"Struktur Komunitas Makrozoobentos yang Berasosiasi dengan Padang Lamun di Pulau Unggeh Kabupaten Tapanuli Tengah"

Abstract

Bentos have the important role in human live, for example as food source, as one of the food chain organism, and also bioindicator of marine pollution. It’s show seagrass beds have a lot of potential to be useful by the people for rising production of fisheries. The aims of this study were to analyzed relation between density of seagrass beds and community structure of macrozoobentos. This research was done in Mei 2017, used purposive sampling method by taking and observation of seagrass vegetation, community structure of macrozoobentos, and measurement of water quality parameters. Data analysis included of seagrass vegetation, community structure of macrozoobentos, water quality and type of substrate analysis. 3 species of seagrass was found in seagrass beds with density at Station I 133 ind/m 2 , Station II 125 ind/m 2 , Station III 41 ind/m 2 , and Station IV 109 ind/m 2 . 22 species of macrozobentos was found at the research site. Density of macrozoobentosat Station I 6,115 ind/m 2 , Station II 2,785 ind/m 2 , Station III 1,957 ind/m 2 , and Station IV 5,469 ind/m 2 . Analysis regresion was show by equation y = 14,083x + 44,448 with R 2 = 0,4655 and r = 0,6822 relationship betweenseagrassdensity and macrozoobentos density are strong. Which means any increase in seagrass density will affects with the same effect on macrozoobentos densi