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Meiobenthos and free-living nematodes as tools for biomonitoring environments affected by riverine impact
Semprucci, F.; Frontalini, F.; Sbrocca, C.; du Châtelet, E.A.; Bout-Roumazeilles, V.; Coccioni, R.; Balsamo, M. (2015). Meiobenthos and free-living nematodes as tools for biomonitoring environments affected by riverine impact. Environ. Monit. Assess. 187(5): 251. https://dx.doi.org/10.1007/s10661-015-4493-7
In: Environmental Monitoring and Assessment. Kluwer: Dordrecht. ISSN 0167-6369; e-ISSN 1573-2959
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| Trefwoord |
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| Author keywords |
Meiofauna; Nematodes; Water Framework Directive; Bioindicators; Water quality; Po river plume |
| Auteurs | | Top |
- Semprucci, F.
- Frontalini, F.
- Sbrocca, C.
- du Châtelet, E.A.
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- Bout-Roumazeilles, V.
- Coccioni, R.
- Balsamo, M.
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| Abstract |
The effects of the human impact on the coastal environments and relative biota can be different and even greater than those derived by natural fluctuations. The major disturbance causes in the coastal systems are rivers that may be important sources of nutrients and pollutants, particularly in a semi-closed basin such as the Adriatic Sea. In this context, we investigated the distribution of both meiobenthic and nematode assemblages in the Central Adriatic Sea to evaluate whether and how they are influenced by riverine discharges and which faunal descriptors are the most effective in detecting this type of stress. On the basis of our results, the disturbance effects in the studied area might be caused by both local streams and Po plume, and even if the latter might be considered of lesser extent, it is worthy to note its real impact at a short distance from the coastline. Meiobenthic assemblage structure appears as a good tool for detecting short-term responses of the benthic domain, whereas nematode assemblages seem more useful for defining long-term responses. Accordingly, the former highlighted from poor to sufficient ecological quality status (EQS) of this area, whereas the latter from moderate to bad EQS. Life strategy traits prove to be the most informative faunal descriptor due to their high correspondence with the environmental variables and particularly with this type of disturbance. |
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