Article

Rosenberg R, Blomqvist M, Nilsson HC, Cederwall H, Dimming A.. Marine quality assessment by use of benthic species-abundance distributions: a proposed new protocol within the European Union Water Framework Directive. Mar Pollut Bull 49: 728-739

Stockholm University, Tukholma, Stockholm, Sweden
Marine Pollution Bulletin (Impact Factor: 2.99). 12/2004; 49(9-10):728-39. DOI: 10.1016/j.marpolbul.2004.05.013
Source: PubMed

ABSTRACT

The aim of this study is to develop a new method for classification of marine benthic quality according to the European Union Water Framework Directive. Tolerance values to environmental disturbance were determined in an objective analysis for benthic species along the Swedish west coast by using 4676 samples from 257 stations. Based on a combination of the species tolerance values, abundance and diversity, a benthic quality index (BQI) was calculated for the assessment of environmental status at a particular station. The qualification of BQI was evaluated in relation to known spatial and temporal gradients of disturbance.

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    • "The BQI is one of the most widely used multimetric indices for macrofauna status assessment (Rosenberg et al., 2004; Fleischer and Zettler, 2009; Leonardsson et al., 2009). Although designed for application in marine areas, it is also considered to be suitable for different environments provided that the assigned species' tolerance/sensitivity values are based on individual data sets and "
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    ABSTRACT: The European Marine Strategy Framework Directive requires EU Member States to prepare national strategies and manage their seas to achieve good environmental status (GES) by 2020. There are many multimetric indices proposed as indicators of the ecological quality of the benthic environment. Their functionality and utility are extensively discussed in the literature. Different frameworks are suggested for comparative assessments of indicators with no agreement on a standardized way of selecting the most appropriate one. In the current study, we apply signal detection theory (SDT) to evaluate the specificity and sensitivity of the Benthic Quality Index (BQI), its response to the eutrophication pressure, and its performance under the effects of estuarine water outflow. The BQI showed acceptable response to total nitrogen, total phosphorus and chlorophyll-a concentrations in the study area. Based on the results, we suggest using SDT for setting GES thresholds in a standardized way. This aids a robust assessment of the environmental status and supports differentiation between the quality classes.
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    • "It is converted in EQR by scaling relative to the maximal BQI measured within the considered community (Rosenberg et al., 2004). EQR is then converted into a station EcoQ (Leonardsson et al., 2009) based on the division of the 0–1 range in 5 equal classes (Rosenberg et al., 2004; Table 1). "
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    ABSTRACT: A comprehensive Mediterranean data set has been used to address 3 questions associated with the use of sensitivity/tolerance based biotic indices to infer the Ecological Quality status (EcoQs) of benthic habitats. Our results showed: (1) a significant effect of the reference database on derived sensitivity/tolerance measure (ES500.05) as well as associated Benthic Quality Index values and derived EcoQs; (2) a lack of correlation neither between BQI and AZTI Marine Biotic Index values nor between BQI and Multivariate-AZTI Marine Biotic Index values; (3) a lack of correlation between the values of the Benthic Habitat Quality Index (index derived from Sediment Profile Imagery) and those of either of the 3 tested biotic indices; and (4) a general agreement between the 3 tested biotic indices in describing the lack of global trend for the EcoQs of the Gulf of Lions despite the occurrence of significant changes in benthic macrofauna composition between 1998 and 2010.
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    • "). In addition, a series of biotic indices used in the context of the WFD was calculated: BQI (Rosenberg et al., 2004) as modified in Leonardsson et al. (2009), BQI-Family (Dimitriou et al., 2012) using the species/ families tolerance values provided by Dimitriou et al. (2012), as well Fig. 1. Map of study area in Maliakos Gulf, eastern Mediterranean. "
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    ABSTRACT: Biological and geochemical variables in the water column and sediments were monitored along a transect of a mussel farm located in a transitional environment in Maliakos Gulf, a semi-enclosed gulf in eastern Mediterranean. Analyses of water, sediment and macrofauna samples were used to calculate ecological status indicators in the context of the European Water Framework Directive. The water column ecological status was "Poor" or "Bad" showing little change with distance from the farm, but the ecological status of the benthic communities was found to be "Good," although there were quantitative changes in macrofaunal indices with distance from the farm.
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