Optimalisasi Faktor Lingkungan terhadap Jumlah Spora Terlepas pada Gelidium sp.

Abstract

This research was conducted to determine the influence of combined environmental factors on the optimum number of spores released from Gelidium sp. The research was done at the laboratory of Marine Science Development in Jepara.The design of the experiment used was split plot design based on Completely Randomized Design with three factors : light intensity, photoperiod and salinity. Each treatment has three replications. As main plot was combination between light intensity and photoperiod with three levels respectively ( 100 lux ; 500 lux ; 1000 lux ) and photoperiod 14 hours light 10 hours dark ( 14 : 10 hours ; 16 : 8 hours ; 18 : 6 hours ) sub plot was salinity ( 25 %o ; 30 %o ; 35 %o ). The collected data were statistically analyzed with ANOVA, followed by DMRT.The result revealed that the treatment gave the significant effect on the spores released. The optimum average number of spore released of Gelidium sp. Were the combination of light intensity 500 lux, photoperiod 16 : 8 hours and salinity 30 %o. There was a positive interaction between these three factors in affecting the spore released.