| dc.description.abstract | The research aim were to know covered
percentage and density of seagrass at Sitardas Village, Tapanuli Tengah District.
Seagrass observations using transect quadratic method. In this research, found 4
species of seagrass consist of Enhalus acoroides, Cymodocea serrulata,
Cymodocea rotundata and Halophila ovalis. Physical-chemical parameter of
waters obtained temperature ranges 28-29°C, water depth ranges 50-95 cm,
salinity ranges 27-29 ppt, pH ranges 7.8-8.0, speed of water flow ranges 0.10-0.70
m/s, DO ranges 5.1-6.4 mg/l and water transparency was 100%. Type of
substrates obtained were loam sandy, silty loam and sandy loam. The mean
seagrass covered percentage was 5.25%, Seagrass covered percentage per species
obtained Enhalus acoroides was 4.99%, Cymodocea serrulata was 0.19%,
Cymodocea rotundata was 0.06% and Halophila ovalis was 0%. Seagrass density
of each spesies were Enhalus acoroides 26 individual/m², Cymodocea serrulata 5
individual/m², Cymodocea rotundata 3 individual/m² and Halophila ovalis 2
individual/m². Dispersial pattern seagrass Enhalus acoroides and Cymodocea
serrulata was uniform while Cymodocea rotundata and Halophila ovalis was
clumped. | en_US |
