Detecting Eutrophication Symptoms in a Subtropical Semi-Arid Coastal Lagoon by Means of Three Different Methods

Excess supply of nutrients of anthropogenic origin is one of the main drivers of global change that is affecting the ecological function and provision of ecosystem services by coastal wetlands. This study examines the response of a subtropical semi-arid coastal lagoon to anthropogenic nutrient input...

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Bibliographic Details
Published in:Wetlands (Wilmington, N.C.) N.C.), 2017-12, Vol.37 (6), p.1105-1118
Main Authors: Ruiz-Ruiz, Thelma M., Arreola-Lizárraga, José A., Morquecho, Lourdes, Mendez-Rodríguez, Lía C., Martínez-López, Aída, Mendoza-Salgado, Renato A.
Format: Article
Language:English
Subjects:
Agricultural wastes
Algae
Anthropogenic factors
Aquatic ecosystems
Arid zones
Aridity
Biomedical and Life Sciences
Coastal Sciences
Coastal waters
Discharge
Ecological function
Ecology
Ecosystem services
Ecosystems
Environmental conditions
Environmental Management
Eutrophication
Freshwater & Marine Ecology
Hydrogeology
Identification methods
Lagoons
Landscape Ecology
Life Sciences
Nitrogen
Nutrients
Original Research
Precipitation
Salinity
Taxonomy
Trophic status
Urban agriculture
Wastewater discharges
Water quality
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Summary:Excess supply of nutrients of anthropogenic origin is one of the main drivers of global change that is affecting the ecological function and provision of ecosystem services by coastal wetlands. This study examines the response of a subtropical semi-arid coastal lagoon to anthropogenic nutrient input, through the use and comparison of eutrophication indices and models, and compares the usefulness of such methods to identify eutrophication symptoms. The Lobos Lagoon is located on the eastern coast of the Gulf of California and receives agricultural and urban wastewater discharges. To identify potential eutrophication symptoms, the Trophic IndeX (TRIX), the Arid Zone Coastal Water Quality Index (AZCI) along with the Assessment of Estuarine Trophic Status (ASSETS) model were used. Lobos Lagoon was found to have good environmental condition; however eutrophication symptoms were identified in the zone where untreated urban and agricultural wastewaters are discharged. Results obtained using the three methods were consistent and, thus, their performance can be considered as good and complementary, and can be used to evaluate the extent of eutrophication in subtropical semi-arid coastal lagoons.
ISSN:0277-5212
1943-6246
DOI:10.1007/s13157-017-0944-y