期刊
MARINE POLLUTION BULLETIN
卷 64, 期 11, 页码 2421-2427出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2012.08.004
关键词
Zostera muelleri; Crude oil; Fuel oil; Dispersant; Chlorophyll a fluorescence
资金
- AMSA
- Australian Research Council [LP0561633]
- Australian Research Council [LP0561633] Funding Source: Australian Research Council
To improve the effectiveness of oil spill mitigation, we developed a rapid, logistically simple protocol to detect petrochemical stress on seagrass. Sections of leaf blades from Zostera muelleri subsp. capricorni were exposed to the water accommodated fraction (WAF) of non-dispersed and dispersed Tapis crude oil and fuel oil (IFO-380) for 5 h. Photosynthetic health was monitored by assessing changes in effective quantum yield of photosystem II (Delta F/F-m') and chlorophyll a pigment concentrations. Loss of total petroleum hydrocarbons (TPH) was measured using an oil-in-water fluorometer, whilst GC-MS analyses quantified the hydrocarbon components within each treatment. Few significant differences were detected in the chlorophyll a pigment analyses; however, Delta F/F-m' appeared sensitive to petrochemical exposure. Dispersing both types of oil resulted in a substantial increase in the TPH of the WAF and was generally correlated with a greater physiological impact to the seagrass health, compared with the oil alone. (C) 2012 Elsevier Ltd. All rights reserved.
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