Novel approaches for evaluation of ecological quality for restoration efforts

Assessment of contamination with passive samplers and juvenile fish analyses

Passive samplers and juvenile fish analyses are useful to study and monitor restoration cases where contamination by hazardous substances occurs. Techniques and approaches open new possibilities for monitoring.

The chemical status of waters in Water Framework Directive is based on the presence and concentration of priority substances such as heavy metals or polyaromatic hydrocarbons (PAHs).

Passive sampling is based on flow of molecules from the sampled medium (water) to a collecting medium. Juvenile fish stay on a limited area during their first summer, represent local conditions and their availability for analysis is usually good. The methods can be used to detect occasional pollution over a longer time span than the typical water samples representing one moment..

Passive sampling is able to achieve results in circumstances where point sampling cannot monitor the total impact. 

For assessment of contamination impacts, passive sampling approach and juvenile fish analyses are notable biomonitoring techniques.

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More information:  University of South Bohemia, Czech Republic 

 

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