Petroleum hydrocarbons and limiting nutrients in Macura reptantia, Procambarus clarkii and benthic sediment from Qua Iboe Estuary, Nigeria

被引：18

作者：

Benson N.U. ^{[1
]}

Essien J.P. ^{[2
]}

Ebong G.A. ^{[3
]}

Williams A.B. ^{[1
]}

机构：

[1] Department of Chemistry, College of Science and Technology, Covenant University, Ota

[2] Department of Microbiology, University of Uyo, Uyo, Akwa Ibom State

[3] Department of Chemistry, University of Uyo, Uyo, Akwa Ibom State

来源：

The Environmentalist | 2008年 / 28卷 / 3期

关键词：

Estuary; Nigeria; Petroleum hydrocarbons; Sediment; Shellfishes;

D O I：

10.1007/s10669-007-9140-6

中图分类号：

学科分类号：

摘要：

The levels of total petroleum hydrocarbons in two commonly consumed benthopelagic shellfishes, Macura reptantia and Procambarus clarkii, harvested from benthic sediment of Qua Iboe Estuary were determined using a gas chromatography with flame-ionization detector. Seventy-two (72) samples each of benthic sediment and the shellfishes were collected monthly between June 2003 and February 2004 covering the peak periods of the wet and dry seasons. Concentrations of hydrocarbons were highly variable and ranged between 5.00 and 232.00 μg/g dry weight of benthic sediment, 3.05 and 11.30 μg/g dry weight of M. reptantia, 1.62 and 9.00 μg/g dry weight of P. clarkii. Pearson's correlation analysis of total hydrocarbon concentrations in subtidal sediments with levels in the fauna species yielded positive significant (P < 0.05) correlations in M. reptantia (r = 0.737) and P. clarkii (r = 0.924). This is indicative of a long term and chronic accumulation of hydrocarbons in the estuarine ecosystem, reflecting the potential for exposure of the resident biota and the risk to human health. © 2007 Springer Science+Business Media, LLC.

引用

页码：275 / 282

页数：7

共 40 条

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