A new fish-based multi-metric assessment index for cyprinid streams in the Iranian Caspian Sea Basin

Mostafavi, Hossein; Schinegger, Rafaela; Melcher, Andreas; Moder, Karl; Mielach, Carina; Schmutz, Stefan

doi:10.1016/j.limno.2014.10.006

Cited by 31 publications

(41 citation statements)

References 52 publications

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“…In this context, the metric "percentage of rheophilic species" was informative enough to discriminate intermediate conditions from the reference. The importance of rheophilic species as bioindicators has been documented in other studies (Terra et al 2013b, Mostafavi et al 2015. Armored catfishes, which have benthic and periphytivorous habits (Teresa and Casatti 2012), compose this functional group.…”

Section: Discussionmentioning

confidence: 71%

Metrics derived from fish assemblages as indicators of environmental degradation in Cerrado streams

Ávila¹,

Carvalho²,

Casatti³

et al. 2018

Zoologia

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ABSTRACT. The development of effective monitoring tools depends on finding sensitive metrics that are capable of detecting the most important environmental impacts at a given region. We assessed if metrics derived from stream fish assemblages reflect physical habitat degradation and changes in land cover. We sampled the ichthyofauna and environmental character- Some commonly used metrics did not reflect the disturbances and many others were redundant with those that did. These results indicate that the metrics derived from fish assemblages may be informative for identifying the conservation status of streams, with the potential to be used in biomonitoring.

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Section: Discussionmentioning

confidence: 71%

Metrics derived from fish assemblages as indicators of environmental degradation in Cerrado streams

Ávila¹,

Carvalho²,

Casatti³

et al. 2018

Zoologia

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“…There are several approaches for scoring the selected metrics (Blocksom 2003). The reference sites have a key role in scoring; reference sites with minimum disturbance can be used to determine optimal scores (Quataert et al 2011;Mostafavi et al 2015). If the reference conditions are not available, preclassification systems can be used (e.g., Fame manual 2004; Quataert et al 2011).…”

Section: Selection Of the Final Metricsmentioning

confidence: 99%

“…The validity of the index can be tested by internal or external datasets (Oberdorff et al 2002;Mostafavi et al 2015). An independent dataset including both pristine and impacted sites from water bodies with features similar to those used to develop the index is required for the external validation.…”

Section: Validationmentioning

confidence: 99%

“…) (Clavel et al 2013;Aazami et al 2015) are robust and powerful tools to reveal the effects of human activities (construction of dams, water abstraction, habitat fragmentation, etc.) on aquatic habitats (Lyons 2012;Sundermann et al 2013;Mostafavi et al 2015;Schnier et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…As such, several fish-based indices have been developed for lakes and rivers in America (Cunico et al 2011), Canada (Stevens and Council 2008), New-Zealand (Joy and Death 2004), Africa (Hugueny et al 1996) and Europe (Noble et al 2007;Breine et al 2010;. Fish-based indices are available only from Pakistan (Qadir and Malik 2009), China (Wu et al 2014), Taiwan (Hu et al 2007) and Iran (Mostafavi et al 2015) in Asia. Only one report on a fish-based index has been published recently for Akarçay and Küçük Menderes Basins in Turkey (Yerli et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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A technical guide to develop a statistically valid fish-based index in compliance with the water framework directive: an evaluation for Turkish freshwaters

2018

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Fish are considered as reliable indicators of environmental quality and during the last decades several fish-based indices have been developed to assess the ecological status of water bodies in compliance with the water framework directive. The high number of fish species with a high degree of endemism, lack of knowledge on ecological requirements of certain fish species, absence of a complete dataset for reference conditions, and great variation among freshwater types complicate the development of fish-based indices for Turkish freshwaters. However, this is still possible using statistical approaches. This paper presents a practical guide which is mainly based on the recent approaches that have frequently been used in other countries worldwide. Data collection, metric selection and scoring, ecological quality ratio (EQR) calculation and validation steps are described and discussed with respect to the limitations and available data for Turkish freshwaters. The guide documented here, with minor adjustments, has a potential to be adopted as a fish-based assessment approach for the ecological status in freshwaters in Turkey and adjacent countries.

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A fish‐based multi‐metric assessment index in the Karun River basin, Iran

Zare-Shahraki

Dorche

Keivany

et al. 2022

River Research & Apps

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Large river systems are one of the most important water resources for human societies. However, the ecological integrity of large rivers has been altered greatly by human activities. To monitor and manage these ecosystems, multimetric indices (MMI) are considered as efficient tools. This study aimed to develop and validate a fish‐based multimetric index for the Karun River basin, Iran (Karun fish‐based multi‐metric index [KFMMI]). Eighteen rivers and 54 sites in the basin were sampled in July–August 2019, and physico‐chemical and habitat characteristics were used to identify reference sites based on principal components analysis (PCA). Of the 54 sites, 14, 26, and 14 sites were classified as least, moderate, and most disturbed sites, respectively. Fifty‐four candidate metrics were evaluated for range, responsiveness, and redundancy with other metrics. This resulted in the identification of eight metrics (relative abundance of native and endemic taxa, relative richness of migratory taxa, relative richness of Leuciscidae taxa, relative richness of herbivorous taxa, relative abundance of cyprinid taxa, relative richness of vegetative inhabitant taxa, relative abundance of slow water flow, and relative richness of edge inhabitant taxa) that informed on species richness and composition, migratory status, functional feeding groups, and habitat preferences. The KFMMI showed excellent performance in separating least, moderate, and most disturbed sites in our study area. Regarding water quality, the KFMMI was classified 16, 5, and 29 sites as good, moderate, and bad, respectively. The discrimination efficiency of KFMMI was 81.6%, which makes it an effective management tool for directing restoration actions at most disturbed sites and intensifying protection of least disturbed sites.

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A new fish-based multi-metric assessment index for cyprinid streams in the Iranian Caspian Sea Basin

Cited by 31 publications

References 52 publications

Metrics derived from fish assemblages as indicators of environmental degradation in Cerrado streams

Metrics derived from fish assemblages as indicators of environmental degradation in Cerrado streams

A technical guide to develop a statistically valid fish-based index in compliance with the water framework directive: an evaluation for Turkish freshwaters

A fish‐based multi‐metric assessment index in the Karun River basin, Iran

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