Browsing by Author "Nabilah Mohamad Ali"

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    The effect of light spectrum and intensity on photosynthetic rate of Galaxea fascicularis.
    (Universiti Malaysia Terengganu, 2007) Nabilah Mohamad Ali
    This study aims to study the effect of light spectrum and intensity on Galaxea fascicularis. Photosynthetic rates of Galaxea fascicularis were determined under different light spectrum and intensities. The specimens were exposed to white, yellow, primary green, deep blue, medium amber and plasa red light treatment for three hours. Control was conducted by treating the corals under dark condition. Each light treatment was supplied with a constant intensity of 11.25 µmolm-21
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    The effect of salinity exposure on the gene expression in the Pangasius nasutus (Bleeker, 1863) muscle
    (Terengganu: Universiti Malaysia Terengganu, 2013-01) Nabilah Mohamad Ali
    Salt has been the traditional remedy used in aquaculture industry which is also widely applied in the culture practice of pangasids. With the extensive use of salt in the aquaculture industry, the study on Pangasius nasutus molecular responses in the muscle tissue towards salinity exposure is still limited. Due to this, a study was carried out to identify genes that were expressed during salinity exposure in the muscle tissue of P. nasutus.
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    Genetic Diversity in Farmed Tiger Grouper Broodstock Inferred by Partial Cytochrome b Gene
    (International Journal of Chemical, Environmental & Biological Sciences (IJCEBS), 2015) Noraini Che Hassan; Abdul Hadi Abdul Aziz; Nabilah Mohamad Ali; Nur Asma Ariffin; Ivan Koh Chong Chu; Sufian Mustafa; Shahreza Md. Sheriff
    A study was conducted to determine the genetic diversity of a farmed tiger grouper Epinephelus fuscoguttatus broodstock population located in Tanjung Demong, Terengganu using Cytochrome b (Cyt-b) gene. A total of 51 broodstock were collected and subjected to DNA extraction. PCR amplification of partial Cyt-b was conducted using a universal Cyt-b primer. The fragments were then purified, sequenced and the genetic relationship among individuals was analyzed. A total of 402 bp length of partial Cyt-b gene was obtained from each sample. Genetic distance among individuals ranged between 0.002 – 0.018. Seven haplotypes were found within the population with 2 haplotypes (Hap01 and Hap02) are commonly shared by most individuals. Phylogenetic analysis showed broodstocks is divided into two major groups. However, 47 individuals were clustered in 1 group with shallow genetic divergence. These findings indicate the tiger grouper broodstock have low genetic diversity and most of the individuals might be originating from a single population. Genetic diversity of mtDNA cyt-b of E. fuscoguttatus would be useful in tiger grouper broodstock management in breeding program for seed production.