Distribution and abundance of oil-degrading bacteria in seawater of the Yellow Sea and Bohai Sea, China

Shi, Haolei; Gao, Wei; Zheng, Yunchao; Yang, Lin; Han, Bin; Zhang, Yanchao; Zheng, Li

doi:10.1016/j.scitotenv.2023.166038

Cited by 6 publications

(2 citation statements)

References 46 publications

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“…The uptake of N and P, reduction in chemical oxygen demand (COD), and degradation of petroleum hydrocarbons by seawater [31] form the basis of water purification in the study area. For the uptake of N and P by seawater, the C/N and C/P ratios are approximately 5.68 and 41.03, respectively [32].…”

Section: Calculating Marine Primary Productivity Based On the Vgpm Modelmentioning

confidence: 99%

Integrated Terrestrial and Marine Ecosystem Services Valuation and Result Variation Trends: A Case Study of Jiangsu Province, China

Li,

Ren,

et al. 2023

Land

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Quantitative ecosystem services valuation (ESV) is the key to effective environmental protection and ecosystem restoration. Studies have focused on terrestrial ecosystems and are mainly based on static analyses, excluding marine ecosystem service values and their variability. In this study, we comprehensively evaluated terrestrial and offshore ecosystem service values in Jiangsu Province in 2010 and 2018 using a table of unit area value equivalence factors and a vertically generalized production model (VGPM) to estimate marine primary productivity. The results showed that the terrestrial ESV in Jiangsu Province was 322.740 and 477.798 billion yuan in 2010 and 2018, respectively. The ESV of hydrological regulation in water areas was the highest, whereas that of unutilized land was the lowest. The ESV in different prefectural-level cities exhibited significant spatial heterogeneity and were highly correlated with the proportion, protection, and rational utilization of urban water areas. The offshore ESV in Jiangsu Province was 426.011 and 460.438 billion yuan in 2010 and 2018, respectively; the farther from land, the lower the ecosystem service value. The value of ecological regulation services is the dominant factor in the comprehensive services of terrestrial and offshore ecosystems in Jiangsu Province (accounting for 80% of ESV). From 2010 to 2018, the overall terrestrial and offshore ESV in Jiangsu Province rose by 188.901 billion yuan, increasing by 25.28% from 2010. In future, boundaries of development in production activities should be controlled, the protection and restoration of the ecological environment promoted, and regulatory functions and cultural services of ecosystems rationally exploited.

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Section: Calculating Marine Primary Productivity Based On the Vgpm Modelmentioning

confidence: 99%

Integrated Terrestrial and Marine Ecosystem Services Valuation and Result Variation Trends: A Case Study of Jiangsu Province, China

Li,

Ren,

et al. 2023

Land

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“…They are considered to originate primarily from phytol during diagenesis [39,40]. Shi et al showed that under oxidizing conditions, phytol may be degraded preferably into pristane; conversely, this alteration is thought to result in a predominance of phytane over pristane under reducing conditions [41]. On the basis of the reaction pathways, a Pr/Ph ratio of >1 would represent an oxidizing condition, whereas a Pr/Ph ratio of < 1 is an indication of a reducing environment [42,43].…”

Section: Introductionmentioning

confidence: 99%

Molecular Fingerprinting of the Biodegradation of Petroleum Organic Pollutants in Groundwater and under Site-Specific Environmental Impacts

Yang,

Yang

et al. 2024

Water

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A quantitative and qualitative assessment using molecular markers derived from compound-specific indices for indicating groundwater impacted by petroleum spills in an oil field was recently undertaken and demonstrated serious contamination, with both high total petroleum hydrocarbons (TPH) (3.68–7.32 mg/L) and hazardous compounds in the groundwater. A petroleum source was identified, and the analysis revealed a decreasing trend of fresh petroleum input, along with groundwater advection and an increasing trend of biodegradation potential at locations farther from the source. This was confirmed via microbial analysis with both biodegrading microorganisms and diversity indices (Shannon, Simpson, and Pielou) and the principal component analysis (PCA) modeling approach, which classified the field samples into three types according to the distribution correlations between different organic compounds. Biodegradation was believed to be the dominant sink of hydrocarbons due to the increasing Pr/C17 and Ph/C18 values with seasonal changes. Raised temperatures activated the microbial degradation process; specifically, low-weight hydrocarbons degraded more rapidly than high-weight hydrocarbons, resulting in the accumulation of an unresolved complex mixture of bioproducts at locations that were farther away. Spatially, the Pr/C17 and Ph/C18 values increased from the upstream to the downstream areas, showing substantial biodegradation. The relationships between the molecular markers and chemical indices were quantified via canonical correlation analysis (CCA) to visually explain the interactive reaction processes. It was also demonstrated that the biodegradation of petroleum organics can be characterized by the consumption of dissolved oxygen and a decreasing Pr/Ph ratio, due to system reduction. These results demonstrate that compound-specific molecular markers, coupled with biochemical parameters, can effectively support a better understanding and effective fingerprinting of the fate and transport of petroleum organic contaminants, thus offering valuable technical support for a cost-effective remediation strategy.

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Floristic changes and environmental drivers of soil fungi and archaea in different salt-tolerant plant communities in the intertidal habitat of coastal wetlands

Gao,

Wang,

Kong

et al. 2024

Environ Geochem Health

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Distribution and abundance of oil-degrading bacteria in seawater of the Yellow Sea and Bohai Sea, China

Cited by 6 publications

References 46 publications

Integrated Terrestrial and Marine Ecosystem Services Valuation and Result Variation Trends: A Case Study of Jiangsu Province, China

Integrated Terrestrial and Marine Ecosystem Services Valuation and Result Variation Trends: A Case Study of Jiangsu Province, China

Molecular Fingerprinting of the Biodegradation of Petroleum Organic Pollutants in Groundwater and under Site-Specific Environmental Impacts

Floristic changes and environmental drivers of soil fungi and archaea in different salt-tolerant plant communities in the intertidal habitat of coastal wetlands

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