PIE LTER herbivory measurement associated with marsh sites used in space for time sea level rise study, Rowley, MA.

This dataset contains aggregated observations of predation and herbivory on tethered bait in each quadrat of sites around the Rowley River and the south side of Sawyer Island at the Plum Island LTER. Measurements consist of the consumption status of tethered squid or kelp pieces as a measure of energy transfer between trophic levels. Pieces were left in the field for five days and observers recorded the status of bait over time as either entirely missing, partially consumed, having scrape marks, or fully intact. These measurements can be used to calculate consumption rates (i.e. energy transfer) over time. Notes include fields discussing any additional observations - e.g., if a stick was found missing.

本数据集包含普拉姆岛长期生态研究站（Plum Island LTER）罗利河周边及索耶岛南侧样地内各样方（quadrat）的系留诱饵捕食与植食作用汇总观测数据。观测以系留鱿鱼或海带块的消耗状态为指标，用以表征营养级间的能量传递过程。实验诱饵块被置于野外为期5天，观测人员会随时间记录诱饵状态，状态分为完全缺失、部分被取食、带有刮痕及完好无损四类。此类观测数据可用于计算不同时段的取食速率（即能量传递量）。数据集附带备注字段，用于记录额外观测情况——例如发现固定用细杆缺失的情形。