Vegetative shoot heights of Zostera marina determined from from weekly-biweekly surveys in shallow and deep zones at two sites in Massachusetts, USA in 2019

This dataset includes vegetative shoot heights of Zostera marina determined from from weekly-biweekly surveys in shallow and deep zones at two sites in Massachusetts, USA in 2019. Eleven surveys of two different eelgrass beds were conducted every 1-2 weeks starting June 4th and ending August 27th during the summer of 2019. The two sites were West Beach in Beverly (N 42.55921, W 70.80578) and Curlew Beach in Nahant (N 42.42009, W 70.91553).本数据集涵盖2019年于美国马萨诸塞州两个站点的浅、深水区开展的周度至双周度调查所测得的大叶藻（Zostera marina）营养枝高度数据。2019年夏季，研究人员于6月4日启动调查、至8月27日结束，期间每隔1至2周开展一次采样，累计完成11次调查，覆盖两处不同的鳗草床。两处调查站点分别为贝弗利西滩（West Beach, Beverly）（北纬42.55921，西经70.80578）与纳汉特杓鹬滩（Curlew Beach, Nahant）（北纬42.42009，西经70.91553）。