Southern ribbed mussel (Geukensia granosissima) transplant experiment data, northern Barataria Bay, 2017-11-27 to 2018-11-13

The long-term effects of heavy oil exposure on southern ribbed mussel (Geukensia granosissima) facilitation of salt marsh ecosystem function and stability were assessed with a field manipulation experiment conducted at heavily oiled sites (n=5) and reference sites with no visible oiling (n=5) in northern Barataria Bay, Louisiana. In March 2017, replicate 0.25m2 plots of two treatments were established at each site along the marsh edge in areas dominated by Spartina alterniflora: (1) two plots with all G. granosissima removed, and (2) plots with G. granosissima added at a density of 100 individuals/m2. One replicate plot of each treatment was sampled at each site in November of 2017 and 2018.

本研究通过野外操控实验，针对美国路易斯安那州巴拉塔里亚湾北部的重油污点位（n=5）与无可见油污的对照点位（n=5），评估了重质油暴露对南方肋贻贝（Geukensia granosissima）促进盐沼生态系统功能与稳定性的长期影响。2017年3月，于各点位的盐沼边缘互花米草（Spartina alterniflora）优势区域，设置两种处理的重复0.25m²样地：（1）移除全部南方肋贻贝的样地（2组）；（2）以100个/平方米的密度投放南方肋贻贝的样地。分别于2017年与2018年11月，在各点位对每种处理的一处重复样地进行采样。