Hubungan Faktor Biotik dan Abiotik Terhadap Keanekaragaman Makrobentos di Hutan Mangrove Kabupaten Lombok Barat

High human activity around the coastal area will affect the mangrove ecosystem and the biota such
as macrobenthos. Benthic diversity can reflect conditions of mangrove ecosystem, that slow growth
and sensitive to environmental changes. This study aims to determine the influence of biotic and
abiotic environments on the macrobenthos in Cendi Manik Village, Sekotong District, West Lombok
Regency, West Nusa Tenggara. Data collection of macrobenthos, biotic and abiotic environments
in natural and rehabilitation mangrove, then the diversity species of macrobenthos with biotic and
abiotic environmental variables were analyzed multiple regression. The most dominant vegetations
are Rhizophora mucronata Lam and Avicennia marina Forssk. The diversity index for macrobenthos
is low (H’ 1,207) in natural and rehabilitation mangrove. Macrobenthos between two location have
high similarity with 84,6%. The result of multiple regression test showed that most influencing of
macrobenthos were mud thickness and brightness.