Background: The discovery of Aedes spp. in the breeding sites is the leading cause of the high incidence of Dengue Hemorrhagic Fever (DHF) in Yogyakarta in 2019. This incidence can be calculated based on the Container Index (CI), House Index (HI), and Breteau Index (BI). Efforts to control the density of Aedes spp. The use of organophosphate insecticides in the long term and with the wrong dose will cause resistance. Purpose: This research was conducted to determine the potential breeding sites, the density, and the organophosphate resistance status of Aedes spp. in Yogyakarta. Methods: A literature review with the criteria of referenced journals from 2011-2020, national journals accredited at least Sinta 5 to Sinta 1 and international journals at least Q4 to Q1. Results: This study shows that the potential breeding sites for Aedes spp. in Yogyakarta, in general, are both indoors or outdoors, stagnant clean water, opened, not exposed to direct sunlight, and the duration of not eradicating the mosquito nests > 1 month. Aedes spp. in Yogyakarta has a high population density, so it is at high risk of transmitting dengue cases. The resistance status of Aedes spp. in various regions of Yogyakarta are categorized as resistant to organophosphate insecticides. Conclusion: Literature review requires field research also, implementation of prevention through the mosquito nests eradication program and 3M (Shutting, Draining, and Burying), and the replacement of insecticides types other than organophosphates.

Prasetya TA, Nazira FK, Millaty INK, Zulfikar WG, Nazara FA, Trijoko. 2017. Molluscan diversity (Gastropoda: Neogastropoda) in intertidal zone of Nguyahan Beach, Gunungkidul, Yogyakarta, Indonesia. Ocean Life 1: 55-60. Neogastropod is a taxonomic order of sea snails which have a well developed siphonal canal on their shell. The order includes many families and the highest diversity species can be found in tropical seas. Nguyahan Beach is a tropical beach located in Kanirogo, Sapto Sari, Gunungkidul, Yogyakarta, Indonesia. The beach is still natural and the substrates are dominated by fine sand and coral reef flats. The aim of this research was to understand the diversity of Neogastropod in the intertidal zone of Nguyahan Beach, Gunungkidul, Yogyakarta. The research was conducted on March - May 2017. The ecological parameters recorded were 27°C for water temperature, 3.4% for salinity, and 7 for pH. Sample collection was conducted using purposive sampling method. The result of this research shows 5 families of Neogastropod order, they were Muricidae, Nassaridae, Conidae, Columbellidae, and Mitridae, while the most diverse family was Muricidae with 3 genera.