Long-term dynamics in nutrients, chlorophyll a and water quality parameters in the Lagoon of Venice
Since 1997, CNR-ISMAR has been collecting monthly hydrochemical and phytoplankton data in the northern and central basins of the Lagoon of Venice. The data have been part of the International Long-Term Ecosystem Research (LTER) database since 2007, helping to fill a gap in lagoon environmental studies. Analysing our time series (1998-2017), we were able to observe a rise in water temperature due to climate trends, a reduction in trophic status mainly due to the lower input of inorganic dissolved nitrogen nutrients and an increase in transparency and dissolved oxygen related to the increased biomass of macrophytes (macroalgae and seagrasses). Finally, a reduction in phytoplankton biomass and an accompanying increase in seagrass and macroalgal cover were observed. Present and future studies will help to evaluate the ways in which the Lagoon of Venice ecosystem responds to anthropogenic pressures and global climate change.
Desde 1997, el CNR ISMAR ha recopilado datos mensuales de hidroquímica y fitoplancton en las zonas del norte y centro de la Laguna de Venecia. Desde el 2007 los datos hacen parte de la base de datos LTER (International Long-Term Ecosystem Research), ayudando a llenar la falta de datos en los estudios ambientales de la Laguna. Analizando nuestra serie histórica (1998-2017), pudimos observar un aumento de la temperatura del agua debido a las tendencias climáticas, una reducción del estado trófico debido principalmente al menor suministro de nutrientes inorgánicos de nitrógeno disuelto y un aumento de la transparencia y del oxígeno disuelto relacionado al aumento de la biomasa de macrófitas (macroalgas y fanerógamas). Por último, se observó una reducción de la biomasa del fitoplancton y al mismo tiempo un aumento de fanerógamas y macroalgas. Los actuales y futuros estudios ayudarán a evaluar las formas en el cual el ecosistema de la Laguna de Venecia responderá a las presiones antropogénicas y al cambio climático global.
Bibliographic data
| Translated title: | Dinámica temporal de nutrientes, clorofila a y parámetros de calidad del agua en la Laguna de Venecia |
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| Journal Title: | Scientia Marina |
| First author: | Francesco Acri |
| Other Authors: | Federica Braga; Fabrizio Bernardi Aubry |
| Palabras clave: | |
| Traslated Keywords: | |
| Language: | English |
| Get full text: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1863 |
| Resource type: | Journal Article |
| Source: | Scientia Marina; Vol 84, No 3 (Year 2020). |
| DOI: | http://dx.doi.org/10.3989/scimar.05022.30A |
| Publisher: | Consejo Superior de Investigaciones Científicas CSIC |
| Usage rights: | Reconocimiento (by) |
| Knowledge areas / Categories: | Life Sciences --> Marine --AMP-- Freshwater Biology |
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