Effects of Large Freshwater Diversions on Benthos of a Mediterranean Lagoon

Estuaries ◽  
1983 ◽  
Vol 6 (2) ◽  
pp. 115 ◽  
Author(s):  
G. Stora ◽  
A. Arnoux
Keyword(s):  
Mediterranean Lagoon ◽  
Freshwater Diversions

Long-term coexistence between the macroalga Caulerpa prolifera and the seagrass Cymodocea nodosa in a Mediterranean lagoon

2021 ◽  
pp. 103415
Author(s):  
M.D. Belando ◽  
J. Bernardeau-Esteller ◽  
I. Paradinas ◽  
A. Ramos-Segura ◽  
R. García-Muñoz ◽  
...  
Keyword(s):  
Cymodocea Nodosa ◽  
Mediterranean Lagoon ◽  
Caulerpa Prolifera

scholarly journals The meiofaunal community structure of a Mediterranean lagoon (Gialova lagoon, Ionian Sea)

2000 ◽  
Vol 54 (1) ◽  
pp. 7-17 ◽  
Author(s):  
V. E. McArthur ◽  
D. Koutsoubas ◽  
N. Lampadariou ◽  
C. Dounas
Keyword(s):  
Community Structure ◽  
Ionian Sea ◽  
Mediterranean Lagoon ◽  
Meiofaunal Community

Input of pharmaceuticals through coastal surface watercourses into a Mediterranean lagoon (Mar Menor, SE Spain): Sources and seasonal variations

2014 ◽  
Vol 490 ◽  
pp. 59-72 ◽  
Author(s):  
R. Moreno-González ◽  
S. Rodríguez-Mozaz ◽  
M. Gros ◽  
E. Pérez-Cánovas ◽  
D. Barceló ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Se Spain ◽  
Mediterranean Lagoon ◽  
Mar Menor

scholarly journals Continuous Monitoring of the Spatio-Temporal Patterns of Surface Water in Response to Land Use and Land Cover Types in a Mediterranean Lagoon Complex

2019 ◽  
Vol 11 (12) ◽  
pp. 1425 ◽  
Author(s):  
Zhichao Li ◽  
Yujie Feng ◽  
Nadine Dessay ◽  
Eric Delaitre ◽  
Helen Gurgel ◽  
...  
Keyword(s):  
Surface Water ◽  
Human Activities ◽  
Coastal Wetlands ◽  
Annual Variation ◽  
Coastal Lagoons ◽  
Sand Beach ◽  
Mediterranean Lagoon ◽  
Potential Link ◽  
Spatio Temporal ◽  
The Impact

Mediterranean coastal lagoons and their peripheral areas often provide a collection of habitats for many species, and they often face significant threats from anthropogenic activities. Diverse human activities in such areas directly affect the spatio-temporal dynamic of surface water and its ecological characteristics. Monitoring the surface water dynamic, and understanding the impact of human activities are of great significance for coastal lagoon conservation. The Regional Natural Park of Narbonne includes a typical Mediterranean lagoon complex where surface water dynamic and its potential link with local diverse human activities has not yet been studied. In this context, based on all the available Landsat images covering the study area during 2002–2016, this study identified the water and non-water classes for each satellite observation by comparing three widely used spectral indices (i.e., NDVI, NDWI and MNDWI) and using the Otsu method. The yearly water frequency index was then computed to present the spatio-temporal dynamic of surface water for each year, and three water dynamic scenarios were also identified for each year: permanent water (PW), non-permanent water (NPW) and non-water (NW). The spatial and inter-annual variation in the patterns of the three water scenarios were characterized by computing the landscape metrics at scenario-level quantifying area/edge, shape, aggregation and fragmentation. Finally, the quantitative link between different land use and land cover (LULC) types derived from the LULC maps of 2003, 2012 and 2015 and the surface water dynamic scenarios was established in each of the 300 m × 300 m grid cells covering the study area to determine the potential impact of human activities on the surface water dynamic. In terms of the inter-annual variation during 2002–2016, PW presented an overall stability, and NPW occupied only a small part of the water surface in each year and presented an inter-annual fluctuation. NPW had a smaller patch size, with lower connectivity degree and higher fragmentation degree. In terms of spatial variation during 2002–2016, NPW often occurred around PW, and its configurational features varied from place to place. Moreover, PW mostly corresponded to the natural lagoon, and salt marsh (as a part of lagoons), and NPW had a strong link with arable land (agricultural irrigation) and salt marsh (salt production), sand beach/dune, coastal wetlands and lagoon for the LULC maps of 2003, 2012 and 2015. However, more in-depth analysis is required for understanding the impact of sand beach/dune, coastal wetlands and lagoon on surface water dynamics. This study covers the long-term variations of surface water patterns in a Mediterranean lagoon complex having intense and diverse human activities, and the potential link between LULC types and the water dynamic scenarios was investigated on different dates. The results of the study should be useful for environmental management and protection of coastal lagoons.

Impact of Multiple Freshwater Diversions on the Salinity Distribution in the Pontchartrain Estuary under Tidal Forcing

2009 ◽  
Vol 10054 ◽  
pp. 59-70 ◽  
Author(s):  
Ioannis Y. Georgiou ◽  
J. Alex McCorquodale ◽  
Jennifer Schindler ◽  
Angel Gabriel Retana ◽  
Duncan M. FitzGerald ◽  
...  
Keyword(s):  
Salinity Distribution ◽  
Tidal Forcing ◽  
Freshwater Diversions

Influence of the Drainage Basin input on a Pathogenic Bacteria (Salmonella) Contamination of a Mediterranean Lagoon (The Thau Lagoon - France) and the Survival of This Bacteria in Brackish Water

1992 ◽  
Vol 25 (12) ◽  
pp. 105-114 ◽  
Author(s):  
P. Galès ◽  
B. Baleux
Keyword(s):  
Pathogenic Bacteria ◽  
Drainage Basin ◽  
Sewage Treatment ◽  
Water Levels ◽  
Sewer System ◽  
Sewage Treatment Plants ◽  
Mediterranean Lagoon ◽  
Episodic Events ◽  
Potential Sources ◽  
Thau Lagoon

Research has been carried out over a 10 month period with the aim of identifying potential sources of Salmonella contamination in a Mediterranean lagoon (the Thau Lagoon). Two types of source have been sampled, permanent ones which are checked monthly, and incidental ones. The highest occurrence of Salmonella is linked to episodic events brought on by rainfall. After summer low water levels, the rising of river water brings back into circulation water from pools previously formed by waste water from sewage treatment plants and sediments, thus creating a significant source of bacteria. The sewer system can also supply the Thau Lagoon with varying quantities of Salmonella when the system breaks down, and also when it is overloaded by an excess of rainwater following a storm. Monthly checks reveal that discharges of Salmonella occurred occasionally in permanent inputs, whereas the outflow from the Mèze pond provides a quasi-permanent, but negligible, source of contamination. The major risk of shellfish breeding contamination is thus associated with rainfall, and the occasional overflow of raw wastewater.The survival of Salmonella in the lagoon waters varies in function with the seasons, and the risk is greatest at those times of the year when autopurification can be affected.

Trace elements in sediments and bioaccumulation in European silver eels (Anguilla anguillaL.) from a Mediterranean lagoon (SE Italy)

2012 ◽  
Vol 92 (6) ◽  
pp. 676-697 ◽  
Author(s):  
Monia Renzi ◽  
Antonietta Specchiulli ◽  
Davide Baroni ◽  
Tommaso Scirocco ◽  
Lucrezia Cilenti ◽  
...  
Keyword(s):  
Trace Elements ◽  
Mediterranean Lagoon ◽  
Silver Eels
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