious and effective screening tool for assessing the condition of wadeable streams where more complex methods are not practical.

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Alternative approach for establishing acceptable thresholds on macroinvertebrate community metrics

Cited by 19 publications

References 55 publications

A multimetric index based on benthic macroinvertebrates for evaluation of Atlantic Forest streams at Rio de Janeiro State, Brazil

A multimetric index based on benthic macroinvertebrates for evaluation of Atlantic Forest streams at Rio de Janeiro State, Brazil

Advances in Watershed Science and Assessment

Average score per metric: An alternative metric aggregation method for assessing wadeable stream health

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