Gökçeada Salt Lake: a Case Study of Seasonal Dynamics of Wetland Ecological Communities in the Context of Anthropogenic Pressure and Nature Conservation

• Published in: Wetlands (Wilmington, N.C.) N.C.), 2021-02, Vol.41 (2), p.23, Article 23
• Main Authors: Aslan, Herdem, Elipek, Belgin, Gönülal, Onur, Baytut, Özgür, Kurt, Yusuf, İnanmaz, Özgür E.
• Format: Article
• Language: English
• Subjects: Agricultural wastes; Agrochemicals; Anthropogenic factors; Aquatic birds; Aquatic ecosystems; Biochemical oxygen demand; Biomedical and Life Sciences; Birds; Canal construction; Canals; Chemical oxygen demand; Chlorophyll; Climate change; Coastal Sciences; Community ecology; Creeks & streams; Dissolved oxygen; Ecology; Environmental Management; Eutrophication; Flowers & plants; Freshwater & Marine Ecology; General Wetland Science; Heavy metals; Human influences; Hydrogeology; Insecticides; Lagoons; Landscape Ecology; Life Sciences; Nature conservation; Oxygen demand; Pest control; Pesticides; Plankton; Rainfall; Reptiles & amphibians; Salinity; Salt lakes; Seasonal variations; Species diversity; Tourism; Waste management; Water quality; Waterfowl; Wetlands; Wetlands Conservation; Zooplankton
• ISSN: 0277-5212; 1943-6246
• DOI: 10.1007/s13157-021-01401-0

Gökçeada Salt Lake (GSL) (Gökçeada Island, North Aegean Sea) is an important wetland area situated on established bird migratory routes. The waterbody is subject to significant variability in seasonal water quality and species diversity. Monthly observations indicate that a total of 29 waterbird species were present during 2015–2016. Rainfall was observed to influence waterbird abundance. There was also a strong correlation between waterbird and zooplankton species diversity, with water quality a further influencing factor. The seasonal abundance of 78 other aquatic species was also investigated. Spring and fall seasonal eutrophication, as a consequence of canal construction and suspected warming due to climate change has caused changes in Chlorophyll-a, dissolved oxygen, biological oxygen demand levels and grazing habits of aquatic species. Here, we propose GSL as a coastal lagoon model for a hydrodynamically sensitive habitat undergoing significant change from the combined threats of heavy metal pollution from a waste management facility, pesticide use for tourism and agriculture activity and wider climate impacts. We conclude that our results provide a paradigm for broad-scale monitoring programs encompassing all components of the wetland ecosystem under anthropogenic and climate change pressure, thus providing a tool to support and inform essential management and rehabilitation plans.