Monitoring Water Quality and Assessment of Land-Based Nutrient Loadings and Cycling in Kavala Gulf

Sylaïos, Georgios; Stamatis, Nikolaos; Kallianiotis, Argyris; Vidoris, Pavlos

doi:10.1007/s11269-005-3020-y

Cited by 38 publications

(26 citation statements)

References 12 publications

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“…The second generation of these sorts of studies have merged in 1970's focusing on understanding elemental dynamics and quantifying diffuse sources of pollutants in the watersheds (Bormann et al 1969;Likens et al 1970;Omernik 1976;Burton et al 1977a, b;Correll et al 1977; Thomas and Crutchfield 1974). The third generation of these studies have used the advantages of remote sensing, GIS and multivariate analysis to explore the land cover and suspended sediment (Hill 1981;Higashi and Nakane 1985;Allan et al 1997;Bolstad and Swank 1997;Jones et al 2001;Ahearn et al 2005); nutrients (Arheimer et al 1996;Osborne and Wiley 1988;Pekarova and Pekar 1996;Allan et al 1997;Sliva and Williams 2001;Jones et al 2001;Tong and Chen 2002;Ngoye and Machiwa 2004;Ahearn et al 2005;Sylaios et al 2005); ecological integrity of the stream (Tafangenyasha and Dube 2008;Roth et al 1996;Allan et al 1997;Wang 2001).…”

Section: Introductionmentioning

confidence: 99%

Modeling the Linkage Between River Water Quality and Landscape Metrics in the Chugoku District of Japan

Amiri

Nakane

2008

Water Resour Manage

133

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The present study was conducted using secondary database, remote sensing, geographical information system (GIS) and multivariate analysis tools in order to develop Multiple Linear Regression (MLR) models that could be able to predict level of water quality variables using compositional and spatial attributes of land cover in the river basins. The study encompasses 21 river basins with 32 000 Km 2 area, located in the Chugoku district in West Japan. Biological Oxygen Demand (BOD), pH, Dissolved Oxygen (DO), Suspended Solid (SS), Total Nitrogen (TN), and Total Phosphorus (TP) were considered as water quality variables of the stream. Satellite data was used to generate the land cover map of the study area. MLR models were developed using the compositional (%) and spatial attributes (landscape metrics) of the land cover at watershed and class levels for representing the land cover-stream water quality linkage. The results of the MLR modeling using the land cover data at the class level revealed that 92%, 74% and 62% of the total variations in concentration of DO, pH and TP were explained by changes in the measure of the spatial attributes of the land cover at the class level in the study area. These models can help local and regional land managers to understand the relationships between the compositional attribute (%) and the spatial features of the land cover and river water quality and would be applied in formulating plan for watershed-level management.

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Section: Introductionmentioning

confidence: 99%

Modeling the Linkage Between River Water Quality and Landscape Metrics in the Chugoku District of Japan

Amiri

Nakane

2008

Water Resour Manage

133

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“…Sakellariadou (1987) examined the Gulf's mineralogy and reported the presence of quartz (10-20%) and feldspars (40-50%) as the most abundant minerals in the coarse graded sediment fractions, while amphibole and pyroxene (5-10%), garnet (2-4%) and epidote (<4%) in the fine-grained fractions. The composition of gulf's sediments appears affected by Nestos river fluvial deposits (outflowing 30 km east of Thassos passage), being transported into the gulf by the west-directed coastal currents (Sylaios et al, 2005). The gulf is also the final recipient of land-based activities, such as wastes originating from urban population, industry and agriculture.…”

Section: Introductionmentioning

confidence: 99%

Sediment and Suspended Matter Lead Contamination in the Gulf of Kavala, Greece

Stamatis

Kamidis

Sylaïos

2006

Environ Monit Assess

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Sediment and suspended particulate matter samples from 24 stations in the Gulf of Kavala have been examined for lead contamination. Grain size analysis and organic matter content were also performed. Total -- anthropogenic sediment lead concentrations and enrichment factors at stations close to harbors and chemical industries were found higher (up to 209-135 micro g/g and 4.12 respectively), in relation to concentrations from the rest of the coastal zone. In the above areas, increased suspended particulate lead in the bottom of the water column was also recorded (up to 109 micro g/g). Total sediment lead concentrations composed of high natural Pb background increased with decreasing grain size, suggesting their association with the fine fractions of the sediments (31.1-66.0% mud presence) and the organic matter content (6-9% higher values). Overall, higher total lead concentrations in the sediments, determined by this work, appear to be significantly different from those reported for the Gulf of Kavala in previous studies and similar to those detected in other highly contaminated eastern Mediterranean coastal areas.

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“…The area is micro-tidal with a mixed tidal type (tidal form factor F =(O 1 + K 1 )/(M 2 + S 2 )∼0.35), implying semidiurnal constituent dominance, with the tidal range varying between 0.12 m during neap tides and 0.30 m during spring tides (Sylaios et al 2005). The average residual water level variations due to the action of wind and waves oscillate between −0.044 and +0.042 m in relation to mean water level, reaching maximum values during December and January .…”

Section: Study Area Descriptionmentioning

confidence: 99%

Suspended particulate matter estimates using optical and acoustic sensors: application in Nestos River plume (Thracian Sea, North Aegean Sea)

Anastasiou

Sylaïos

Tsihrintzis

2015

Environ Monit Assess

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The present study investigates the use of combined methods of optical and acoustic sensors, in collaboration with direct in situ measurements, for the calibration and validation of a model transforming acoustic backscatter intensity series into suspended particulate matter (SPM) concentration datasets. The model follows previously elaborated techniques, placing particular attention to the parameterization of the acoustic absorption index as a function of water physical properties. Results were obtained from the annual deployment (during 2007-2008) of an upward-facing acoustic Doppler current profiler (ADCP) (307 kHz), equipped with a Wave Array, and an optical backscatter sensor (OBS), at the bottom of Thassos Passage near Nestos River plume (Thracian Sea, Northern Greece). The OBS was calibrated through linear regression, using 2007 and 2012 field sampling data, exhibiting an error of 13-14 % due to chlorophyll presence. The ADCP signal was calibrated through simultaneous measurements of backscatter intensity and turbidity profiles. Harmonic analysis on the model-produced SPM concentrations explained the tidal influence on their variability, especially during the summer. Empirical orthogonal functions analysis revealed the impact of waves and wave-induced currents on SPM variability. Finally, Nestos River sediment load was found uncorrelated to the SPM change in Thassos Passage, due to the dispersal and sediment deposition near the river mouth.

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Monitoring Water Quality and Assessment of Land-Based Nutrient Loadings and Cycling in Kavala Gulf

Cited by 38 publications

References 12 publications

Modeling the Linkage Between River Water Quality and Landscape Metrics in the Chugoku District of Japan

Modeling the Linkage Between River Water Quality and Landscape Metrics in the Chugoku District of Japan

Sediment and Suspended Matter Lead Contamination in the Gulf of Kavala, Greece

Suspended particulate matter estimates using optical and acoustic sensors: application in Nestos River plume (Thracian Sea, North Aegean Sea)

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