PIE LTER abundances of macroalgae and Ruppia maritima in six high marsh ponds, Rowley, MA, during the summer of 2016.

We characterized the abundance of macroalgae and submerged grass in six ponds in three regions of the PIE-LTER marshes during summer 2016. Macroalgal communiteis were dominated by Ulva while Ruppia maritima was the only submerged grass present. Our goal was to determine whether macrophyte abundances varied predictably with pond dimensions (e.g., surface area, volume) or geographic attributes (e.g., elevation, distance from upland, marsh region). Samples were collected from several locations in each pond in order to capture spatial heterogeneity.

2016年夏季，我们对PIE-LTER滨海湿地三个区域内的6处池塘中的大型藻类和沉水草本植物丰度开展了表征分析。大型藻类群落以石莼属（Ulva）为优势类群，调查区域内仅存在川蔓藻（Ruppia maritima）这一种沉水草本植物。本研究旨在明确大型水生植物（macrophyte）丰度是否会随池塘形态参数（如表面积、容积）或地理属性（如高程、距高地距离、湿地区域）呈现可预测的变化规律。为捕捉空间异质性，我们在每个池塘的多个采样点位收集了实验样本。