Nutrient Limitation in a Coastal System Influenced by Mussel Farming, River Outflow and On-shore Circulation of Waters

Moriki, Amalia; Antoniou, Alexander; Savvidis, Yiannis; Papadimitriou, C.A.; Stoilas, Vasilis‐Orestis

doi:10.1007/s40710-019-00391-w

Cited by 5 publications

(3 citation statements)

References 17 publications

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Section: Monitoring Of Nutrients and Chlorophyll-amentioning

confidence: 85%

“…While chlorophyll-a values were low (about 0.2 mg m −3 ) in summer and autumn (Figure 10), a peak was observed during early spring with the chlorophyll being marginally sufficient for sustaining both the mussel feeding activity and phytoplankton production, both at the reference and sampling site. Dissolved oxygen concentrations, on the other hand, showed well oxygenated waters in all cases [30]. While chlorophyll-a values were low (about 0.2 mg m −3 ) in summer and autumn (Figure 10), a peak was observed during early spring with the chlorophyll being marginally sufficient for sustaining both the mussel feeding activity and phytoplankton production, both at the reference and sampling site.…”

Section: Monitoring Of Nutrients and Chlorophyll-amentioning

confidence: 91%

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The Role of Hydrodynamics on the Sustainable Mussels’ Culture Activity. The Case of the Chalastra Basin (NW Gulf of Thessaloniki)

et al. 2021

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In line with the framework of strategic guidelines for marine aquacultures, mussel cultures have to be operated in Areas of Organized Aquaculture Development (AOAD). Forty per cent of the national mussel culture production, which is based in Chalastra (NW Gulf of Thessaloniki, part of the Thermaikos Gulf), uses pole and longline systems. Due to legislative changes, both farmers and the authorities are in the process of reforming the existing units and planning processes based on the principles of sustainability, as defined in AOAD. The aim of this study is to estimate the appropriate orientation lines on which the mussel socks are to be placed in the mussel culturing units, in relation to the direction of sea currents for optimum water circulation in AOAD. The hydro-dynamics of the Chalastra basin is mainly wind driven and affected by prevailing northerly and southerly winds during winter and summer periods, respectively. When placed perpendicular to sea currents, the socks in the mussel production lines form an obstacle. Thus, the appropriate orientation of pole and longline units based on natural current directions can comprise a useful tool for sustainable mussel cultures. The benefits arising from the application of the proposed scheme are twofold: (a) productivity through the appropriate circulation and regeneration of nutrients can be maximized and (b) the environmental impacts of mussel culture activity can be minimized, as byproducts can more easily be dispersed of and biodegraded. In the present study, two basic schemes are proposed: (a) the division of AOAD is being researched into three sub-areas for pole and long-line units respectively and (b) the placement of the shortest possible length of production lines parallel to sea currents.

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Section: Monitoring Of Nutrients and Chlorophyll-amentioning

confidence: 85%

Section: Monitoring Of Nutrients and Chlorophyll-amentioning

confidence: 91%

The Role of Hydrodynamics on the Sustainable Mussels’ Culture Activity. The Case of the Chalastra Basin (NW Gulf of Thessaloniki)

et al. 2021

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“…The threat of watercourses and surface water enrichment in nutrients is high especially during early spring when fertilizers are used 6 . Point sources of nitrogen and phosphorus that enter surface waters include, above all, sewage discharges from wastewater treatment plants (WWTP) 7 . This source can be called one of the most important because the sewage ows into the receiver in a constant way and the amount of nutrients is subject to periodic analysis.…”

Section: Introductionmentioning

confidence: 99%

Changes in Particle Size Distribution in Hydroponic Lagoons Working as A Third Stage of Wastewater Treatment

Bawiec¹,

Pawęska²,

Pulikowski³

et al. 2020

Preprint

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The aim of research was to evaluate changes in the particle size distribution in two hydroponic lagoons working as a third stage of wastewater treatment where purification processes are based on plants and algae activity. Wastewater samples were taken during the winter and summer half of the year. In the samples taken from analyzed hydroponic lagoons the range of particles size was very wide (0.01 – 1000.0 μm). In both of the research facilities, the fractal dimension (Df) of particles was close to 2.0 what decides about developed surface of the particles. The results may indicate the predominance of algae cells in the total amount of suspensions. This information may pay a key role in determination the impact of discharged particles on the receiving water bodies quality as well as can be the main factor that allows to improve the system of suspended solids removal.

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Physiological responses of the diatoms Thalassiosira weissflogii and Thalassiosira pseudonana to nitrogen starvation and high light

Qiao

Zang

Fang

et al. 2021

Marine Environmental Research

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Nutrient Limitation in a Coastal System Influenced by Mussel Farming, River Outflow and On-shore Circulation of Waters

Cited by 5 publications

References 17 publications

The Role of Hydrodynamics on the Sustainable Mussels’ Culture Activity. The Case of the Chalastra Basin (NW Gulf of Thessaloniki)

The Role of Hydrodynamics on the Sustainable Mussels’ Culture Activity. The Case of the Chalastra Basin (NW Gulf of Thessaloniki)

Changes in Particle Size Distribution in Hydroponic Lagoons Working as A Third Stage of Wastewater Treatment

Physiological responses of the diatoms Thalassiosira weissflogii and Thalassiosira pseudonana to nitrogen starvation and high light

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