Seasonal effects on microplankton response to oil perturbation on Mississippi-Alabama shelf, Gulf of Mexico from 2016-01-24 to 2017-03-16

In order to understand the role of biodiversity in increasing resiliency to perturbation, a set of experiments were conducted to examine the response of microplankton to the oil perturbation conditions present in 2016 and 2017. Results of various treatments where cells respond to 1 ppm of water-accommodated fraction (WAF) of crude oil, 1 ppm of chemical-enhanced WAF (using industrial dispersant, CEWAF), dispersant only (Disp, using volume of dispersent without crude) and control conditions, are reported here. All experiments received 1 ppm petrocarbon addition except June 2016 (10 ppm with associated WAF, CEWAF, Disp treatments).

为探究生物多样性在提升生态系统抗扰动恢复力中的作用，本研究开展了一系列实验，以检测微型浮游生物（microplankton）对2016年与2017年存在的石油扰动环境的响应。本文报告了各实验组的实验结果，各组受试生物分别暴露于1ppm浓度的原油水可溶馏分（water-accommodated fraction, WAF）、1ppm浓度的化学强化型水可溶馏分（chemical-enhanced WAF, CEWAF，采用工业分散剂制备）、仅添加分散剂组（Disp，仅加入与CEWAF组等量的分散剂而不含原油）以及对照组环境。除2016年6月的实验外，所有实验均添加了1ppm浓度的石油碳组分；2016年6月的实验中，WAF、CEWAF及Disp三组均添加了10ppm浓度的石油碳组分。