Research has been conducted in Kepenghuluan Melayu Besar Subdistrict Tanah Putih Tanjung Melawan in January to February 2018. The aim of this research was to analyze the indicator of the presence of Aedes aegypti mosquito larvae on 3M Plus movement in Kepenghuluan Melayu Besar Subdistrict Tanah Putih Tanjung Melawan and analyze the effect of 3M Plus movements and impacts socio-economic on the existence of Aedes aegypti mosquito larvae in Kepenghuluan Melayu Besar Subdistrict Tanah Putih Tanjung Melawan. The results showed that 3M Plus movement affected to decrease larva population in an area. The impact of the 3M Plus movement was viewed from an economic aspect, namely the costs incurred was cheaper than before the 3M Plus movement. The social impact gained from 3M's movement Plus the empathy and feeling of mutual cooperation in the community, the use of recycled goods increases the aesthetic value because the use of used goods to be used as crafts, feeling safe and comfortable and not panicking when there is an attack of DHF and the emergence of clean living behavior and healthy in the community.

The degradation of mangrove ecosystems in Bengkalis Regency is caused either one by mangrove ecosystems management that are still not optimal. The research of institutional analysis of mangrove ecosystem management in Kelapa Pati Village was conducted in November 2019 in the mangrove ecosystem of Kelapa Pati Village, Bengkalis District, Bengkalis Regency. The assessing of institutional  role about mangrove ecosystems management in Kelapa Pati Village was carried out based on in-depth interviews with informants in the form of selected stakeholders. Institutional analysis of mangrove ecosystems shows that the mangrove ecosystem institutions in Kelapa Pati Village are grouped into: Key players (Managers, Village Heads, Regents, Dinas Lingkungan Hidup dan Kehutanan Provinsi, Dinas Lingkungan Hidup Kabupaten), context setters (DPRD), crowds (Dinas PU , BAPPEDA, Dinas Perikanan, NGO, and University); and subjects (community and community leaders).