Main outcomes of QWATER

The main objectives of QWATER were:

1. Develop and evaluate short-term cost-effective in situ assays based on the postexposure feeding (Task 1) for 3 representative species of those links in the food chain that were not available within the bioassays battery, namely a benthic omnivorous isopod, a macroalgae-associated omnivorous amphipod and a filtering species.

In the context of the Objetive 1 in situ assays for Cyatura carinata (see details), Echinogammarus marinus (see details) and Cerastoderma edule (see details) were developed and fine-tuned. In addition, two methodological studies with C. carinata (see details) and Peringia ulvae (see details) were performed to complete the assessment of the bioassays endopoints sensitivity .

2. Verify whether the robustness of the EQS of portuguese estuaries (Task 2) is strengthened by the integration of the ecotoxicological line of evidence (ecotoxicity results from six simultaneously deployed in situ bioassays [Task 3]: microalgae, polychates, gastropods, amphipods, isopods, and crabs), reducing the assessments inherent uncertainties (Task 4).

A review on the ecological quality status assessment in aquatic systems evaluating the combined use of community based indicators and ecotoxicological tools (see details). The battery of in situ assays was assessed on the estuaries of both Mondego and Lima rivers (see details).

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