Hydrocarbons contamination and microbial degradation in mangrove sediments of the Niger Delta region (Nigeria)

Essien, Joseph P.; Ebong, Godwin Asukwo; Asuquo, J. E.; Olajire, Abass A.

doi:10.1080/02757540.2012.686607

Cited by 28 publications

(15 citation statements)

References 40 publications

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“…Almost all the Bacteroidetes sequences were assigned to the Flavobacteriia class. This class of bacteria is widespread in various aquatic environments, including marine areas and mangrove sediments, and probably plays a major role in the 8 turnover of organic matter, since they are able to degrade natural polymers (e.g., starch, cellulose, or gelatine) [26][27][28]. The Flavobacteriaceae family is one of the most widely expanding families in the Bacteroidetes phylum; more than 50 genera have been described, most of them in recent years [29].…”

Section: Resultsmentioning

confidence: 99%

“…Most of the recently described genera of the Flavobacteriaceae, e.g., Meridianimaribacter, Muricauda, Psychroserpens, Gelidibacter, and Cellulophaga, were isolated from marine environments, demonstrating that this is an important habitat for members of the Flavobacteriia class [30,31,29,28,26]. While there is a little information, some members of the Flavobacteriaceae family have exhibited detectable PAHs degradability and may serve as efficient degraders of crude oil contamination of mangrove ecosystems [27,32,30,11,26]. Both members of this family that were present in the current study, Meridianimaribacter (17%) and Muricauda (12%), have been detected previously in marine samples and mangrove sediments [29,31,28,30].…”

Section: Resultsmentioning

confidence: 99%

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Exploring the microbial diversity in oil-contaminated mangrove sediments using 16S rRNA metagenomics

Ghanbari

Jami

Moghadam

et al. 2019

Preprint

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With an area of 390 hectares, the mangrove forests of Nayband Bay are the widest mangrove communities above 27 degrees latitude in the Persian Gulf. They are the last dense, extensive structures of these ecosystems found in the north-west Indian Ocean. Growing industrial activities near the Nayband Bay and the consequent marine pollution has resulted in damage and threatened different marine habitats in recent years. To date, a comprehensive description of the microbial life in the mangrove ecosystem that has been exposed to oil contamination is lacking. This information could significantly contribute to a better overview of the function and resilience of the ecosystem. This work represents a first effort to better understand the Nayband Bay mangrove microbiology by applying 16S rRNA metagenomics. A total of 65,408 readings from the V3-V4 16S rRNA gene regions were obtained from 24 sediment samples, each measuring 440 bp. Most sequences belonged to members of the Proteobacteria phylum (mainly γ -Proteobacteria); however, members of the Bacteroidetes phylum (mainly Flavobacteriia) were also well represented in the samples. We discovered that the community of this ecosystem strongly exhibit typical structures of oil-contaminated marine environments. This is likely due to the growing industrial activity in the area and its consequent marine polluting effects. The use of practicable and applicable bioremediation protocols for habitat restoration in this valuable area is needed.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Exploring the microbial diversity in oil-contaminated mangrove sediments using 16S rRNA metagenomics

Ghanbari

Jami

Moghadam

et al. 2019

Preprint

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“…Organic amendments are known to increase the abundance of various components of the soil food web, including the soil microbial community, protozoa and microbivorous nematodes [29]. Spent engine oil contains non-aromatic, monoaromatic and an extensive suites of polycyclic aromatic hydrocarbons(PAHs) which can be toxic to organisms [30] and pose significant hazards to human health and the earth's ecology if split. An area of land contaminated with petroleum hydrocarbons may remain totally barren for about ten years after a spill incidence, depending on the quantity of oil in the soil, the soil remediation techniques adopted and many other interacting environmental factors [31].…”

Section: Introductionmentioning

confidence: 99%

Influence of Spent Engine Oil Pollution and Organic Amendment on Soil Physicochemical Properties, Microbial Population and Growth of Capsicum annuum (L.)

Nwachukwu

Azorji²,

Adjero

et al. 2020

ASRJ

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This study investigated the impacts of spent engine oil on the physicochemical properties of soil, soil's microbial population and growth of Capsicum annuum. It covered assessment of different levels of contamination (0, 20, 40, 60 and 80%) in soil; which represents the degree of oil spillage concentration on the growth performance of C. annuum investigated. Percentage germination, seedling height, number of leaves and number of branches decreased as the concentrations of the spent engine oil in soil samples increased and affected soil physicochemical properties. The screening experiment conducted showed that poultry manure improved the physicochemical properties of sandy loam soils contaminated engine oil. The effects of poultry manure as an organic amendment was assessed using pepper (C. annuum) as test crop. All amendment made significant increase in soil organic carbon and calcium content over the polluted soils. Soil acidity increased, soil exchangeable ions decreased. N, P and K were altered in the polluted soils as compared to the controls. There were increased bacterial counts (2.21 – 2.85) and a decrease in fungi population (0.48 - 0.59) in the spent engine oil-contaminated soils compared with the control. The oil reduced germination percentage, depressed growth, reduction in leaf number and plant height of the C. annuum. Therefore the spent engine oil clearly had detrimental effects on soil's physicochemical and biological properties. The oil contributed largely to the extreme acidic nature of the polluted soils. However, maximum increase in plant height, germination percentage, number of leaves and branches were recorded with amendment of the polluted soils with poultry manure. Results show the considerable potential of remediation protocols with poultry manure as a remediating agent for oil spill remediation in the soil samples.

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“…The Qua Iboe estuary (Figure ) is located within 4°30′N and 4°45′N and longitude 7°30′E and 8°45′E as a dominant hydrographical feature in the Niger Delta region of Nigeria . In the estuary, cases of environmental perturbations have been recognised as a result of pollution from nearby oil exploration activities and gas flaring . Its surface water quality assessment has become a major concern for protection of public health and a balanced ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Rainwater Chemistry Within the Vicinity of Qua Iboe Estuary, Nigeria

Akpan¹,

Udosen

Offiong

2018

CLEAN Soil Air Water

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The Qua Iboe River estuary is one of the most studied ecosystems in the Niger Delta of Nigeria given its proximity to intense industrial activities. There have been concerns regarding possible environmental contamination, which has led to several monitoring studies. In this study, some trace metals (Zn, Mn, Cu, Fe, Cr, Pb, Ni, Cd) in rainwater samples collected around the estuary were investigated using standard analytical methods. Rainwater samples were also analysed for physicochemical characteristics. The results obtained revealed varied levels of trace metals and physicochemical parameters across dry and wet seasons. The average abundance of trace metals in rainwater samples from the study locations is in the order: Fe > Zn > Mn > Cr > Cu > Ni > Cd > Pb. In addition, predominant anions in rainwater samples are in the order CnormalO32−>Cl−>NnormalO3−>SnormalO42−>S2–>CN–. Results from statistical analyses reveal the relationships across parameters as well as the discrimination of monitored sites based on the intensity of industrial activities. Principal component analysis reveals that soil dust, sea salt, and fossil fuel combustion are major factors affecting the rainwater chemistry of the study area. The significant amounts of trace metals and the physicochemical parameters quantified in the rainwater samples indicate some level of contamination. However, these levels do not indicate serious pollution problems at present.

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Hydrocarbons contamination and microbial degradation in mangrove sediments of the Niger Delta region (Nigeria)

Cited by 28 publications

References 40 publications

Exploring the microbial diversity in oil-contaminated mangrove sediments using 16S rRNA metagenomics

Exploring the microbial diversity in oil-contaminated mangrove sediments using 16S rRNA metagenomics

Influence of Spent Engine Oil Pollution and Organic Amendment on Soil Physicochemical Properties, Microbial Population and Growth of Capsicum annuum (L.)

Rainwater Chemistry Within the Vicinity of Qua Iboe Estuary, Nigeria

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