The adaptability of Aedes aegypti (Linnaeus) larvae coastal and inland ecosystems in South Sulawesi Arini Ratnasari1,b), Nur Rahma2, Arif Rahman Jabal3, Isra Wahid2,a)
1Faculty of Medicine, Postgraduate School, Hasanuddin University Jl. Perintis Kemerdekaan Km.10 Tamalanrea, Makassar 90245, Indonesia
2 Faculty of Medicine, Hasanuddin University Jl. Perintis Kemerdekaan Km.10 Tamalanrea, Makassar 90245, Indonesia
3Dept. Parasitologi, Faculty of Medicine, Palangkaraya University Jl. Yos Sudarso, Jekan Raya, Kalimantan Tengah 74874, Indonesia
Abstract
Aedes aegypti mosquito is the cause of vector-borne disease. This study aims to look at habitat characteristics, survival, tolerant salinity, and oviposition two ecosystems. This research is an exploratory and experimental study. The study site consisted of coastal and inland area in Makassar City and Maros Regency. Larvae collection carried out at distances of 100 m, 500 m, 1 km and 2 km from the coastline. The collected larvae identified, counted and accompanied pH and salinity measurements. The larvae were breeding to obtain progeny tested at salinity 3,5,10,15 and 20 ppt from each instar stage and the use of ovitraps to see the ability to lay eggs in salinity. Analysis of distribution data, habitat characteristics, survival, salinity torelance, and LC50 test is (SPSS.24) and mapping (ArcGIS 10.5). A total of 2384 larvae were found in the coastal area. Untia, present to 28.2% (n = 1076). Kuri, 34.2% (n = 1308). In the inland region of 1852 individual larvae were found. Biringkanaya, 32.5%, and Marusu, 33.3%. The Larvae Ae. aegypti of the coastal ecosystem are 70% can survive the salinity test treatment, while inland area only 58%. LC50 shows the larval stage in coastal ecosystems has a maximum of 15,64 ppt and a minimum of 10,78 ppt. Meanwhile, the inland area a maximum of 11,09 ppt and a minimum of 9,46 ppt. The results of this study can show the adaptability of Ae.aegypti in two different ecosystems. Therefore, investigation and integrated control in vector control in coastal areas need attention.
