Pattern of variation of zooplankton assemblages under the influence of river runoffs: a study case along the Apulian marine coastal waters (southern Italy, Mediterranean Sea)

2014 ◽  
Vol 65 (7) ◽  
pp. 652 ◽  
Author(s):  
Enrico Barbone ◽  
Annamaria Pastorelli ◽  
Vito Perrino ◽  
Massimo Blonda ◽  
Nicola Ungaro
Keyword(s):  
Water Quality ◽  
Mediterranean Sea ◽  
Coastal Waters ◽  
Strong Influence ◽  
Southern Italy ◽  
Biological Indicator ◽  
Time Period ◽  
Study Case ◽  
Standing Stocks ◽  
Pattern Of Variation

The distribution and composition of zooplankton assemblages was investigated along the Apulian marine–coastal area (Mediterranean Sea) in the time period between January 2008 and February 2010. Zooplankton samples were collected monthly from 15 monitoring stations located in two sub-basins, namely, the southern Adriatic (11 stations) and the northern Ionian (4 stations). Results indicated a strong influence of river runoffs on zooplankton assemblages in terms of an increase in the abundance of tolerant species and a reduction of overall richness and diversity of species. Compared with the Ionian, in the Adriatic stations, zooplankton standing stocks showed higher abundances. Results also suggest that the zooplankton can be considered a useful biological indicator of water quality for the Apulian coastal waters and could be used in environmental monitoring programs.

scholarly journals Heavy metals monitoring in mussels Mytilus galloprovincialis from the Apulian coasts (Southern Italy)

2013 ◽  
Vol 14 (1) ◽  
pp. 99 ◽  
Author(s):  
L. SPADA ◽  
C. ANNICCHIARICO ◽  
N. CARDELLICCHIO ◽  
S. GIANDOMENICO ◽  
A. DI LEO
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Spatial Distribution ◽  
Health Risk ◽  
European Commission ◽  
Mediterranean Sea ◽  
Human Health ◽  
Coastal Water ◽  
Mytilus Galloprovincialis ◽  
Southern Italy

Concentrations of six heavy metals (Cd, Cr, Cu, Hg, Pb and Zn) and one semi-metal (As) were determined in tissues of mussels Mytilus galloprovincialis collected along the Apulian coasts (Mediterranean sea). This project, performed in 2009, was targeted toward the assessment of levels and spatial distribution of metals in the environment in order to evaluate the coastal water quality using mussels as bioindicators and health risk for mussel consumers.The concentrations (mg/kg d.w.) of these metals ranged from 6.35 to 76.17 for arsenic (As), 0.38 to 2.54 for cadmium (Cd), 0.96 to 9.46 for chromium (Cr), 5.26 to 19.22 for copper (Cu), 0.10 to 0.81 for mercury (Hg), 25.00 to 110.51 for zinc (Zn) and from 0.37 to 3.25 for lead (Pb). These levels were lower than the permissible limits set by European Commission and FAO with the exception for Cr in three sampling stations. Evaluation of the risk associated to molluscs consumption for human health suggested that there is no evident risk for a moderate Mytilus g. consumer, however heavy metals concentrations must be monitored periodically and carefully with respect to the consumers health.

Optimization of Regional Water Quality Monitoring Strategies

1987 ◽  
Vol 19 (5-6) ◽  
pp. 721-727 ◽  
Author(s):  
J. Pintér ◽  
L. Somlyódy
Keyword(s):  
Water Quality ◽  
Water Quality Management ◽  
Water Quality Monitoring ◽  
Primary Objective ◽  
Lake Balaton ◽  
Monitoring Networks ◽  
Monitoring Strategies ◽  
Time Period ◽  
Computational Aspects ◽  
Indicator Model

A conceptual framework is presented for optimizing the operation of regional monitoring networks which assist water quality management. The primary objective of the studied network is to determine the annual nutrient load carried into a lake by its tributaries. Following the description of the basic (single time–period, single water quality indicator) model, several extension possibilities and computational aspects are highlighted. The suggested methodology is illustrated by a numerical example, concerning the surveillance system on the tributaries of Lake Balaton (Hungary).

Management and Status of Japanese Public Waters

1991 ◽  
Vol 23 (1-3) ◽  
pp. 1-10 ◽  
Author(s):  
Takeshi Goda
Keyword(s):  
Water Quality ◽  
Coastal Waters ◽  
Industrial Wastewater ◽  
Quality Standards ◽  
Water Bodies ◽  
Industrial Wastewaters ◽  
Quality Of Water ◽  
Japanese Rivers ◽  
Per Capita

The management and status of public water bodies in Japan is discussed. The environmental quality standards which have been set and the levels of compliance with these standards are shown. The water quality of Japanese rivers, lakes, reservoirs, wetlands and coastal waters is described, and eutrophication problems are mentioned. The effects of changes in population density and levels of recycling of industrial wastewaters on the quality of water bodies are discussed. Almost 75% of industrial wastewater is now recycled. Per capita availability of freshwater in Japan is comparatively low, and the construction of 530 dams, in addition to the 2393 dams already in operation, is planned. Irrigation effluents from paddy fields are a major factor which influences river water quality in Japan. The improvement of water quality using various methods is discussed.

scholarly journals Identifying the main sources of silicate in coastal waters of the Southern Gulf of Valencia (Western Mediterranean Sea)

Oceanologia ◽  
2018 ◽  
Vol 60 (1) ◽  
pp. 52-64 ◽  
Author(s):  
Javier Sospedra ◽  
L. Felipe H. Niencheski ◽  
Silvia Falco ◽  
Carlos F.F. Andrade ◽  
Karina K. Attisano ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Coastal Waters ◽  
Western Mediterranean ◽  
Western Mediterranean Sea

scholarly journals Simulating the Impact of the Internal Structure of Phytoplankton on the Bulk Particulate Backscattering Ratio using a Two-Layered Spherical Geometry for Cells

2018 ◽  
Author(s):  
Lucile Duforêt-Gaurier ◽  
David Dessailly ◽  
William Moutier ◽  
Hubert Loisel
Keyword(s):  
Coastal Waters ◽  
Natural Waters ◽  
Heterotrophic Bacteria ◽  
Relative Concentration ◽  
Spherical Geometry ◽  
The Third ◽  
Study Case ◽  
Coated Spheres ◽  
The Impact ◽  
Phytoplankton Cells

The bulk backscattering ratio ($\tilde{b_{bp}}$) is commonly used as a descriptor of the bulk real refractive index of the particulate assemblage in natural waters. Based on numerical simulations, we analyze the impact of heterogeneity of phytoplankton cells on $\tilde{b_{bp}}$. $\tilde{b_{bp}}$ is modeled considering viruses, heterotrophic bacteria, phytoplankton, detritus, and minerals. Three study cases are defined according to the relative abundance of these different components. Two study cases represent typical situations in open ocean, outside (No-B/No-M) and inside bloom (B/No-M). The third study case is typical of coastal waters with the presence of minerals. Phytoplankton cells are modeled by a two-layered spherical geometry representing a chloroplast surrounding the cytoplasm. The $\tilde{b_{bp}}$ values are higher when heterogeneity is considered because the contribution of coated spheres to backscattering is higher than homogeneous spheres. The impact of heterogeneity is however strongly conditioned by the hyperbolic slope $\xi$ of the particle size distribution. Even if the relative concentration of phytoplankton is small (<1%), $\tilde{b_{bp}}$ increases by about 60% (for $\xi=4.3$ and for the No-B/No-M water body), when the heterogeneity is taken into account, in comparison with a particulate population only composed by homogeneous spheres. As expected, heterogeneity has a much smaller impact (about 5$\%$ for $\xi=4.3$) on $\tilde{b_{bp}}$ when minerals are added.

scholarly journals Water Use Special Features under the Water Resources Scarcity Conditions (the Ishim River as a Study Case)

2015 ◽  
pp. 4-19
Author(s):  
Keyword(s):  
Water Quality ◽  
Water Resources ◽  
Water Use ◽  
Water Consumption ◽  
Anthropogenic Impact ◽  
General Trend ◽  
Volume Reduction ◽  
Transboundary Basin ◽  
Study Case ◽  
Water Quality Deterioration

Special features of water use within the boundaries of the Ishim River transboundary basin (an area with very scanty water resources) have been analyzed. In spite of the general trend of water consumption volume reduction the water quality deterioration has been found in the basin. The degree of anthropogenic impact upon water resources have been assessed on the basis of direct and indirect indicators.

scholarly journals Assessment of vegetation and naturalness: a study case in Southern Italy

2008 ◽  
Vol 1 (3) ◽  
pp. 114-121 ◽  
Author(s):  
C Guarino ◽  
S Santoro ◽  
L De Simone
Keyword(s):  
Southern Italy ◽  
Study Case
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