Distribution and healthy status of seagrass bed in Lamongan coastal areaCitra Satrya Utama Dewi, Defri Yona, Pratama Diffi Samuel, Rizqi Aimmatul Maulidiyah, Ahdiya Syahrir, Yandini Eka Putri, Hilal Rakhmawan and Maulana FikriE3S Web Conf., 153 (2020) 01003DOI: https://doi.org/10.1051/e3sconf/202015301003