| dc.description.abstract | Activities the continuous in mangrove areas Bagan Deli Village district
of Medan Belawan resulted in a decline in water quality, causing changes in the
ecological condition of the biota, especially macrozoobenthos. This research aims
to determine the community structure of macrozoobenthos and water quality
based on Abundance and Comparison (ABC) curve. This research was conducted
in the mangrove area of the village of Bagan Deli Medan District Belawan from
March until April 2016. The Sampling was done by purposive random sampling
method at three stations. Macrozoobenthos and water sampling was caarried out
for 1.5 months. Results of this research was found 13 species of macrozoobenthos
namely Telescopium telescopium, Turritella terebra, Nassarius reeveanus,
Cerithidea cingulata, Chicoreus capucinus, Nerita lineata, Cerithidea obtusa,
Littoraria melanostoma, Cassidula aurisfelis, Natica Tigrina, Uca vocans and
Uca rosea. Density was from 0 to 9 ind / m2. Diversity index was ranged from
1,79 to 2,09 and the level of diversity rated high. Uniformity index was ranged
from 0,7 to 0,82 and dominance index was ranged from 0,15 to 0,2. Based on the
ABC curve that the mangrove area of the village of Bagan Deli condition in the
medium polluted category | en_US |
