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Application of Insect Light Traps to Support Fish feed of Rice-Fish Farming System: A Conservation Effort based on Community in Rawa Pening Lake Semarang, Indonesia
Jafron W Hidayat1), Mochamad Hadi1), Rini Budihastuti1), Zulhaq D Siqhny2) dan Gatot Yulianto3)

1).Departemen Biologi, Fakultas Sains dan Matematika Universitas Diponegoro Semarang, email : wasiqjep[at]gmail.com
2).Jurusan Teknologi Hasil Pertanian, Fakultas Teknologi Pertanian Universitas (USM) Semarang
3).Departemen Fisika, Fakultas Sain dan Matematika Universitas Diponegoro Semarang


Abstract

Lake body water is very vulnerable to disruption, especially of the eutrophication which triggered by over application of fertilizers from agricultural practices. One strategy to overcome this is to apply organic farming. This practice has long been promoted by the government, but the fact is only a few farmers adopted. Additional culture activities are needed in this manner with an environmentally friendly base that can benefit economically as well as ecologically to the Rawa Pening lake and surrounding. One strategic system to add is fish-rice farming (minapadi). Research is aimed at identifying potential insects which can be used as natural feed (organic). It is also to determine the most efficient insect trapping periods and fish growth. This research is an experimental study using rice-fish farming ponds in the downstream of the Galeh river, an inlet Rawa Pening Lake, Ambarawa. The research designs used are descriptive analysis and analytic using Anova with T test. The results of the study showed that there were 18 species of rice fields insects, which potential to support fish-rice farming. Orseolia eryzae, Conochepalus transversalis and Paranaemia vittivera are the most common insects found. All the three are pests in status that are relatively small in size. These species have potential to support fish feed, especially for fish seed or small size food of baby fish snack (economic value). Test on the trap period shows at 17:45 - 18:45 WIB of dawn has more insect encountered than the 2nd and 3rd periods. Insect density reaches 15 individual of several species of insects. This mean that organic fish feed from insects is best available between 17:45 to 18:45. If it is extended to the next two hours, there will be no significant accumulation of significant additional feed, labor and wasting farmers electricity and operational. In general, rice-fish farming ponds can independently provide natural food (organic) which supports the growth of fish and thus also increase the income and harvest of organic farmers in the upstream of the lake.

Keywords: Fish-Rice farming, light traps, insects feed, lake conservation

Topic: Environment, Health, and Safety

Link: https://ifory.id/abstract/DpM8chERbqeU

Conference: The 1st International Conference on Environment, Sustainability Issues and Community Development (INCRID 2019)

Plain Format | Corresponding Author (Jafron W Hidayat Hidayat)

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