Browsing by Author "Zainudin, Bachok"

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    Choosing Geometric Dissimilarity Measure for Content Based Coral Reefs Image Retrieval
    (Springer, 2016) Wan Nural Jawahir, Wan Yussof; Muhammad Suzuri, Hitam; Ezmahamrul, Afreen Awalludin; Zainudin, Bachok
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    Coral Group
    (2023-08-01) Zainudin, Bachok
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    Current Status On Community Structure Of Coral Reefs Around West Coast Of Peninsular Malaysia Using Coral Video Transect Technique
    (The International Seminar on the Straits of Malacca and the South China Sea 2016, 2016) Mohd, Safuan; Hin, Boo Wee; Yusof Shuaib, Ibrahim; Izwandy, Idris; Zainudin, Bachok
    Underwater video techniques are more frequently being used in marine ecology studies. A technique called Coral Video Transect (CVT) was used to quantify percentage cover of benthic organisms within Sembilan Island Archipelago and Jarak Island, Malaysia in determining the coral community structure of the West Coast of Peninsular Malaysia. The survey was conducted in shallow water reef with a mean depth of 10.4±1.4 m deep. A total of 22 identified coral genera from 11 families were identified. A higher number of coral genera were found within Sembilan Island Archipelago (20 coral genera) as compared to Jarak Island (11 coral genera). The entire reefs were in ‘poor’ condition with mean total percentage coral cover ranging from 2.63%-23.84%. The reefs were dominated by massive and encrusting coral with decreasing order of percentage cover as followed; Porites>Tubastrea>Diploastrea>Echinophyllia. The use of CVT technique to describe the reef status was recommended as it can provide a permanent record for subsequent studies and for future comparison later on. The data presented might be useful for resources sustainability or coral reef management in Malaysia.
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    Influence Of Growth On Fatty Acid Composition Of The Moon Wrasse Thalassoma Lunare Collected In Coral Reef Habitats Of The Malaysian South China Sea
    (Tropical Ecology, 2016-12) Razikin, Amalina; Zainudin, Bachok; Takaomi, Arai
    The composition of fatty acids in fishes can serve as trophic biomarkers in the analysis of marine food webs because fatty acids can be traced as essential dietary components to higher trophic levels; however, information on tropical coral fishes is scarce. In order to understand the feeding ecology of coral reef fish, fatty acid composition and levels were examined in the moon wrasse Thalassoma lunare collected in the Malaysian South China Sea. Fatty acid composition was predominantly saturated fatty acids (SAFA) (62.5 %), followed by monounsaturated fatty acids (MUFA) (33.8 %) and polyunsaturated fatty acids (PUFA) (3.7 %). The most abundant fatty acids in SAFA, MUFA and PUFA were palmitic acid (C16:0), oleic acid (C18:1ω9c) and elaidic acid (C18:1ω9t) and linolenic acid (C18:3n3) and EPA (C20:5n3), respectively. Fatty acid concentrations, especially in SAFA and MUFA, changed with fish growth, although PUFA did not change in fish growth. Such differences might be caused by differences in the diet of the fish accompanying the growth.