Anthropogenic and natural effects on the water and sediments qualities of costal lagoons: case of the Boughrara Lagoon (Southeast Tunisia)

Water quality of Mediterranean coastal plains: conservation implications from the Akyatan Lagoon, Turkey

“…Increasing of soluble nutrients affects the ecological characteristics of all species living in lagoons. Having small water quantity, shallow depths, and restricted water exchange, lagoons are sensitive to human impacts, freshwater, and nutrient inputs (Kharroubi et al 2012). However, increased NO 3 − concentrations surrounding S-1, S-2, and S-5 are likely to be due to relatively stagnant water around the stations due to low turbulence while the drainage water with relatively lower NO 3 − concentrations coming from the adjacent areas (i.e., Karataş district) is discharged into the drainage channels eventually reaching the lagoon.…”

“…Anthropogenic components of ecosystems are an important part of the harmful effects of corruption (Kharroubi et al 2012). The Akyatan Lagoon is recognized under the Ramsar Convention (the Convention on Wetlands of International Importance), which is an international treaty for the conservation and sustainable utilization of wetlands.…”

“…It should be noted that hypersalinity is the typical lagoon water condition and lower salinity values are the result of dilution from precipitation, drainage water, and seawater. The freshwater flowing to the lagoons causes to reduce the salinity of the lagoon water (Kharroubi et al 2012).…”

Critical Processes of Trace Metals Mobility in Transitional Waters: Implications from the Remote, Antinioti Lagoon, Corfu Island, Greece

“…The freshwater spring of groundwater origin that flows as a stream into the lagoon, is the major source of dissolved Mn, Cd, and Pb, as well as particulate (w/w) Mn, Cd, and Zn ( Table 2). The importance of groundwater discharges as a transport pathway of nutrients, carbon, and trace metals has been acknowledged in other coastal lagoon settings [7,70] and they are considered as a rival contributor to riverine inputs of land-derived material into the ocean [45,71,72]. Groundwater seepage in the Antinioti Lagoon is a field for future research, in order to elucidate whether the enrichment ascribes to natural geochemical processes, i.e., diagenesis, or to anthropogenic activities (e.g., the use of Cd-bearing phosphate fertilizers) throughout its catchment area.…”

“…Trace metals enter coastal lagoons through several pathways, such as atmospheric depositions [1], industrial and urban discharges [2,3], agricultural run-off [4,5], riverine inputs [6], groundwater discharges [7], as well as benthic fluxes [8,9]. Upon reaching the lagoons, trace metals, under variable physicochemical gradients, participate in a series of complex physical, geochemical, and biological processes that greatly affect the distribution of trace metals over the particulate and dissolved phases, as well as the composition of the deposited sediment, and eventually, the fluxes of metals that reach the adjacent sea.…”