http://umt-ir.umt.edu.my:8080/handle/123456789/878 FMSM 2026-04-05T16:52:28Z http://umt-ir.umt.edu.my:8080/handle/123456789/11728 Title: Detection of aquatic pollutants using luminescent bactteria Authors: Aty Atiqah Muhassan Abstract: Nowadays, luminescent bacteria as a sensing organism to detect the aquatic pollutants have been widely used. In this study, luminescent bacteria were identified and the effect of different concentrations of pollutants towards the density of luminescent bacteria was carried out. The luminescent bacteria were isolated from the ink of the squids. Then, the Gram staining was done to observe the shape of the luminescent bacteria. The bacteria were identified using VITEK. Besides that, the bacteria were tested with different NaCl concentration (0, 1, 2, 3, 4 and 5 % (w/v)) and at temperature (4, 26, 28, 37 and 40 ° C). Then, toxicity test was carried out with 1.5 ml of toxicants Cd, Zn Cb, HgS04, Pb(N03)2, diazinon and malathion (2, 4, 6, 8 and 10 ppm) were added to 1.5 ml of bacterial suspension in a cuvette. As for control, 1.5 ml of saline solution was added to 1.5 ml of bacterial suspensions. 2014-01-01T00:00:00Z http://umt-ir.umt.edu.my:8080/handle/123456789/11431 Title: Biomass estimation of coral reef fishes in Redang and Bidong Island by underwater Visual census methods Authors: Abu naim Ubaidurrahman Ahmad Azlan Abstract: A research regarding the estimation of biomass of coral reef fishes particularly in Redang and Bidong Island by method of underwater visual census. Estimation refers to estimating the length of fish and its amount, in-situ as accurate as possible with the help of proven method from past research. After recording the data of length and abundance, the data was integrated to biomass and CHI by length weight relationship. Diversity was also done to show species richness, diversity and evenness. CHI was also conducted to show the healthiness of coral reef base on biomass of the fishes. Results of biomass, diversity and CHI were successfully obtained in this research. 2014-01-01T00:00:00Z http://umt-ir.umt.edu.my:8080/handle/123456789/11430 Title: Antibiofilm and antibacteria activities of marine sediment actinomycetes from Bidong Island Terengganu Authors: Maizatul Azrina Yaakob Abstract: The study of actinomycetes from marine sediment is essential in order to determine antibiofilm agents which ecosystem friendly. Good antibiofilm agents are which may inhibit formation of biofilm without killing the organism itself. Therefore as a preliminary investigation of this type of anti-biofilm, anti-bacteria bioassay was used to check the toxicity of the compound produces by the isolated actinomycetes. Hence, these studies were carried out to isolate Actinomycetes from marine sediment and determine their antibacterial and antibiofim activities. Then, the potential actinomycetes strains determined by 16S rRNA and morphology studies. From the present study, different actinomycetes strains (Label Actino 1-6) were recovered from marine sediment samples collected from Bidong Island, Terengganu. 2014-01-01T00:00:00Z http://umt-ir.umt.edu.my:8080/handle/123456789/11429 Title: Biomass production of brine shrimp artemia fed with jackfruit seed based extract enriched with lecithin (JSB-L+) Authors: Khatijah Saiful Bahari Abstract: Brine shrimps Artemia nauplii and decapsulated cysts have remained the first choice for the first feeding of fishlarvae, under intensive culture. However, compared with freshly hatched nauplii, the nutritional value of on-grown and adult Artemia is much exceptional. The increasing cost of Artemia is a constraint to fish farming among resource poor farmers particularly in the developing world, which has necessitated the need for alternative feeds. It has been shown that most of the feed used in the process of on-grown Artemia is costly and difficult to prepare. The use of jackfruit seed, a common agriculture waste product is a potential alternative to substitute the use microalgae Spirulina in the biomass production of Artemia 2014-01-01T00:00:00Z