Abstract:
:Rapid urban and coastal developments often witness deterioration of regional seawater quality. As part of the management process, it is important to assess the baseline characteristics of the marine environment so that sustainable development can be pursued. In this study, artificial neural networks (ANNs) were used to predict and forecast quantitative characteristics of water bodies. The true power and advantage of this method lie in its ability to (1) represent both linear and non-linear relationships and (2) learn these relationships directly from the data being modeled. The study focuses on Singapore coastal waters. The ANN model is built for quick assessment and forecasting of selected water quality variables at any location in the domain of interest. Respective variables measured at other locations serve as the input parameters. The variables of interest are salinity, temperature, dissolved oxygen, and chlorophyll-alpha. A time lag up to 2Delta(t) appeared to suffice to yield good simulation results. To validate the performance of the trained ANN, it was applied to an unseen data set from a station in the region. The results show the ANN's great potential to simulate water quality variables. Simulation accuracy, measured in the Nash-Sutcliffe coefficient of efficiency (R(2)), ranged from 0.8 to 0.9 for the training and overfitting test data. Thus, a trained ANN model may potentially provide simulated values for desired locations at which measured data are unavailable yet required for water quality models.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Palani S,Liong SY,Tkalich Pdoi
10.1016/j.marpolbul.2008.05.021subject
Has Abstractpub_date
2008-09-01 00:00:00pages
1586-97issue
9eissn
0025-326Xissn
1879-3363pii
S0025-326X(08)00319-6journal_volume
56pub_type
杂志文章abstract::We present results of a preliminary geochemical assessment of Cd, Pb, V, As, Ni, Cu, Zn, Mg, Al, K, Ca, and Fe in marine sediments from the Eastern Equatorial Atlantic, off the Coast of Ghana. Samples were taken along 4 regions G1, G2, G3 and G4 at approximately 25m, 100m, and 250m, 500m and 1000m depths. Elemental co...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2015.06.044
更新日期:2015-09-15 00:00:00
abstract::Polybrominated diphenyl ethers (PBDEs) are now found ubiquitously in the aquatic environment and biota, and there is a growing concern that PBDEs may disrupt endocrine systems, leading to reproductive impairments of aquatic animals. In our study, zebrafish (Danio rerio) were exposed to the 5 ng/L, 1 μg/L and 50 μg/L o...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2011.04.001
更新日期:2011-01-01 00:00:00
abstract::The application of 'booster biocides' Diuron, Tolylfluanid and Copper thiocyanate inbantifouling paints, used to prevent development of biofouling, needs to be monitored before assessing their impacts on the environment. An alternative approach aims to propose eco-friendly and effective antifoulants isolated from mari...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2012.06.028
更新日期:2012-10-01 00:00:00
abstract::Cystoseira amentacea is a Mediterranean endemic alga thriving on very shallow rocky substrates. It has been considered as a threatened species, having experienced a steady decline and is therefore protected by international conventions. The historical distribution of the species has been assessed along the French Medi...
journal_title:Marine pollution bulletin
pub_type: 历史文章,杂志文章
doi:10.1016/j.marpolbul.2014.09.043
更新日期:2014-12-15 00:00:00
abstract::In this study, the bacterial and archaeal communities along with their functions of activated sludge from three wastewater treatment plants were investigated by Illumina MiSeq Platform. The treatment processes were modified A/A/O, DE oxidation ditch and pre-anaerobic carrousel oxidation ditch, respectively. The taxono...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2018.08.010
更新日期:2018-10-01 00:00:00
abstract::The Eastern Arabian Sea (EAS) is affected by oil pollution, as often evidenced by the presence of tarballs along the West Coast of India (WCI). Tarball samples collected during May 2017 along the Goa coast were subject to biomarker fingerprints, and the results matched with Bombay High (BH) oil fingerprints. The prese...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2019.07.015
更新日期:2019-09-01 00:00:00
abstract::The inner 1/3 of Isahaya Bay which is a tributary of Ariake Sea in Japan was shut off from the sea by a dike for the reclamation and disaster prevention in 1997. On the other hand, several environmental and fisheries problems occurred in Ariake Sea after 1990s. Some fishermen insisted that the major reason for the dec...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2015.10.017
更新日期:2016-01-30 00:00:00
abstract::Bunker C, one of the most frequently spilled petroleum products in the US, is difficult to remove from oiled surfaces and is relatively recalcitrant to biodegradation; therefore, emulsification and biodegradability must be optimized before bioremediation can be considered a viable treatment option. Sand from a freshly...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/s0025-326x(00)00222-8
更新日期:2001-09-01 00:00:00
abstract::Shipping is key to global trade, but is also a dominant source of anthropogenic noise in the ocean. Chronic noise from ships can affect acoustic quality of important whale habitats. Noise from ships has been identified as one of three main stressors-in addition to contaminants, and lack of Chinook salmon prey-in the r...
journal_title:Marine pollution bulletin
pub_type: 杂志文章,评审
doi:10.1016/j.marpolbul.2018.05.015
更新日期:2019-02-01 00:00:00
abstract::Marinas have ceased to be ports dedicated exclusively to recreational boating and nautical sports. Nowadays, marinas offer a variety of services that complement the tourist offering of its locality in addition to auxiliary activities that arise from its main activity. There are considerable economic and social resourc...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2021.112035
更新日期:2021-01-27 00:00:00
abstract::Efforts to curb pollution in the marine environment are covered by national and international legislation, yet weather balloons are released into the environment with no salvage agenda. Here, we assess impacts associated with weather balloons in the Great Barrier Reef World Heritage Area (GBRWHA). We use modeling to a...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2013.12.047
更新日期:2014-02-15 00:00:00
abstract::Benthic foraminifera are sensitive to environmental changes and widely used as tools to monitor pollution. Rising numbers of deformed tests are often used as indicator for elevated levels of heavy metals, but little is known about the relation between heavy metal incorporation into foraminiferal tests and the formatio...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2020.111112
更新日期:2020-06-01 00:00:00
abstract::Seagrass ecosystems are diminishing worldwide and repeated studies confirm a lack of appreciation for the value of these systems. In order to highlight their value we provide the first discussion of seagrass meadows as a coupled social-ecological system on a global scale. We consider the impact of a declining resource...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2013.06.001
更新日期:2014-06-30 00:00:00
abstract::The performance of oil spill models is strongly influenced by multiple parameters. In this study, we explored the ability of a genetic algorithm (GA) to determine optimal parameters without the need for time-consuming manual attempts. An evaluation function integrating the percentage of coincidence between the predict...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2018.07.026
更新日期:2018-10-01 00:00:00
abstract::This work developed a new method to determine concentration of Corexit EC9500A, and likely other oil dispersants, in seawater. Based on the principle that oil dispersants decrease surface tension, a linear correlation was established between the dispersant concentration and surface tension. Thus, the dispersant concen...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2016.06.028
更新日期:2016-08-15 00:00:00
abstract::Compared to open sea environments, there is still limited knowledge about microplastic levels in semi-enclosed systems such as coastal lagoons. This work aims to assess the levels of MPs in the waters of an urban lagoon (Bizerte lagoon, northern Tunisia) and to study the effects of environmental factors on their distr...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2020.111625
更新日期:2020-11-01 00:00:00
abstract::The role of a yellow-legged gull (Larus michahellis) small colony in conveying trace elements (As, Cd, Cr, Cu, Ni, Pb, THg, V, Zn) was assessed in a Mediterranean nature reserve (Marinello ponds) at various spatial and temporal scales. Trace element concentrations in guano were high and seasonally variable. In contras...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2013.06.051
更新日期:2013-09-15 00:00:00
abstract::A descriptive study of population structure, growth rates and shell morphometry was conducted on nine intertidal populations of the infaunal bivalve Cerastoderma edule in the Murmansk coast of the Barents Sea. Year-to-year population dynamics was analyzed during 2002-2006 on a tidal flat Dalniy Plaj (eastern Murmansk ...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2010.02.021
更新日期:2010-01-01 00:00:00
abstract::The present study was conducted to investigate the tolerance of Spartina densiflora to phenanthrene, and to test its ability in phenanthrene dissipation. A glasshouse experiment was designed to investigate the effect of phenanthrene from 0 to 1000 mg kg(-1) on growth and photosynthetic apparatus of S. densiflora by me...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2011.05.018
更新日期:2011-08-01 00:00:00
abstract::The long-term data on the temporal and spatial changes of chlorophyll and nutrients concentrations, phytoplankton biomass, primary production and mineralization of organic matter in the Curonian and Vistula Lagoons were analyzed using seasonal data to 1994 and monthly data to 2007 at 9-12 stations. A comparison with h...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2010.02.015
更新日期:2010-01-01 00:00:00
abstract::The particulate material was fractionated into 5 size classes (>90μ, 50-90μ, 6-50μ, 1-6μ, and <1μ). DOP was analysed as easily (DOPh, DOPpa) and less easily hydrolysable compounds (DOPox). Based on Vmax, 94% of the high affinity AP activity was due to <50μ cells and 77% to <1μ cells. 83% of the low affinity activity w...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2016.11.037
更新日期:2017-04-15 00:00:00
abstract::Caffeine has been detected in Boston Harbor seawater with concentrations ranging from 140 to 1600 ng l(-1), and in Massachusetts Bay seawater at concentrations from 5.2 to 71 ng l(-1). Sources of caffeine appear to be anthropogenic with higher concentrations in the seawater of Boston's inner harbor and in freshwater s...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/s0025-326x(00)00176-4
更新日期:2002-05-01 00:00:00
abstract::We have developed a technique for detecting the pixels of colored macro plastic debris (plastic pixels) using photographs taken by a webcam installed on Sodenohama beach, Tobishima Island, Japan. The technique involves generating color references using a uniform color space (CIELUV) to detect plastic pixels and removi...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2012.06.006
更新日期:2012-09-01 00:00:00
abstract::In oiled sandy beaches, unrecovered fuel can be buried up to several metres. This study proposes a theoretical approach to oil burial estimation along the intertidal area. First, our results revealed the existence of two main patterns in seasonal beach profile behaviour. Type A is characterized by intertidal slopes of...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2016.05.052
更新日期:2016-08-15 00:00:00
abstract::Fish farming in coastal areas is a rapidly growing industry. However, unregulated fish farming practices that release massive amounts of unconsumed feed and fecal material into the water column, can result in a nutrient-enriched environment that extends to nearby reef systems. To understand the impact of fish farm eff...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2020.111025
更新日期:2020-04-01 00:00:00
abstract::The Gulf of Kachchh (GoK) is situated in the northeastern Arabian Sea. The presence of several industries along its coastal belt makes GoK a highly sensitive coastal ecosystem. In the present study, an attempt is made for the first time to study GoK thermohaline structure and its variability, based on field measuremen...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2007.01.022
更新日期:2007-06-01 00:00:00
abstract::Selected heavy metals and polycyclic aromatic hydrocarbons (PAHs) were determined in marine sediment from 28 sites Djibouti city. The concentrations of trace elements varied from 0 to 288.1mg/kg with relative abundance of trace metals in sediments was in the order of Zn>Cu>Ni>Cr>Co>Pb>Cd. Zn, Cu and Ni exceeded consen...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2017.05.055
更新日期:2017-07-15 00:00:00
abstract::A polychaete, Capitella sp. I has been shown to degrade organics actively in organically enriched sediment below fish farms. Our aim of the present study is to enhance the biological treatment of sediment by co-inoculation of Capitella sp. I with bacterial isolates that possess high degrading potential for organic mat...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2007.10.004
更新日期:2008-01-01 00:00:00
abstract::Baseline concentration of strontium and Sr-90 in Gulf is presented. The strontium concentration is much higher than reported for other oceanic waters, while the Sr-90 concentration is low at 0.7-1.0 mBq l(-1), that represents the background level following nuclear tests and can be used as an effective tracer in case o...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2013.06.042
更新日期:2013-10-15 00:00:00
abstract::In this work, two field campaigns were performed in July 2008 (wet season) and March 2009 (dry season) to produce original data on the concentration, partition and distribution of mercury and butyltin compounds along the tropical Bach Dang Estuary located in North Vietnam (Haiphong, Red River Delta). The results demon...
journal_title:Marine pollution bulletin
pub_type: 杂志文章
doi:10.1016/j.marpolbul.2012.05.036
更新日期:2012-09-01 00:00:00