Open AccessDensity and Biomass of Seagrass Beds and Its Threats on Lamongan Regency
Author(s) -
Citra Dewi,
Defri Yona,
P. Samuel,
Rizqi Aimmatul Maulidiyah,
Ahdiya Syahrir,
Yandini Eka Putri,
Hilal Rakhmawan,
Maulana Fikri
Publication year - 2020
Publication title -
research journal of life science
Language(s) - English
Resource type - Journals
ISSN - 2355-9926
DOI - 10.21776/ub.rjls.2020.007.03.9
Subject(s) - seagrass , biomass (ecology) , tourism , environmental science , fishery , geography , habitat , ecology , biology , archaeology
This study aimed to determine the density of seagrass species, seagrass biomass, and threats faced by seagrass communities in the Coastal District of Lamongan. The study was conducted from August to November 2019 in three coastal villages of Lamongan Regency, namely Tunggul Village (Station 1), Kranji Village (Station 2), and Banjarwati Village (Station 3). Furthermore, the stages of the study consisted of preparation, data collection on density, threat data, seagrass stand samples, sample processing, and data analysis. The results showed that the total density of seagrass species at Stations 1, 2, and 3 was 160 stands/m2, 172 stands/m2, and 185 stands/m2, respectively. Moreover, the total biomass of seagrass at Stations 1, 2, and 3 was 4633 g/m2, 2136 g/m2, and 9234 g/m2, respectively. In addition to seagrass species, seagrass density values also affected seagrass biomass. As development progresses in Lamongan Regency, it is known that the biggest threat of seagrass communities in the study site is human activity (anthropogenic), especially the anchor ships when anchored and the use of coastal areas as tourist areas. This occasion often cleans up seagrass communities because they are deemed unfit to be enjoyed tourism sector.