Heights and stages of Zostera marina flowering shoots determined from from weekly-biweekly surveys in shallow and deep zones at two sites in Massachusetts, USA in 2019

This dataset includes heights and stages of Zostera marina from weekly-biweekly surveys in the 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).