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The ecology of Aedes aegypti and Aedes albopictus larvae habitat in coastal areas of South Sulawesi, Indonesia ARINI RATNASARI; ARIF RAHMAN JABAL; NUR RAHMA; SRI NUR RAHMI; MILA KARMILA; Isra Wahid
Biodiversitas Journal of Biological Diversity Vol. 21 No. 10 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211025

Abstract

Abstract. Ratnasari A, Jabal AR, Rahma N, Rahmi SN, Karmila M, Wahid I, 2020. The ecology of Aedes aegypti and Aedes albopictus larvae habitat in coastal areas of South Sulawesi, Indonesia. Biodiversitas 21: 4648-4654. Aedes aegypti and Aedes albopictus are arbovirus vectors that can adapt to various environmental conditions. This study aimed to analyze the spatial distribution, habitat characteristics, and the correlation between the number of Ae. aegypti and Ae. albopictus larvae with physical factors. The larvae were collected from seven sampling locations along the coast of South Sulawesi at a distance of 100 m, 500 m, 1 km, and 2 km from the coastline. The collected samples and their water habitat were examined in the Entomology Laboratory of the Faculty of Medicine, Hasanuddin University, South Sulawesi, Indonesia. The number of larvae was counted (3182 larvae of both kinds), and the pH and salinity of the water were measured. Data analysis was performed with IBM SPSS version 24 and spatial distribution of larvae was mapped with ArcGIS version 10.5. We found that the highest number of Ae. aegypti was at a distance of 100 m from the coastline (73.34%), while Ae. albopictus was at 500 m (34.14%). Most of the mosquitos laid their eggs on discarded boats as observed in the Kurri Caddi coast (31.2%). The observed ranges of pH, salinity, and temperature of larvae habitat were 5.5-6.4, 5-2 ppt, and 28-31°C, respectively. The total number of larvae had a significant correlation p<0.05 with the physical factors, i.e., distance from the coastline, water pH, temperature, and kind of water storages (containers). This study showed that physical factors in the coastal area significantly influenced the habitat characteristics and the abundance of Ae. aegypti and Ae. albopictus larvae.
The application of novel methods of Animal Barrier Screen and Kelambu Trap for mosquitoe’s surveillance in South and West Sulawesi, Indonesia Nur Rahma; Hajar Hasan; Arini Ratnasari; Isra Wahid
Biodiversitas Journal of Biological Diversity Vol. 21 No. 10 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d211044

Abstract

Abstract. Rahma N, Hasan H, Ratnasari A, Wahid I. 2020. The application of novel methods of Animal Barrier Screen and Kelambu Trap for mosquitoe’s surveillance in South and West Sulawesi, Indonesia. Biodiversitas 21: 4787-4794. Mosquito’s surveillance requires effective protocols to catch mosquitoes in a large number of species and individuals while safe for humans. The effectiveness of two novel trap methods was compared during dry and wet seasons in rural (Maros), semi-urban (North Toraja) both in South Sulawesi Province, and rural with coastal areas (Pasangkayu) in West Sulawesi Province. Animal Barrier Screen (ABS) is a barrier screen placed near livestock, while Kelambu Trap (KT) is an innovative form of mosquito net. Both trap innovations showed effective in catching mosquitoes, but ABS was more effective in trapping the mosquitos (8,589 individuals) than KT (8,350 individuals). In contrast, the species caught were more diverse in KT (43 species, nine genera) than that in ABS (36 species, seven genera). During the wet season, ABS and KT caught 4,848 individuals (27 species, five genera) and 4,749 individuals (36 species, eight species), respectively. Mosquitoes were the most abundant in Northern Toraja (6,338 individuals), followed by in Maros (5,566 individuals) then Pasangkayu (5,035 individuals), but mosquito diversity was the highest in Pasangkayu (nine genera, 33 species) compared to that in Northern Toraja (six genera, 27 species) and Maros (five genera, 25 species). Based on the effectiveness of this trap, innovative insecticide can be added into ABS and KT traps then placed in the field. The number of mosquitoes can be significantly reduced so that it can also lower the potential spread of the mosquitoes-born viruses.