Environmental impact of intensive aquaculture: Investigation on the accumulation of metals and nutrients in marine sediments of Greece

Farmaki, Elena; Thomaidis, Nikolaos S.; Pasias, Ioannis N.; Baulard, Cecile; Papaharisis, Leonidas; Efstathiou, C.

doi:10.1016/j.scitotenv.2014.03.125

Cited by 85 publications

(38 citation statements)

References 24 publications

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“…In research conducted in northwestern Poland, the greatest increase of organic matter and nutrients in a river was reported at the time of effluent discharge from fish farms when the BOD 5 level increased from 8.9 to 18.3 mgO 2 /dm 3 [25]. Farmaki et al (2015) also highlighted the effect of aquaculture on increasing the level of phosphorus and nitrate in the receiving water resources [26]. León-Muñoz et al (2013) also investigated the concurrent effect of construction of trout farm pools and land use changes on the quality of water and sediments in Rupanco Lake in Chile and reported similar results [27].…”

Section: Statistical Test Results By Monthmentioning

confidence: 99%

Determining Multivariate Analysis Sampling Frequency for Monitoring Contamination Caused by Trout Farms

Tavakol¹,

Arjmandi²,

Shayeghi³

et al. 2017

Pol. J. Environ. Stud.

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Recent rapid growth of the aquaculture industry and the necessity to comply with environmental standards suggest the need for studies on the possible negative effects of this type of industry. One of the most devastating effects of aquaculture is water pollution caused by the discharge of untreated effluent from fish farms into aquatic ecosystems. Assessment of the pollutants requires an optimal design of a water monitoring network in a way to demonstrate changes in aquatic environments. Accordingly, the present study used multivariate statistical analysis to determine sampling frequency for optimal monitoring of the contaminants resulting from trout farms in the Haraz River in northern Iran. For this purpose, a total number of 17 physical and chemical water quality parameters were sampled monthly over a one-year period based on the instructions recommended in the standard method (2005) [1]. The results showed that changes in biochemical oxygen demand (BOD) during the warm months of summer were very high and reached its peak in August and September. This may be attributed to the increased fish production in fish farms, increased food intake to feed the fish, and higher rate of discharge from fish farms containing waste feed and fish faeces. The nitrate also reached its maximum level in June due to the same reasons. Conversely, dissolved oxygen (DO) level was the lowest in the warm months (August and September). The reason would be increased consumption of DO due to higher production rate in the fish farms and increased metabolism of fish in warm months. Overall, the findings confirmed the applicability of multivariate techniques in

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Section: Statistical Test Results By Monthmentioning

confidence: 99%

Determining Multivariate Analysis Sampling Frequency for Monitoring Contamination Caused by Trout Farms

Tavakol¹,

Arjmandi²,

Shayeghi³

et al. 2017

Pol. J. Environ. Stud.

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“…Point sources of pollutants such as excess nutrients, hazardous organics, heavy metals, hydrocarbons and nanoparticles affect marine aquaculture activities [151,152]. For example, petroleum from accidental oil spills has been reported near active aquacultural areas [153].…”

Section: Eps-based Products For Aquaculture Applicationsmentioning

confidence: 99%

Implications of Extracellular Polymeric Substance Matrices of Microbial Habitats Associated with Coastal Aquaculture Systems

Camacho-Chab

Lango-Reynoso

Castañeda-Chávez

et al. 2016

Water

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Coastal zones support fisheries that provide food for humans and feed for animals. The decline of fisheries worldwide has fostered the development of aquaculture. Recent research has shown that extracellular polymeric substances (EPS) synthesized by microorganisms contribute to sustainable aquaculture production, providing feed to the cultured species, removing waste and contributing to the hygiene of closed systems. As ubiquitous components of coastal microbial habitats at the air-seawater and seawater-sediment interfaces as well as of biofilms and microbial aggregates, EPS mediate deleterious processes that affect the performance and productivity of aquaculture facilities, including biofouling of marine cages, bioaccumulation and transport of pollutants. These biomolecules may also contribute to the persistence of harmful algal blooms (HABs) and their impact on cultured species. EPS may also exert a positive influence on aquaculture activity by enhancing the settling of aquaculturally valuable larvae and treating wastes in bioflocculation processes. EPS display properties that may have biotechnological applications in the aquaculture industry as antiviral agents and immunostimulants and as a novel source of antifouling bioproducts.

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“…[10] Cu 2+ can moves through the water, accumulates the soil, and enters to our living environment and cause serious harm to human beings and other organisms. Therefore, it is necessary to study the removal of copper ions from water, during the past few years, many new methods have been used to remove Cu 2+ from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Cu(II) from aqueous solution on sulfuric acid treated palygorskite

Niu

Yuan

Gao

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The absorption behavior of Cu2+ from aqueous solution on sulfuric acid treated palygorskite were investigated, the results showed that palygorskite had high absorption ability for Cu 2+ from aqueous solution. Effects of the shaking time, pH and the copper ion concentration on the removal rate were discussed. The absorption behavior of Cu 2+ could be well imitated by the Langmuir isothermal equation.

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Environmental impact of intensive aquaculture: Investigation on the accumulation of metals and nutrients in marine sediments of Greece

Cited by 85 publications

References 24 publications

Determining Multivariate Analysis Sampling Frequency for Monitoring Contamination Caused by Trout Farms

Determining Multivariate Analysis Sampling Frequency for Monitoring Contamination Caused by Trout Farms

Implications of Extracellular Polymeric Substance Matrices of Microbial Habitats Associated with Coastal Aquaculture Systems

Adsorption of Cu(II) from aqueous solution on sulfuric acid treated palygorskite

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