Snail, Melampus bidentatus, length and biomass measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA.

Melampus bidentatus (coffee bean snail) length and biomass measurements for Rowley River tidal creeks associated with long term fertilization experiments, Rowley and Ipswich, MA. The TIDE project aims to simulate eutrophication on a large scale by the addition of NO3- aiming to reach 70μM concentrations from May to September every year during the growing season. This fertilization of the marsh has been going on at Sweeney Creek since the 2004 growing season through 2016 and at Clubhead Creek in 2005 and from 2009 till 2016. Invertebrates were sampled after fertilization ended to look at recovery.本数据集涵盖马萨诸塞州罗利与伊普斯维奇地区罗利河潮汐沟渠内双齿潮螺（Melampus bidentatus，咖啡豆螺）的体长与生物量测量数据，该区域配套开展了长期施肥实验。TIDE项目旨在通过添加硝酸根离子（NO₃⁻）模拟大规模富营养化过程，在每年生长季的5月至9月期间将水体氮浓度提升至70微摩尔每升的目标水平。该盐沼的施肥实验在斯威尼溪（Sweeney Creek）自2004年生长季持续至2016年，在俱乐部头溪（Clubhead Creek）则于2005年及2009年至2016年期间开展。施肥实验结束后，研究人员对无脊椎动物进行采样以观测生态系统恢复情况。