CD Skripsi
Pengaruh Durasi Cahaya Terhadap Pertumbuhan dan Kelangsungan Hidup Larva Ikan Gabus (Channa striata Bloch, 1793)
Snakehead fish (Channa striata) is one of the freshwater commodities that have the potential to be developed. The duration of light is one of the factors that affect the growth of larvae of farmed fish. The provision of bright and dark light can affect the activeness of the fish in search of food so that it will increase the appetite of the fish. The purpose of this study is to provide scientific information on the effect of light duration on the growth and survival of snakehead fish larvae in order to obtain the best growth results to improve the development of more optimal cultivation. This research was carried out from March to May 2023 at the Fish Hatchery and breeding laboratory of the Faculty of Fisheries and Marine Affairs, University of Riau. This study uses the experimental method with a complete randomized design (RAL) with a factor of three replications. The treatment used P1 = 12 hours of Light, 12 hours of darkness, P2 = 9 hours of light, 15 hours of darkness, P3 = 6 hours of light, 18 hours of darkness, P4 = 3 hours of light, 21 hours of darkness, and P5 = 24 hours of darkness. The larvae are kept for 40 days with a dense stocking of 2 heads/L. The results showed that light duration had an effect on growth in absolute weight, absolute length, survival and cannibalism index of snakehead fish larvae (P
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