Species-specific sensitivity of three microalgae to sediment elutriates
| Autor: | Maria Immacolata Ferrante, Marco Sacchi, Alessandra Gallo, Federica Carraturo, Lorenzo Morroni, Giovanna Armiento, Roberto Danovaro, Giusy Lofrano, F. Molisso, N. Mormile, David Pellegrini, Antonietta Siciliano, Marina Montresor, Giovanni Libralato, Marco Guida, Elisabetta Tosti |
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| Přispěvatelé: | Gallo, A., Guida, M., Armiento, G., Siciliano, A., Mormile, N., Carraturo, F., Pellegrini, D., Morroni, L., Tosti, E., Ferrante, M. I., Montresor, M., Molisso, F., Sacchi, M., Danovaro, R., Lofrano, G., Libralato, G. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Geologic Sediments 1:4 elutriate Dunaliella tertiolecta Aquatic Science Oceanography 010603 evolutionary biology 01 natural sciences Sensitivity Species Specificity Toxicity Tests Microalgae 14. Life underwater Phaeodactylum tricornutum Polycyclic Aromatic Hydrocarbons Metalloids Diatoms Weight of evidence biology Toxicity Chemistry 010604 marine biology & hydrobiology Sediment Chemical data General Medicine biology.organism_classification Pollution Diatom Metals 13. Climate action Environmental chemistry Metalloid Bioindicator Water Pollutants Chemical Environmental Monitoring |
| Popis: | Microalgae are considered good bioindicators of marine environmental quality. Frequently, they are used to investigate the toxicity of sediment elutriates, but their sensitivity is disputed. This paper compared the sensitivity of Phaeodactylum tricornutum (diatom), Skeletonema costatum (diatom), and Dunaliella tertiolecta (green alga), analyzing 257 samples of elutriates (1:4 sediment: water ratio), considering growth inhibition (72 h) as the reference endpoint and sediment chemical (metals, metalloids and polyaromatic hydrocarbons) and grain size. Results of the toxicity tests showed that the microalgae sensitivity was not correlated. The integration of chemical data did not allow to discriminate toxicity effects but contributed to highlight that D. tertiolecta was the most sensitive microalgae (no cell wall) followed by P. tricornutum and S. costatum. Further analysis, including lines of evidence and weight of evidence approaches to calculate risk quotients of elutriate samples, confirmed these results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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