Oviposition of Aedes aegypti and Aedes albopictus: a study in Santarém, Pará, Brazil
Vigil Sanit Debate, Rio de Janeiro, 2025, v.13: e02395| Published on: 16/12/2025
DOI:
https://doi.org/10.22239/2317-269X.02395Keywords:
Aedes, Mosquito Control, Dengue, Amazon EcosystemAbstract
Introduction: Ovitraps are widely used traps for detecting and monitoring the oviposition of Aedes aegypti and Aedes albopictus, notable for their high sensitivity, low cost, and ease of use. Objective: To evaluate the oviposition of Aedes aegypti and Aedes albopictus in ovitraps installed on a university campus located in the city of Santarém, Pará, Brazilian Amazon. Method: A field study was conducted between November 2023 and February 2024 at the Federal University of Western Pará (UFOPA). The ovitraps used to detect species of the genus Aedes were made with dark plastic containers, Eucatex® straws, and an attractive solution and were installed in two distinct seasonal periods (dry and rainy) in the study area.
A total of 19 traps were set up, and meteorological data on precipitation and temperature were obtained from the National Institute of Meteorology (INMET). Based on the results, the Ovitrap Positivity Index (IPO) and the Egg Density Index (IDO) were calculated. Results: A total of 3,553 eggs of Aedes aegypti and Aedes albopictus were collected, of which 592 were recorded in the dry season and 2,961 in the rainy season. The IPO ranged from 47.4% to 100.0%, while the EDI ranged from 29.2 to 62.5. Conclusions: The ovitraps proved effective in detecting eggs of the two target species, indicating the continuous presence of females throughout both climatic periods, with a predominance in the rainy season.
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Author Biographies
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Iana Vitória Dias Almeida , Universidade Federal do Oeste do Pará, Santarém, PA, Brasil
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Giselle Moita de Aguiar , Universidade Federal do Oeste do Pará, Santarém, PA, Brasil
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Estefanny Melém de Andrade, Universidade Federal do Oeste do Pará, Santarém, PA, Brasil
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Marina Smidt Celere Meschede, Universidade Federal do Oeste do Pará, Santarém, PA, Brasil
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