Influence of salinity on metal toxicity to Ulva pertusa

Oh, Jeong-ju; Choi, Eun‐Mi; Han, Young Seok; Yoon, Jeong-Hyun; Park, Areum; Jin, Kyosun; Lee, Ju-Wook; Choi, Hoon; Kim, Sun‐Jin; Brown, Murray T.; Han, Taejun

doi:10.1007/s13530-011-0107-0

Cited by 17 publications

(6 citation statements)

References 21 publications

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“…Due to their poor biodegradability, easy bioaccumulation, and high toxicity, heavy metals discharged into the sea from different sources may pose serious threats to marine organisms. For example, the spore release of Ulva pertusa is inhibited by exposure to Cu, Cd, Pb, and Zn [ 1 ]; Cd arrests the molting of the estuarine crab Chasmagnathus granulata by preventing the normal peaking of the ecdysteroids needed for molting [ 2 ]; disorganization of epithelial cells is observed in the gills of Arctic charr ( Salvelinus alpinus ) after exposure to Hg (15 μg/L) for 12 h [ 3 ]; DNA damage is induced in marine bivalve mollusk ( Mytilus edulis ) by Cu exposure at a low concentration of 18 μg/L [ 4 ]; and the embryo development of Ruditapes decussatus is observed to be inhibited when the median effective concentration (EC 50 ) values are 4.2 μg/L for Hg and 9.1 μg/L for Cu [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Probabilistic ecological risk assessment of heavy metals in western Laizhou Bay, Shandong Province, China

Chi

Tian

et al. 2019

PLoS ONE

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Considering the serious land-based pollution and the weak water exchange ability of western Laizhou Bay, it is essential to conduct an ecological risk assessment of the pollutants in this area. In this study, the ecological risk caused by heavy metals deposited in the surface sediments and those resuspended in the seawater of western Laizhou Bay was evaluated using probabilistic approaches. First, the concentrations of seven heavy metals, namely As, Cd, Cr, Cu, Hg, Pb, and Zn, in the surface sediments and seawater of western Laizhou Bay were detected during the spring and autumn of 2016. The concentrations of As, Cd, Cr, Cu, and Pb were found to be at levels comparable to those in the other global coastal systems, while those of Hg and Zn were lower than those in other coastal areas. Next, an ecological risk assessment of heavy metals in the surface sediments was performed using a typical potential ecological risk index and refined by using a Monte Carlo simulation. The results suggested low risk for the heavy metals detected in the sediments of western Laizhou Bay, with the exception of Hg in September 2016, which showed a probability (0.03%) of moderate risk. Meanwhile, the aquatic ecological risk assessment of the heavy metals was performed by applying a combination of hazard quotient (HQ) and joint probability curve. While the ecological risk of Cd, Hg, and Pb was found to be acceptable, the HQs for Cr, Cu, and Zn were greater than 1, and the overall risk probability of their adverse effects was higher than 0.05, suggesting certain ecological risk. Specifically, in the case of As, the overall risk probability was lower than 0.05, suggesting that its ecological risk was acceptable, although its HQ was greater than 1. Thus, by applying the probabilistic approaches, the ecological risk of the heavy metals in western Laizhou Bay was better characterized in this study, avoiding both overestimation and underestimation of ecological risk.

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Section: Introductionmentioning

confidence: 99%

Probabilistic ecological risk assessment of heavy metals in western Laizhou Bay, Shandong Province, China

Chi

Tian

et al. 2019

PLoS ONE

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“…Therefore, the toxicity limits of U. pertusa determined in normal marine conditions may not reflect those prevailing in freshwaters. In a recent study, we have found that U. pertusa is likely to be more susceptible to low levels of pollution in estuaries compared with coastal waters (Oh et al, 2012). If there is any sign of toxicity in salinity-adjusted water samples, it would indicate that the original freshwater samples would have been more toxic, thus making Ulva pertusa an early warning indicator of freshwater pollution.…”

Section: Resultsmentioning

confidence: 97%

Application of the Ulva pertusa bioassay for a toxicity identification evaluation and reduction of effluent from a wastewater treatment plant

Kim

Han²,

Kim

et al. 2015

Front. Environ. Sci.

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A toxicity identification evaluation (TIE) based on Ulva pertusa spore release was conducted in 3 phases for the identification of the major toxicants in effluent from a wastewater treatment plant (WTP) and the receiving water in an adjacent stream. The toxicity of the final effluent (FE), as compared with raw wastewater, and primary and secondary effluent, showed a greater change over 12-monthly sampling events and appeared to have impacts on the toxicity of the downstream water with a significant correlation (r 2 = 0.89, p < 0.01). In Phase I, toxicity characterization indicated that cations were likely to be the responsible toxicants for the FE. In Phase II, cations such as Cu, Ni, and Zn were found in the FE at higher concentrations than the EC 50 concentrations determined for the standard corresponding metals. When the concentrations of each metal in the FE samples were plotted against the respective toxicity units, only zinc showed a statistically significant correlation with toxicity (r 2 = 0.86, p < 0.01). In Phase III, using spiking and mass balance approaches, it was confirmed that Zn was the major toxicant in the effluent from the WTP. Following a change in the Fenton reagent used, to one with a lower Zn content, the toxicity of the FE greatly decreased in subsequent months. The TIE developed here enabled the toxicity of FEs of the WTP to be tracked and for Zn, originating from a reagent used for Fenton treatment, to be successfully identified as the key toxicant. The TIE method based on U. pertusa demonstrated utility as a low cost and simple tool to identify the risk factors for industrial effluents and provided information on regulatory control and management.

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“…The macroalgae Ulva lactuca (Ulvaceae, Chlorophyta), commonly known as sea lettuce, is ubiquitous in coastal benthic communities around the world, in marine and estuarine environments [31,32], having a highly charged cell wall composed of the mucopolysaccharide ulvan, which allows the adsorption of pollutants [33]. Since this species responds directly to environmental pollution, it has been used in ecotoxicology bioassays (e.g., Ul-vaTox) for metals (e.g., silver, arsenic, cadmium, cobalt, chromium, copper, iron, mercury, manganese, nickel, lead, and zinc); disinfectants (e.g., formalin); fossil fuels (e.g., diesel); medicines (e.g., thiazolidinediones); fungicides (e.g., tributyltin oxide); and herbicides (e.g., glyphosate) [34][35][36][37][38][39][40].…”

Section: Introductionmentioning

confidence: 99%

Ecotoxicological Effects of the Anionic Surfactant Sodium Dodecyl Sulfate (SDS) in Two Marine Primary Producers: Phaeodactylum tricornutum and Ulva lactuca

Carvalho

Feijão

Matos

et al. 2022

Toxics

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Sodium Dodecyl Sulfate (SDS) is an anionic surfactant, extensively used in detergents, household and personal care products, as well as in industrial processes. The present study aimed to disclose the potential toxicological effects of SDS exposure under environmentally relevant concentrations (0, 0.1, 1, 3, and 10 mg L−1) on the physiology and biochemistry (photosynthesis, pigment, and lipid composition, antioxidative systems, and energy balance) of two marine autotrophs: the diatom Phaeodactylum tricornutum and the macroalgae Ulva lactuca. A growth rate (GR) reduction in P. tricornutum was observed with a classic dose-response effect towards the highest applied concentration, while a GR increase occurred in U. lactuca. Regarding photochemistry, the decrease in the fluorescence of the OJIP curves and laser-induced fluorescence allowed a better separation between SDS treatments in U. lactuca compared with P. tricornutum. Although all pigments significantly decreased in U. lactuca at the highest concentrations (except for antheraxanthin), no significant variations occurred in P. tricornutum. On the other hand, changes in fatty acid content were observed in P. tricornutum but not in U. lactuca. In terms of classical biomarker assessment, a dose-effect relationship of individual biomarkers versus SDS dose applied; U. lactuca displayed a higher number of biomarker candidates, including those in distinct metabolic pathways, increasing its usefulness for ecotoxicological applications. By evaluating the potential application of optical and biochemical traits, it was evident that the fatty acid profiles of the different exposure groups are excellent candidates in P. tricornutum, concomitant with the characteristics of this anionic surfactant. On the other hand, the results presented by laser-induced fluorescence and some parameters of PAM fluorometry in U. lactuca may be an advantage in the field, offering non-invasive, fast, easy-to-use, high-throughput screening techniques as excellent tools for ecotoxicology assessment.

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Influence of salinity on metal toxicity to Ulva pertusa

Cited by 17 publications

References 21 publications

Probabilistic ecological risk assessment of heavy metals in western Laizhou Bay, Shandong Province, China

Probabilistic ecological risk assessment of heavy metals in western Laizhou Bay, Shandong Province, China

Application of the Ulva pertusa bioassay for a toxicity identification evaluation and reduction of effluent from a wastewater treatment plant

Ecotoxicological Effects of the Anionic Surfactant Sodium Dodecyl Sulfate (SDS) in Two Marine Primary Producers: Phaeodactylum tricornutum and Ulva lactuca

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