Abstract
Biological vector control by using larvivorous fish will be beneficial in reducing Aedes aegypti population, hence reducing risk of dengue virus transmission. It is important to select the larvivorous fish according to its digestive organ.Current study aimed to investigate the predation potential among the fish species and to identify the influence of the digestive tract length of the fish related to their predation potential. The research was an analytical observational study with post-test only design. Third stage larvae of Aedes aegypti were used as preys for tilapia (Oreochromis niloticus), common carper (Cyprinus carpio), and guppy (Poecillia reticulata). In association with their digestive tract length, predation potential of tilapia, common carper, and guppy showed statistical differences (P<0.05). Tilapia demonstrated highest predation of the larvae, followed by common carper and guppy. There are associations between difference in shapes of mouth and intestines, mouth width, intestinal length, and predation potential of these fish species. Current study results showed possible associations between digestive tract length of tilapia, common carper and guppy and predation potential on Aedes aegypti larvae, allowing these fish species to be used inbiological control of Aedes aegypti.
Highlights
Dengue Haemorraghic Fever (DHF) is caused by Dengue viruses and is transmitted by Aedes aegypti (WHO, 2012)
Current study aimed to investigate the predation potential among the fish species and to identify the influence of the digestive tract length of the fish related to their predation potential
Larvivorous fish species used in the research were tilapia (Oreochromis niloticus), common carper (Cyprinus carpio), and guppy (Poecillia reticulata) aged 3-4 weeks
Summary
Dengue Haemorraghic Fever (DHF) is caused by Dengue viruses and is transmitted by Aedes aegypti (WHO, 2012). Indonesian Ministry of Public Health suggested a program to overcome the DHF problem called the ‘3M Plus’ (MOH, 2010). This program aims to drain water reservoirs, to bury thrifts that may act as potential water reservoirs, and to cover any kind of water reservoirs. Tilapia, common carper, and guppy had demonstrated benefit in vector control These fish species may be chosen as biological vector control in permanent and semi-permanent aquatic habitats.problems arose when the water became dirty due to their excretory products. Such water problem can be minimized by selecting proper and efficient species of larvivorous fish. Current study results can be used as supporting data in the policy formulation in DHF vector control
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