Exploiting high frequency monitoring and satellite imagery for assessing chlorophyll-a dynamics in a shallow eutrophic lake
Accepted: 15 June 2021
Supplementary 1: 48
Supplementary 2: 53
Supplementary 3: 52
HTML: 58
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Authors
Freshwater ecosystems are challenged by cultural eutrophication across the globe, and it is a priority for water managers to implement water quality monitoring at different spatio-temporal scales to control and mitigate the eutrophication process. Phytoplankton abundance is a key indicator of the trophic and water quality status of lakes. Phytoplankton dynamics are characterized by high spatio-temporal variation, driven by physical, chemical and biological factors, that challenge the capacity of routine monitoring with conventional sampling techniques (i.e., boat based sampling) to characterise these complex relationships. In this study, high frequency in situ measurements and multispectral satellite data were used in a synergistic way to explore temporal (diurnal and seasonal) dynamics and spatial distribution of Chlorophyll-a (Chl-a) concentration, a proxy of phytoplankton abundance, together with physico-chemical water parameters in a shallow fluvial-lake system (Mantua Lakes). A good agreement was found between Chl-a retrieved by remote sensing data and Chl-a fluorescence data recorded by multi-parameters probes (R2 = 0.94). The Chl-a maps allowed a seasonal classification of the Mantua Lakes system as eutrophic or hypertrophic. Along the Mantua lakes system an increasing gradient in Chl-a concentration was recorded following the transition from a fluvial to lacustrine system. There was significant seasonal heterogeneity among the sub-basins, probably due to different hydrodynamics, influenced also by macrophyte stands. High-frequency data revealed the importance of rainfall events in the timing and growth dynamics of phytoplankton, particularly for spring and late summer blooms. Combining temporal and spatial data at high resolution improves the understanding of complex fluvial-lake systems. This technique can allow managers to target blooms in near-real time as they move through a system and guide them to localized hot spots enabling timely management action in ecosystems of high conservation and recreational value.
Marine Science and Technology Center of Klaipeda University, 92294 Klaipeda, Lithuania
How to Cite
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Similar Articles
- Matteo PERINI, Federica CAMIN, Flavio CORRADINI, Ulrike OBERTEGGER, Giovanna FLAIM, Use of δ18O in the interpretation of hydrological dynamics in lakes , Journal of Limnology: Vol. 68 No. 2 (2009)
- Richard F. WRIGHT, Bernard J. COSBY, Recovery of acidified mountain lakes in Norway as predicted by the MAGIC model , Journal of Limnology: Vol. 63 No. 1 (2004)
- Esperança GACIA, Eglantine CHAPPUIS, Ana LUMBRERAS, Joan L. RIERA, Enric BALLESTEROS, Functional diversity of macrophyte communities within and between Pyrenean lakes , Journal of Limnology: Vol. 68 No. 1 (2009)
- Robin J. Smith, Dayou Zhai, Suktonthip Savatenalinton, Takahiro Kamiya, Na Yu, A review of rice field ostracods (Crustacea) with a checklist of species , Journal of Limnology: Vol. 77 No. 1 (2018)
- Oscar RAVERA, Gian Maria BEONE, Roberto CENCI, Paolo LODIGIANI, Metal concentrations in Unio pictorum mancus (Mollusca, Lamellibranchia) from of 12 Northern Italian lakes in relation to their trophic level , Journal of Limnology: Vol. 62 No. 2 (2003)
- Aldo MARCHETTO, Michela ROGORA, Measured and modelled trends in European mountain lakes: results of fifteen years of cooperative studies , Journal of Limnology: Vol. 63 No. 1 (2004)
- Finn Hirslund, An additional challenge of Lake Kivu in Central Africa - upward movement of the chemoclines , Journal of Limnology: Vol. 71 No. 1 (2012)
- Karina K. Tondato, Ibraim Fantin-Cruz, Olavo C. Pedrollo, Yzel R. Súarez, Spatial distribution of fish assemblages along environmental gradients in the temporary ponds of Northern Pantanal, Brazil , Journal of Limnology: Vol. 72 No. 1 (2013)
- Zhen Yang, Fanxiang Kong, Formation of large colonies: a defense mechanism of Microcystis aeruginosa under continuous grazing pressure by flagellate Ochromonas sp. , Journal of Limnology: Vol. 71 No. 1 (2012)
- Ulrike OBERTEGGER, Marina MANCA, Response of rotifer functional groups to changing trophic state and crustacean community , Journal of Limnology: Vol. 70 No. 2 (2011)
<< < 37 38 39 40 41 42 43 44 45 46 > >>
You may also start an advanced similarity search for this article.
-
Mariano Bresciani, Claudia Giardino, Alice Fabbretto, Andrea Pellegrino, Salvatore Mangano, Gary Free, Monica PinardiResources : 2022
-
Gary Free, Mariano Bresciani, Monica Pinardi, Claudia Giardino, Krista Alikas, Kersti Kangro, Eva-Ingrid Rõõm, Diana Vaičiūtė, Martynas Bučas, Edvinas Tiškus, Annelies Hommersom, Marnix Laanen, Steef PetersSensors : 2021