Marine

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https://repoemc.ukm.my/handle/123456789/52

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A baseline study of tropical coastal water quality in Port Dickson, Strait of Malacca, Malaysia
(Elsevier, 2013) Sarva Mangala Praveena; Ahmad Zaharin Aris
Tidal variation in tropical coastal water plays an important role on physicochemical characteristics and nutrients concentration. Baseline measurements were made for nutrients concentration and physicochemical properties of coastal water, Port Dickson, Malaysia.
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A half-century record of coral skeletal P/Ca reveals late 20th century nutrient pollution in Port Dickson, Malaysia
(Elsevier, 2022) Chen Mengli; Chia Hao Kai; Patrick Martin; Jen Nie Lee; Ryan P.A. Bettens; Jani T.I. Tanzil
Anthropogenic nutrient pollution has been identified as one of the key stressors of coastal ecosystems. However, the paucity of long-term nutrient records limits our understanding of both the extent of nutrient pollution as well as of the ecological impacts. Here, using coral skeletal phosphorus (P/Ca), we reconstructed a half-a-century record of seawater phosphate at Port Dickson, Malaysia.
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A Scientometric Review of The Impacts of Global Climate Change Towards Marine Biodiversity Research: The Rise and Progress
(IOP Publishing, 2022) Mohamad Nor Azra; Mohd Iqbal Mohd Noor; Nadiah Wan Rasdi; Mazlan Abd Ghaffar
The current study aimed to give an overview on the impact of climate change towards global marine biodiversity and ecosystem services. A scientometric methodology was implemented using the Web of Science (WoS) Core Collection database for the period from January 1970 to May 2021.
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A study on the activity concentration of Po-210 in the marine environment of the Kapar coastal area
(Universiti Kebangsaan Malaysia, 2011) Lubna A.; Nik Azlin N. A.; Afiza Suriani S.; Mohamed, C.A.R
The distribution of a natural radionuclide (Po-210) in seawater, total suspended solid (TSS), sediment and marine organisms was quantified using alpha spectrometry at the coastal area of Kapar, Malaysia. It was observed that the Po-210 activity in TSS was much higher than that of water and sediment samples.
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A two-band algorithm for total suspended solid concentration mapping using THEOS data
(Coastal Education & Research Foundation, Inc., 2013) H.S. Lim; M.Z. MatJafri; K. Abdullah; R. Asadpour
Environmental monitoring through the method of traditional ship sampling is time consuming and requires a high survey cost. This study was carried out to investigate the relationship between total suspended solids (TSS) and satellite THEOS data by using a calibrated algorithm. The study area is the seawater region around Penang Island, Malaysia. Water-quality TSS values were collected simultaneously during the acquisition of the satellite imagery and later analyzed in the laboratory.
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Abundance and distribution of microplastics in tropical estuarine mangrove areas around Penang, Malaysia
(Frontiers Media S.A., 2023) Evonne Tan; Norlaila Binti Mohd Zanuri
Our study aims to provide a basic understanding on the abundance of MPs present in mangrove estuaries around Penang and assess the extent of its pollution. We are interested to see whether the influence of anthropogenic activities coincides with the severity of MP pollution of the study sites. Our study also aims to provide meaningful data that can be used for pollution management and control. Furthermore, we aim to narrow the knowledge gap on MP pollution in Malaysiathat will encourage mitigation efforts in the near future.
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Analyzing the East Coast Malaysia Wind Speed Data
(International Energy and Environment Foundation (IEEF), 2009) Siti Khadijah Najid; Azami Zaharim; Ahmad Mahir Razali; Mohd Said Zainol; Kamarulzaman Ibrahim; Kamaruzzaman Sopian
Recently, wind energy conversion is also given a serious consideration in Malaysia. Since Malaysia lies in the equatorial region and its climate is governed by the monsoons, the potential for wind energy generation in Malaysia is very much depends on the availability of the wind resource that varies with specific location. In the present study, the wind energy potential of the location is statistically analyzed based on wind speed data, measured over two years period. The probability distributions are derived from the wind speed data and their distributional parameters are identified. Three types of probability distributions have been used to estimate the wind energy potential in Kuala Terengganu, east Malaysia.
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Assessment of surface water quality in a Malaysian port via multivariate statistical analysis
(UiTM Press, 2022) Wan Nur Fazlina Abdol Jani; Firdaus M.H; Fatihah Suja; Shahrom Md Zain; M. Abdullah
Maritime transport has become an important method of comprehensive connectivity for imports and exports for major centers of economic activity all over the world. These activities have grown without addressing their pollution impact on environment. Water samples in a port in Malaysia were collected to find the similarities and differences in the physicochemical aspect.
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Assessment on the distributions and exchange of anionic surfactants in the coastal environment of Peninsular Malaysia: A review
(Springer, 2022) Royston Uning; Suhaimi Suratman; Mohd Talib Latif; Nur Ili Hamizah Mustaffa
Terrestrial anionic surfactants (AS) enter the marine environment through coastal region. Despite that, in general limited knowledge is available on the coastal AS transfer pathway. This paper aims to assess the distributions and exchange of AS in the Peninsular Malaysia coastal environments, adjacent to the southern waters of South China Sea and Strait of Malacca.
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Azimuth cut-off model for significant wave height investigation along coastal water of Kuala Terengganu, Malaysia
(Elsevier, 2002) Maged Marghany; Zelina Ibrahim; Johan Van Genderen
The present work is used to operationalize the azimuth cut-off concept in the study of significant wave height. Three ERS-1 images have been used along the coastal waters of Terengganu, Malaysia. The quasi-linear transform was applied to map the SAR wave spectra into real ocean wave spectra. The azimuth cut-off was then used to model the significant wave height.
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Baseline metals pollution profile of tropical estuaries and coastal waters of the Straits of Malacca
(Elsevier, 2013) Ley Juen Looi; Ahmad Zaharin Aris; Wan Lutfi Wan Johari; Fatimah Md. Yusoff; Zailina Hashim
The status report on metal pollution in tropical estuaries and coastal waters is important to understand potential environmental health hazards. Detailed baseline measurements were made on physicochemical parameters (pH, temperature, redox potential, electrical conductivity, salinity, dissolved oxygen, total dissolved solid), major ions and metals concentrations at estuaries and coastal waters along the Straits of Malacca.
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Biomonitoring of Trace Metals (Fe, Cu, and Ni) in the Mangrove Area of Peninsular Malaysia Using Different Soft Tissues of Flat Tree Oyster Isognomon alatus
(Springer, 2011) C. K. Yap; A. R. Azmizan; M. S. Hanif
It is well documented that marine oysters are net bioaccumulators of trace metals and they can be employed as biomonitors of time-integrated measurements of bioavailable metal fractions over their lifetime. In this study, the Malaysian mangrove flat tree oyster Isognomon alatus collected from the estuaries of Lukut River (five sites), Sepang Besar River (one site), and one metal-polluted site at Kg. Pasir Puteh were dissected into muscle, mantle plus gills, byssus, and remaining soft tissues. All the four different soft tissues were analyzed for Fe, Cu, and Ni. Significant spatial differences in the accumulated metal concentrations of the oysters were found between sampling sites, and these could be attributed to anthropogenic inputs including discharges of shrimp ponds (Lukut), animal husbandry (Sepang Besar), sewage, shipping, and industrial effluents (Kg. Pasir Puteh).
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Can mangroves help combat sea level rise through sediment accretion and accumulation?
(Universiti Malaya, 2015) Hoque M. M.; Abu Hena M. K.; Ahmed O. H.; Idris M. H.; Hoque A. T. M. Rafiqul; Billah M. M.
Mangroves have substantial roles to induce sedimentation in the vulnerable coastala regions, which subsequently helps to combat climate change induced impacts like sea level rise. Although Sarawak has numerous pristine estuarine mangroves, studies on the roles of these mangroves in regards to sediment deposition are scanty. Therefore, this study was carried out to determine the sediment accretion and accumulation pattern of pristine Sibuti mangrove using tiles and sediment traps from January to December 2013.
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Contamination of diuron in coastal waters around Malaysian Peninsular
(Elsevier, 2014) Hassan Rashid Ali; Marinah Mohd Arifin; Mohammed Ali Sheikh; Noor Azhar Mohamed Shazil; Said Suleiman Bakari; Zainudin Bachok
The use of antifouling paints to the boats and ships is one among the threats facing coastal resources including coral reefs in recent decades. This study reports the current contamination status of diuron and its behaviour in the coastal waters of Malaysia.
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Correlation Study between Land Use, Water Quality, and Heavy Metals (Cd, Pb, and Zn) Content in Water and Green Lipped Mussels Perna viridis (Linnaeus.)at the Johor Strait
(Springer, 2012) Tony Hadibarata; Faizuan Abdullah; Abdull Rahim Mohd Yusoff; Razali Ismail; Shamila Azman; Norliyana Adnan
In order to observe the variation in land use changes, satellite images from the Landsat Thematic Mapper (TM) and the Enhanced Thematic Mapper (ETM) for 1991, 2000, 2005, and 2008 were used to compare the differences between selected water quality parameters, including heavy metal (Cd, Pb, and Zn) content in both water and green mussels or Perna viridis (Linnaeus.) before and after the increase in land use activities beginning from 2006. The samples were collected at 11 points for water and 4 points for green mussels between the Second Link and the Causeway Link at the Johor Strait in 2009 and were analyzed for pH, temperature degrees Celsius), dissolved oxygen, ammoniacal nitrogen, and heavy metal (Cd, Pb, and Zn) content.
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Crystalline style and tissue redistribution in Perna viridis as indicators of Cu and Pb bioavailabilities and contamination in coastal waters
(Elsevier, 2006) C.K. Yap; A. Ismail; W.H. Cheng; S.G. Tan
The concentrations of Cu, Pb, and Zn in the crystalline style (CS) and in the remaining soft tissues (ST) of the green-lipped mussel Perna viridis from 10 geographical sites along the coastal waters off peninsular Malaysia were determined. The CS, compared with the remaining ST, accumulated higher levels of Cu in both contaminated and uncontaminated samples, indicating that the style has a higher affinity for the essential Cu to bind with metallothioneins. The similar pattern of Cu accumulation in the different ST of mussels collected from clean and Cu-contaminated sites indicated that the detoxification capacity of the metallothioneins had not been overloaded. For Pb, higher levels of the metal in the CS than in the remaining ST were found only in mussels collected from a contaminated site at Kg. Pasir Puteh.
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Determination of significant wave height offshore of the Federal Territory of Labuan (Malaysia) using generalized Pareto distribution method
(Coastal Education & Research Foundation, Inc., 2018) Soheil Saeed Far; Ahmad Khairi Abd Wahab; Sobri Bin Harun
Probabilistic evaluation of surface waves was undertaken to estimate extreme wave heights for several return periods to use them in coastal and offshore constructions in the Labuan region. Generalized Pareto distribution (GPD), which is the standard practice in mainstream extreme statistics, was developed in MATLAB programming. Several diagnostic plots were drawn to ensure the validity of the GPD model. Extreme wave heights were estimated for several return periods and the confidence intervals band was determined for the estimated extreme wave heights. The wave height data set used in the modeling was observed during a 41-year period from 1949 to 1989, in the South China Sea, inside the offshore area of the Federal Territory of Labuan, off the coast of Sabah, Malaysia.
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Determination of total hydrocarbon concentration in coastal waters and sediments off the east coast of Peninsular Malaysia
(Chapman & Hall, 1997) Norhayati Mohd. Tahir; A.R. Abdullah; S. Shanmugam
To determine the level of total hydrocarbon concentrations (THCs) along the eastern coastal regions of Peninsular Malaysia, samples of subsurface seawater (1 m) and surface sediments were collected from several sampling stations between June and August 1993.
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Distribution and contamination of heavy metal in the coastal sediments of Port Klang, Selangor, Malaysia
(Springer, 2013) Seyedeh Belin Tavakoly Sany; Aishah Salleh; Majid Rezayi; Naghmeh Saadati; Leila Narimany; Ghazaleh Monazami Tehrani
The coastal sediments of Port Klang in Malaysia were monitored from November 2009 to October 2010 to evaluate the spatial distribution of heavy metals As, Cu, Cd, Cr, Ni, Pb, Zn, Pb, Mn, Al and Fe. Sediment samples were collected from 21 stations, covering three subsidiary ports, namely West Port, North Port and South Port, at three-month intervals. The geo-accumulation index and the enrichment factor were estimated to assess contamination status based on background values.
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Distribution of polycyclic aromatic hydrocarbons (PAHs) found in water along the Northern Straits of Malacca
(Universiti Malaya, 2008) Richard C.S. Wong; Meng Lai Liew; Chun Foong Chan
Marine water samples were collected during the SESMA I expedition along the northern Straits of Malacca. The route encompassed the Klang islands, the estuaries of the Selangor, Bernam and Perak rivers, Pulau Sembilan, Pulau Jarak, the estuaries of the Dinding, Matang and Gula rivers, southern Penang and Pulau Perak. Samples were collected from the surface to 1.5-2.0 m depth from a total of 18 stations located along the straits. The samples were analyzed for concentrations of a range of persistent organic polycyclic aromatics hydrocarbons