STRUKTUR KOMUNITAS LAMUN DI DESA DARUNU KECAMATAN WORI KABUPATEN MINAHASA UTARA

Abstract

Seagrass meadows have ecological roles such as habitats of other organisms, as primary producers in shallow waters, as substrates stabilizer, as well as carbon storage. The seagrass meadow community structure and condition of Darunu Village Waters has never been reported. The study purposes are to find out and analyze seagrass species abundance, community structure and diversity index. Data collection of seagrass community structure was taken using the line transect method. Three 100 m line transects were laid from the coast perpendicular to the sea. The distance between each transect is 50m . Then the data was taken using a  50 x 50 cm² quadrant. The quadrat was placed from 0 m to 100m and the distance between each quadrat was 10 meters. This study found 6 types of seagrasses, namely Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, Halodule pinifilia, and Syringodium isoetifolium. The diversity index of seagrass species at the research site was moderate  (1 ≤ H' ≤ 3 diversity of medium species).

Keywords: Darunu Village, Community Structure, Padang Lamun.