Environmental and Socio-economic Impact of Floating Net Cages Aquaculture in Cengklik Reservoir

DOI

10.2991/978-94-6463-122-7_21How to use a DOI?

Keywords

Aquaculture; Cengklik Reservoir; Eutrophication; Floating Net Cage; Water Pollutant

Abstract

The existence of Cengklik Reservoir is used by the surrounding community for aquaculture using a floating net cage system. The floating net cage system is often in demand because it reduces the loss of fish when the reservoir volume changes so that it is easier to culture, but this system also has an impact on water quality. The purpose of this study was to analyze the environmental impact of aquaculture using a floating net cage in Cengklik Reservoir on water quality and the communities economy. This study uses secondary data of fish production for the last 5 years and data on floating net cage farmers, as well as primary data on water quality analysis and trophic status to evaluate water quality which is a challenge to environmental quality. Based on analysis of satellite imagery in 2022, there are approximately 1,355 floating net cage units with total cage area of 5.92 ha. The number of cage has exceeded the Boyolali Regent Regulation No. 79 of 2020, the number of cages allowed is 400 units. Fishery production in the Cengklik Reservoir has fluctuated from 2017–2022, but the huge potential of tilapia around >2,000,000 kg/year has increased the economic potential of fish cage farmers. However, this increased opportunity also results in a decrease in water quality because fish feed settles to the bottom of the waters. This feed contains nutrients of high phosphate levels and has the potential to cause eutrophication. The results of the water quality analysis of the Cengklik Reservoir showed that the BOD and Total-P levels had exceeded the water quality standard and the trophic status (based on the Trophic State Index) is mesotrophic. This water quality condition is a challenge that needs to be resolved to make the potential of the Cengklik Reservoir sustainable.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Fatimah Nurul Mahdiyah Jayatri
AU  - Adhy Kurniawan
AU  - Susilo Budi Priyono
PY  - 2023
DA  - 2023/05/22
TI  - Environmental and Socio-economic Impact of Floating Net Cages Aquaculture in Cengklik Reservoir
BT  - Proceedings of the 3rd International Conference on Smart and Innovative Agriculture (ICoSIA 2022)
PB  - Atlantis Press
SP  - 242
EP  - 249
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-122-7_21
DO  - 10.2991/978-94-6463-122-7_21
ID  - Jayatri2023
ER  -