The effects of diesel oil and oil dispersants on growth, photosynthesis, and respiration ofChlorella salina

Chan, Kwong‐Yu; Chiu, Sau Ying

doi:10.1007/bf01055410

Cited by 40 publications

(16 citation statements)

References 29 publications

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“…Studies examining the toxicity of crude oil and dispersants (alone and in combination) on phytoplankton populations have demonstrated varied results, from population suppression to increased productivity (Boney 1970;Heldal et al 1978;Baker et al 1980;Bratbak et al 1982;Chan and Chiu 1985;Harrison et al 1986;Chen et al 1988). Variables such as application rate, temperature, and salinity, as well as the type of oil, formulation of dispersant, and species of algae are critical factors in the outcome of an experiment.…”

Section: Discussionmentioning

confidence: 96%

Influence of Dispersants on the Bioavailability of Naphthalene from the Water-Accommodated Fraction Crude Oil to the Golden-Brown Algae, Isochrysis galbana

Wolfe

Schwartz

Singaram

et al. 1998

Archives of Environmental Contamination and Toxicology

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The golden-brown algae Isochrysis galbana, a primary producer, was used to determine the influence of the chemical dispersing agent, Corexit 9527((R)), on the bioavailability of naphthalene. Cells were exposed to laboratory preparations of either the water-accommodated fraction (WAF) of Prudhoe Bay crude oil (PBCO) or a dispersed oil (DO) mixture of PBCO and Corexit 9527 spiked with [U-14C]naphthalene. Uptake was determined by the amount of algae-associated [14C]. High-pressure liquid chromatography (HPLC) co-chromatography was used to fractionate and identify metabolic products. A 24-h bioaccumulation factor (BAF) was calculated in the absence of steady state. The presence of Corexit 9527, had significant influence (p = 0.001) on the uptake of naphthalene, but no significant effect on the 24-h BAF (BAF: 168 and 180 from WAF and DO, respectively), or metabolic fate of naphthalene in I. galbana. Results of this research indicate that dispersants have the potential to increase organismal exposure to certain petroleum hydrocarbons without increasing their aqueous concentration.

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Section: Discussionmentioning

confidence: 96%

Influence of Dispersants on the Bioavailability of Naphthalene from the Water-Accommodated Fraction Crude Oil to the Golden-Brown Algae, Isochrysis galbana

Wolfe

Schwartz

Singaram

et al. 1998

Archives of Environmental Contamination and Toxicology

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“…In some case studies, growth rate has been shown as a more sensitive end point parameter than photosynthetic activity [40], whereas in others Chl-α-content and carbon uptake were more sensitive parameters for assessing hydrocarbon toxicity than cell counting [39]. In our knowledge, the dominant effect observed on photosynthetic activity after exposure to petroleum hydrocarbons is inhibition, while stimulation effects at low exposure levels of the toxicants have been also reported [37,41,64].…”

Section: Oils Dispersants and Dispersed Oilsmentioning

confidence: 90%

Effects on the Photosynthetic Activity of Algae after Exposure to Various Organic and Inorganic Pollutants: Review

Petsas¹,

Vagi²

2017

Chlorophyll

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Algal studies remain necessary for risk assessment and their utility in ecotoxicology is the evaluation of lethal and sub-lethal toxic effects of potential toxicants on inhabitants of several ecosystems. Effects on algal photosynthetic apparatus caused by various chemical species have been extensively studied. The present chapter summarizes the published data concerning the toxicity of various organic and inorganic pollutants such as oils, pesticides, antifoulants and metals on photosynthesis of aquatic primary producers. Biochemical mode of action resulting in the disruption of photosynthesis depends on the chemical's nature and the characteristics of the exposed microorganism. Observed differences in response and sensitivity by different species to the same toxicant were attributed to several algal characteristics including photosynthetic capacity, pigment type, cellular lipid and protein content, and cell size. Single species bioassays either for one chemical alone or in mixture have been well reported and tolerance of both marine and freshwater water-column phytoplaktonic species has been examined. Adequate published information on multispecies tests (communities) in laboratory and field studies exists. However, risk assessment on photosynthesis of microbenthic periphyton is inadequate, though it is essential especially for hydrophobic organic molecules. Further studies are required to evaluate the adverse effects of metabolites on aquatic microalgae.

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“…We considered it important to look at interactive effects because dispersants and cleaners can have worse effects when used in oil spill cleanups than the hydrocarbons alone (Griffiths et al, 1980;Chan and Chiu, 1985). Cultch was immersed in Louisiana sweet crude in the laboratory as above, and a solution of a commercially-available cleaner, COREXIT 9580, was applied as a spray when trays were deployed.…”

Section: Experiments 2 -Interactive Effects Of Oil and Cleanermentioning

confidence: 99%

“…In comparison, less is known about the effects of hydrocarbons on invertebrates and fish that rely on oyster reefs for shelter. A few studies have however investigated the effects of cleaners or dispersants, that are often applied to disperse oil spills, on benthic macrofauna in general in marine systems (Griffiths et al, 1980;Chan and Chiu, 1985).…”

Section: Introductionmentioning

confidence: 99%

Relative importance of hydrocarbon pollutants, salinity and tidal height in colonization of oyster reefs

Hulathduwa

Brown

2006

Marine Environmental Research

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The effects of diesel oil and oil dispersants on growth, photosynthesis, and respiration ofChlorella salina

Cited by 40 publications

References 29 publications

Influence of Dispersants on the Bioavailability of Naphthalene from the Water-Accommodated Fraction Crude Oil to the Golden-Brown Algae, Isochrysis galbana

Influence of Dispersants on the Bioavailability of Naphthalene from the Water-Accommodated Fraction Crude Oil to the Golden-Brown Algae, Isochrysis galbana

Effects on the Photosynthetic Activity of Algae after Exposure to Various Organic and Inorganic Pollutants: Review

Relative importance of hydrocarbon pollutants, salinity and tidal height in colonization of oyster reefs

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