Japar Sidik Bujang

Japar Sidik Bujang
Universiti Putra Malaysia | UPM · Department of Biology

PhD (Biology), USM

About

131
Publications
99,226
Reads
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2,717
Citations
Citations since 2016
22 Research Items
1876 Citations
20162017201820192020202120220100200300
20162017201820192020202120220100200300
20162017201820192020202120220100200300
20162017201820192020202120220100200300
Additional affiliations
January 2015 - January 2018
Universiti Putra Malaysia
Position
  • Professor (Full)
January 2006 - November 2014
Putra University, Malaysia (Bintulu Sarawak Campus)
Position
  • Dean and Professor, Faculty of Agriculture and Food Sciences

Publications

Publications (131)
Article
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Mass proliferation and accumulation of the green macroalga Ulva reticulata are problems in coastal areas and affect other ecosystems, such as those involving seagrasses. In the absence of any intervention, the decomposition of these macroalgae over time can disrupt the balance of recipient ecosystems. Attention has been given to the potential use o...
Article
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This paper summarizes the use of museum of biological collection (MBC) in comparison of chemical contaminants between the past and the present specimens. It is inferred that MBC provides a unique and crucial insight into the spatio-temporal trend of environmental contamination by establishing a historical reference point.
Article
Background: Coastal land development has deteriorated the habitat and water quality for seagrass growth and causes the proliferation of opportunist macroalgae that can potentially affect them physically and biochemically. The present study investigates the morphological and biochemical responses of seagrass from the Hydrocharitaceae family under t...
Article
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Passiflora quadrangularis L. belongs to the family Passifloraceae which bears larger fruit with edible juicy mesocarp and pulp known as a good source of phytochemicals. Cultivation and plant management practices are known to influence the phytochemical compositions of agricultural produce. This study aimed to examine the influence of the cultivatio...
Article
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Although Southeast Asia is a hotspot of global seagrass diversity, there are considerable information gaps in the distribution of seagrass beds. Broad-scale seagrass distribution has not been updated in the global seagrass database by UNEP-WCMC since 2000, although studies on seagrasses have been undertaken intensively in each region. Here we analy...
Article
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Currently, bee-gathered pollen (bee pollen) is commonly used worldwide as a dietary supplement and is recognized for its curative properties. Floral pollen is also important but is less recognized due to a lack of investigation. This study aims to determine the morphological characteristics and nutritional and phytochemical properties of floral mai...
Article
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Passiflora quadrangularis L., also known as giant granadilla, belongs to the family Passifloraceae together with the well-known species Passiflora edulis Sims. This species has received attention from growers in recent years due to its aromatic flowers, unique and excellent fruit flavor and phytotherapeutic properties. Despite the numerous health b...
Article
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Starch, especially from terrestrial plants, is widely used in food and non-food industries. Marine macrophytes such as Enhalus acoroides also provide a considerable amount of starch in their storage parts such as rhizomes and seeds, but these have yet to be explored to fully understand their functionality. This study focused on the morphology, chem...
Article
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This study focused on proximate composition and mineral content of edible seeds of three Passiflora species; P. edulis (Purple), P. quadrangularis and P. maliformis. The moisture content ranged 9.18±0.34% in P. edulis (Purple) to 11.09±0.40% in P. quadrangularis, and the ash content was higher in P. quadrangularis (2.35±0.13%). Among the Passiflora...
Conference Paper
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Local communities in Sarawak rely on the indigenous plants for food, medicine, and household needs. Indigenous plants are usually available in native markets, and their availability is variable depending on localities and seasons. The surveys on indigenous plants were conducted at native weekend markets in Bintulu, Selangau, Sibu, and Sarikei. The...
Article
Increasing global paper consumption has fostered the search for new alternative non-wood fiber sources. The aquatic weeds Cyperus digitatus, Cyperus iria, and Scirpus grossus were analysed for their fiber characteristics and chemical composition, and the processed fibers were transformed into handmade paper. The selected species yielded medium-leng...
Article
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Southeast Asia has the highest diversity of seagrass species and habitat types, but basic information on seagrass habitats is still lacking. This review examines the known distribution, extent, species diversity, and research and knowledge gaps of seagrasses in Southeast Asia by biogeographic region of the Marine Ecoregions of the World (MEOW). The...
Conference Paper
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Wild plants comprised assortments of non-timber products that are commonly traded at weekend native markets or tamu. Surveys on wild plants utilization were conducted in selected areas; Bintulu, Sibu, Sarikei, Selangau and Sibu, Sarawak from December 2009 until September 2010. The various preparations for consumption by the local communities were a...
Conference Paper
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Seagrass ecosystems provide a number of ecosystems services. Seagrass bed yields US$ 19,004/ha/yr in the value of wetland services. In South East Asian countries, the majority of tropical seagrass species (15 species) are being recorded in Malaysia. About 91 species of fish and crustacean are being recorded from the seagrass habitats of Malaysia th...
Article
The governments of the six Coral Triangle Initiative (CTI) countries, namely Indonesia, Malaysia, Philippines, Timor Leste, Papua New Guinea and the Solomon Islands have expressed their commitment to protecting marine ecosystems and improving management systems. Achieving the above commitment requires detailed baseline information on the spatial di...
Article
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Marine angiosperms could inevitably offer considerable potential resources for their fiber, yet little research has been conducted, especially in Malaysia. Fiber characteristics of five species of seagrass – Enhalus acoroides, Cymodocea serrulata, Thalassia hemprichii, Halophila ovalis, and Halophila spinulosa – were evaluated. Fiber dimensions wer...
Article
Marine angiosperms could inevitably offer considerable potential resources for their fiber, yet little research has been conducted, especially in Malaysia. Fiber characteristics of five species of seagrass - Enhalus acoroides, Cymodocea serrulata, Thalassia hemprichii, Halophila ovalis, and Halophila spinulosa - were evaluated. Fiber dimensions wer...
Article
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The demand for vegetables oils especially palm oil has increased drastically. However, rapid development in oil palm industry leads to many issues, especially regarding sustainable development of palm oil cultivation. Soil algae play an important role in the maintenance of soil fertility as well as recycling of soil organic matter. Their taxonomic...
Article
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Increasing concerns for future fiber supplies in pulp and paper industries has shifted interest in nonwood sources from agriculture residues and aquatic plants. Aquatic plants with short growth cycles, in abundance, and with low lignin are a potential fiber source. Five aquatic plant species, Cyperus digitatus, Cyperus halpan, Cyperus rotundus, Sci...
Article
Seagrass mapping and monitoring using remote sensing has been established using various imageries and mapping methods, ranging from complex optical modeling to manual interpretations. Few attempts have been made to find relations between spatiotemporal changes within seagrass habitats and their surrounding environment in the mapping efforts. In thi...
Article
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Eight seaweed species in Teluk Kemang and three seagrass species in Teluk Pelanduk, Port Dickson, respectively, were screened for antibacterial activities. The antibacterial activities were screened using disc diffusion test, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against six aquacultural pathogens strai...
Article
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The present work deals with plant structure, phenology, litter production and decomposition of mangrove Avicennia marina in the newly re-generated mangrove forest in sub-tropical coast. The natural generation in this accreted coastal land of mono-specific A. marina forest stand was prominent, with 45% seedlings and 32% saplings. Peak flowering and...
Article
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The data gaps in the Landsat 7 Enhanced Thematic Mapper Plus (ETM+) Scan Line Corrector (SLC)-off imagery as a result of SLC failure are well recognized. The degradation introduced by their use in scientific applications is concerning to Landsat users. SLC-off data gaps cause problems in many applications of ETM+ images, but no literature reported...
Article
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Methods to predict and fill Landsat 7 Scan Line Corrector (SLC)-off data gaps are diverse and their usability is case specific. An appropriate gap-filling method that can be used for seagrass mapping applications has not been proposed previously. This study compared gap-filling methods for filling SLC-off data gaps with images acquired from differe...
Article
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In Malaysia, seagrasses commonly inhabit shallow intertidal waters, semi enclosed lagoons, mangroves, coral reef flats and shoals in subtidal zones. Seagrass meadows have widely been surveyed by field sampling methods. As an alternative means to field-based surveys, airborne and/or satellite based sensors have been used to produce cost-effective an...
Article
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The present study determined and compared contents of macro-(Nitrogen-N, Phosphorus-P, Potassium-K, Calcium-Ca, Magnesium-Mg) and micro-(Zinc-Zn, Iron-Fe, Manganese-Mn, Cupper-Cu) nutrients in four seagrass species; big-leaved (BL) Halophila ovalis (R. Br.) Hook. f., small-leaved (SL) H. ovalis (R. Br.) Ascherson, H. spinulosa (R. Br.) Aschers. in...
Article
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The study was carried out to investigate the diversity of epifaunal bivalves in Merambong seagrass bed, Pulai River Estuary. The sample collection field trips started from May 2008 to July 2009, 18 transects (from six stations) have been laid perpendicularly along the elongated shoal during lowest low spring tide. A total of 15 species from 10 biva...
Article
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Article
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This study used morphological characterization and phylogenetic analysis of the internal transcribed spacer (ITS) region of nuclear ribosomal DNA to investigate the phylogeny of Passiflora species. The samples were collected from various regions of East Malaysia, and discriminant function analysis based on linear combinations of morphological varia...
Article
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Background The Indo-Pacific region has the largest number of seagrass species worldwide and this region is considered as the origin of the Hydrocharitaceae. Halophila ovalis and its closely-related species belonging to the Hydrocharitaceae are well-known as a complex taxonomic challenge mainly due to their high morphological plasticity. The relatio...
Article
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The abundance of marine benthic organisms often exhibits distinct distributional patterns, which is generally governed by many physical and biological factors specific to the habitat. In this study, the spatial and temporal variations in abundance of the dog conch, Strombus canarium Linnaeus 1758, a commercially important marine gastropod, was inve...
Article
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This study focused on total phenolic content (TPC) and antioxidant and antibacterial activities of the leaves and stems of Passiflora quadrangularis, P. maliformis, and P. edulis extracted using three solvents: petroleum ether, acetone, and methanol. The maximum extraction yields of antioxidant components from the leaves and stems were isolated usi...
Article
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This study was performed to explore aquatic plants potential as raw materials to be used as alternative fibers in papermaking. Aquatic plants; Eleocharis dulcis, Limnocharis flava, Nymphaea nouchali, Blyxa aubertii and Cyperus malaccensis were collected from wetland areas and used as raw materials for handmade papermaking. Variables include; cell w...
Article
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The diversity and ecosystem significance of macrophyte communities was studied, with emphasis on the mangrove species in the Bakkhali estuary of Cox's Bazar, Bangladesh. Macrophytes of the Bakkhali river estuary were mainly mangroves (Avicennia marina Forssk Vierh and A. alba Blume and Acanthus ilicifolius Linnaeus) of inundation Class-IV; i.e., th...
Article
Seagrasses are marine angiosperms and adapted to aquatic life several times independently. In tropical as well as in temperate regions they play an important role in the coastal ecosystem. Classification according to morphology remains difficult due to very similar adaptations to the aquatic lifestyle and small simple flowers which are often not ev...
Article
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Eleven wild plant species documented with fruits mainly used for food and other uses were based on the acquired knowledge passed from elders that has provided local people with wide selection of plants in their diets. Based on the information obtained, 11 wild fruit species were investigated for their sugar concentrations. Taste preference (e.g., m...
Article
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Background: The levels of sugars, ascorbic acid, total phenolic content (TPC) and total antioxidant activity (TAA) were determined in fruit juices from seven passion fruit (Passiflora spp.) cultivars: P. edulis cultivars Purple, Frederick, Yellow, Pink, P. edulis f. flavicarpa, P. maliformis and P. quadrangularis (we also tested this cultivar's me...
Article
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Halophila beccarii Aschers., a small monoecious seagrass with rosette leafy shoot and well-developed rhizome or underground stem that acts as anchors occurs in environment with salinity fluctuation e.g., brackish coastal water of mangrove system, lagoon and marine coastal areas. Shoots represent most of the above-ground component of the plant and i...
Article
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Intertidal areas exhibit wide ranges in their extent and environmental conditions and these potentially can result in complex distributional pattern and life styles for many species including seaweeds. A study on seaweeds diversity and life forms was conducted at two intertidal sites in Negeri Sembilan i.e., (1) Teluk Kemang, a rocky outcrops area...
Article
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The Perhentian Island archipelago, Terengganu in east coast of Peninsular Malaysia is relatively in isolation from the mainland and poor accessibility has led to the paucity of observation on marine animals and plants e.g., seagrasses for the archipelago. Field surveys on seagrasses around Perhentian Besar Island and Perhentian Kecil Island was con...
Article
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Incidences of hermaphroditism in green mussels (Perna uiridis) were determined in four different areas (Sebatu, Port Dickson, Muar and Johor Bahru) along the west coast of Peninsular Malaysia. In Sebatu, 1000 specimens of green mussels were used for the visual determination of sex ratios. The male:female visual ratio was 1:0.79. Three hundred and s...
Article
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Purple coloration in leaves of Halophila from Merambong shoal of Sungai Pulai estuary, Johore and Merchang, Terengganu, Malaysia were investigated using a simple detection method based on chemical properties of anthocyanin that changes from red in acids to blue in bases. In addition the presence of anthocyanin was examined for the absorption maxima...
Article
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Despite their economic importance, the ecology of Strombus canarium is poorly understood and factors influencing their habitat preferences remain largely unexplained. The species was reported as highly associated with seagrass bed ecosystems, but their distribution and specific preferences within the habitat remain unknown. Determining the mechanis...
Article
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Age and growth of Pinna bicolor were examined in the seagrass beds of Merambong shoal (N 1 degrees 19'55.62''; E 103 degrees 35'57.75'') off the south-western coast of Johor, Peninsular Malaysia between May 2006 and April 2007. Monthly growth increment data of P.similar to bicolor were analyzed using FiSAT software (FAO-ICLARM Stock Assessment Tool...
Article
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Azolla pinnata R.Br. growth performance experiments in different water sources were conducted from May until July 2011 at Aquaculture Research Station, Puchong, Malaysia. Four types of water sources (waste water, drain water, paddy field water and distilled water) each with different nutrient contents were used to grow and evaluate the growth perfo...
Article
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Trapa bispinosa is a freshwater macrophyte occurring in stagnant or slow moving water streams. Information on assessment of seeds storage and germination of Trapa bispinosa is less available in literature. Dependence on fresh seeds abundance only from natural environment for plant propagation or cultivation may lead to insufficient supply of seeds...
Article
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Reproductive cycle, growth, mortality and exploitation rate of Acetes indicus were examined in the coastal waters of Malacca, Malaysia between February 2005 and March 2007. Monthly length frequency data were analyzed using FiSAT software for estimating population parameters of A. indicus, including asymptotic length (L∝), growth co-efficient (K) an...
Article
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Five species of sergestid shrimps viz., Acetes indicus, Acetes japonicus, Acetes intermedius, Acetes vulgaris and Acetes serrulatus were identified from the different coastal region of Peninsular Malaysia and East Malaysia. Acetes indicus was recorded from the coastal waters of Klebang Besar in the state of Malacca and also in Kuala Gula Perak. The...
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Shrimps of the genus Acetes Milne-Edwards, 1980 are ecologically and commercially important. The diet composition of A. serrulatus were examined based on 370 specimens collected in the coastal waters of Johor, Peninsular Malaysia from April 2008 to April 2009. The food items in the gut of A. serrulatus were comprised of phytoplankton, zooplankton,...