Distribution and healthy status of seagrass bed in Lamongan coastal area Citra Satrya Utama Dewi, Defri Yona, Pratama Diffi Samuel, Rizqi Aimmatul Maulidiyah, Ahdiya Syahrir, Yandini Eka Putri, Hilal Rakhmawan and Maulana Fikri E3S Web Conf., 153 (2020) 01003 Published online: 17 February 2020 DOI: 10.1051/e3sconf/202015301003