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All Journal Indonesian Journal of Coastal and Marine Studies
Indra Cahyono
Institut Teknologi dan Bisnis Maritim Blaik Diwa
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science

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The Presence of Aquatic Resources in Biological Fish Aggregating Devices (Bio-FADs) Tree Technology in the Waters of the Makassar Strait Wayan Kantun; Muchlis Nawa; Indra Cahyono
Indonesian Journal of Coastal and Marine Studies Volume 1, Issue 1, 2025
Publisher : LPPM Institut Teknologi dan Bisnis Maritim Balik Diwa

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Abstract

Fishing for bottom fish has been so intensive that it is thought to have had an impact on ecosystem damage and changes in bottom fish populations. Based on this, this research was conducted to analyze the presence and composition of fish species in the Biological Fish Aggregating Devices (Bio-FADs) Tree installation area. This research was conducted in the Tanakeke waters of the Makassar Strait from August to September 2024. This research used an experimental method by installing three Bio-FADs Trees at three stations. The first station has habitat conditions without seagrass, the second station has damaged seagrass conditions, and the third station has good seagrass habitat conditions. Observations were made using underwater cameras for each station. The results of the research showed that the number of fish present at station one was 17 species with a total of 455 individuals, station 2 with 14 species totaling 293 individuals and station three with 11 species with 351 individuals. The highest presence at station one was Siganus guttatus fish at 22.86%, while at stations two and three the Pentapodus bifasciatus species were 18.77 and 18.52% respectively. Station one with a habitat without seagrass provides a higher presence of aquatic resources than the other stations.
ANALYSIS OF THE EFFECT OF TIME DIFFERENCE IN BLUE LIGHT ILLUMINATION ON GROWTH AND BEHAVIOR IN TILAPIA (Oreochromis niloticus) Masni Masni; Indra Cahyono; Ardi Eko Mulyawan; Frida Alifiah
Indonesian Journal of Coastal and Marine Studies Volume 2, Issue 1, 2026
Publisher : LPPM Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/ijcms.v2i1.112

Abstract

Freshwater and marine fish farming faces challenges as the need for tilapia (Oreochromis niloticus) is one of the many fishery commodities, easy to find and widely cultivated in Indonesia. Tilapia can be cultivated in various places such as ponds, reservoirs, rice fields, ponds, rivers and even in waters that have higher salt levels than brackish freshwater. Experimental research experiment design, factorial design (complete randomized design) The experiment carried out in this study was the use of blue light color with different times as many as 3 treatments each repeated 3 times: Treatment A = 10 watt blue light without time change Treatment B = 10 watt blue light with 4 hours Treatment C = 10 watt blue light with 6 hours. Statistical data analysis using the ANOVA test was carried out using the help of the SPSS 16.0 program. The analysis aimed to find out the influence of blue light colour on the behaviour and growth of tilapia seeds. Based on the results of the study, it can be concluded that, Treatment of different irradiation times (0 hours, 4 hours, and 6 hours) has a significant influence on the absolute weight growth of tilapia. Treatment with a 6-hour radiation time per day showed the best weight growth compared to other treatments.
Co-Authors Ardi Eko Mulyawan Frida Alifiah Masni Masni Muchlis Nawa Wayan Kantun