The effects of oils and oil components on algae: A review

O'Brien, Patrick Y.; Dixon, Peter S.

doi:10.1080/00071617600650161

Cited by 104 publications

(46 citation statements)

References 69 publications

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“…Most reports are based on qualitative records following oil spills in reef areas; they are often contradictory. Nonetheless, information is now increasing on the effects of oil pollution on algae in temperate and subtropical zones (see reviews by Odum and Johannes, 1975;Zieman, 1975;O'Brien and Dixon, 1976), and much of this is relevant to coral reefs.…”

Section: Reef Floramentioning

confidence: 99%

“…2 fuel oil and found that growth rates of a dinoflagellate, Gymnodinium hallii were most seriously affected. From many laboratory experiments on algae, it is concluded that oils and their components interfere with growth, photosynthesis (reviewed by O'Brien andDixon, 1976 andVandermeulen andAhern, 1976) and synthesis of biologically active compounds, particularly nucleic acids (Davavin et al, 1975).…”

Section: Reef Floramentioning

confidence: 99%

“…Such studies involve primarily three basic directions: (1) bioassay investigations in which the response of an organism to environmental conditions is measured, (2) determination, at the subcellular level, of the actual morphological or physiological basis for the effects observed, and (3) evaluation at the level of populations and communities of changes in patterns of distribution and abundance of affected organisms (O'Brien and Dixon, 1976). The present review focuses on the effects of oil on scleractinian corals and octocorals.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Oil Pollution on Coral Reef Communities

Loya¹,

Rinkevich²

1980

Mar. Ecol. Prog. Ser.

169

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This paper reviews our knowledge of 011-pollution effects on coral-reef communities, concentrating on research done since the last review on this subject by Johannes (1975). The review focusses on crude-oil effects on scleractinian corals and octocorals and summarizes the small amount of work conducted on other reef organisms, as well as on the reef flora. Until 1975 there appeared to be no conclusive evidence that oil floating above the reef damages the corals. Although conflicting reports continue to appear in the literature, growing evidence indicates a detrimental influence of oil pollution on coral-reef communities. Laboratory experiments and long-term field studies in the Red Sea witness detrimental effects of oil pollution on reef corals, such as complete lack of colonization by hermatypic corals in reef areas chronically polluted by oil, decrease in colony viability, damage to the reproductive system of corals (smaller number of breeding colonies, decrease in number of ovaria per polyp, fewer planulae per coral head and premature planulae shedding), lower life expectancy of planulae and abnormal behavioural responses of planulae and corals. Other detrimental effects on reef corals caused by crude oil, mainly reported from the Caribbean, include lower growth rates, direct damage to tissues, thinning of cell layers and disruption of cell structure. damage to tactile stimuli and normal feeding mechanisms, excessive mucus secretion leading to enhanced bacterial growth and eventual coral destruction. All investigators studying effects of crude-oil emulcifiers on reef areas polluted by oil conclude that these enhance the damage; hence mechanical oil removal is recommended. There IS urgent need for more field and laboratory research on long-term oil-pollution effects on coral-reef communities. Suggestions are made as to the type of studies required for a better understanding of the problem.

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Section: Reef Floramentioning

confidence: 99%

Section: Reef Floramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Oil Pollution on Coral Reef Communities

Loya¹,

Rinkevich²

1980

Mar. Ecol. Prog. Ser.

169

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“…Some of the accidental incidents with tankers and leakage clearly demonstrated that oil contamination in an environmentally or economically sensitive area which could cause irreparable damage (Hassan 1989;Rosario et al 2003;Agota et al 2012;Olumide et al 2011). It is estimated that 1.7 to 8.8 million metric tons of oil and grease contaminants are released into the world's water bodies every year (National academy of sciences 1985; Cooney 1984), of which [90 % is directly related to human activities (O'Brien and Peter 1976). It is also estimated that about 30 % of the oil and grease enters freshwater systems (Cooney 1984;Gennaro 2004;Brubaker 1993;Stolzenbach et al 1977) and they could also affect the water quality by forming a layer of floating film, which causes a decrease in the gas exchange of the air and water body (Lepo et al 2003;Adeola et al 2012;Willard et al 1995;Savita and Suchi 2007).…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic treatment of oil and grease spills in wastewater using coated N-doped TiO2 polyscales under sunlight as an alternative driving energy

Shivaraju

Muzakkira

Shahmoradi

2016

Int. J. Environ. Sci. Technol.

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To enhance the overall efficiency of oil and grease removal in wastewater coated N-doped TiO 2 photocatalytic polyscales were fabricated through sol-gel technique. The materials fabricated were characterized using powder X-ray diffraction, Fourier transmission infrared spectroscopy, scanning electron microscopy, and UV-Vis spectroscopy. In order to enhance degradation efficiency of organic pollutant under natural sun light, shifting of absorption range of TiO 2 to visible spectrum, various modifications such as surface modification and size optimization were carried out by doping of nitrogen under solgel processes. To ease recovery of suspended catalysts from aqueous media, the coated N-doped TiO 2 were prepared by decorating photocatalytic particles onto suitable substrates. N-doped TiO 2 polyscales with desired functionalities were coated onto the spherical supporting substrates using a binding agent. The photocatalytic treatment studies clearly indicated the considerable level of the oil and grease and other organic pollutants removal from wastewater (up to 85-90 % ± 2) using coated N-doped TiO 2 under natural sunlight as an alternative driving energy source. Removal of oil and grease along with other organic pollutants in wastewater using coated N-doped TiO 2 polyscales is a versatile, economical, and environmental friendly technique due to the ease of handling and recovery, utilization of natural sunlight which is renewable energy source.

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“…S druge strane, utvrđeno je da alge i protozoe nemaju značajnu ulogu u degradaciji ugljovodonika. 86,87 Mikroorganizmi koji su sposobni da razlažu prirodno prisutne ugljovodinike u životnoj sredini, mogu da razlažu i ugljovodonike koji potiču od naftnog zagađivača. Bakterije imaju najvažniju ulogu u degradaciji naftnog zagađivača i deluju kao primarni degraderi ugljovodonika koji potiču od prosute nafte.…”

Section: Mikroorganizmi -Razlagači Ugljovodonika Nafteunclassified

Influence of bioremediation conditions on biodegradation of saturated and aromatic hydrocarbons in oil-type pollutants

Novakovic¹

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The effects of oils and oil components on algae: A review

Cited by 104 publications

References 69 publications

Effects of Oil Pollution on Coral Reef Communities

Effects of Oil Pollution on Coral Reef Communities

Photocatalytic treatment of oil and grease spills in wastewater using coated N-doped TiO2 polyscales under sunlight as an alternative driving energy

Influence of bioremediation conditions on biodegradation of saturated and aromatic hydrocarbons in oil-type pollutants

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