Microbial ecology might serve as new indicator for the influence of green tide on the coastal water quality: Assessment the bioturbation of Ulva prolifera outbreak on bacterial community in coastal waters

Coastal water quality degradation is a global challenge. Marine pollution due to suspended sediments and dissolved matter impacts water colour, biogeochemistry, benthic habitats and eventually human populations that depend on marine resources. In Sarawak (Malaysian Borneo), peatland-draining river discharges containing suspended sediments and dissolved organic carbon influence coastal water quality at multiple locations along the coast. Optical remote sensing is an effective tool to monitor coastal waters over large areas and across remote geographic locations. However, the lack of regional optical measurements and inversion models limits the use of remote sensing observations for water quality monitoring in Sarawak. To overcome this limitation, we have (1) compiled a regional spectral optical library for Sarawak coastal waters, (2) developed a new semi-analytical remote sensing model to estimate suspended sediment and dissolved organic carbon in coastal waters, and (3) demonstrated the application of our remote sensing inversion model on satellite data over Sarawak. Bio-optical data analysis revealed that there is a clear spatial variability in the inherent optical properties of particulate and dissolved matter in Sarawak. Our optical inversion model coupled with the Sarawak spectral optical library performed well in retrieving suspended sediment (bias = 3% and MAE = 5%) and dissolved organic carbon (bias = 3% and MAE = 8%) concentrations. Demonstration products using MODIS Aqua data clearly showed the influence of large rivers such as the Rajang and Lupar in discharging suspended sediments and dissolved organic carbon into coastal waters. The bio-optical parameterisation, optical model, and remote sensing inversion approach detailed here can now help improve monitoring and management of coastal water quality in Sarawak.

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Water quality assessment using water quality index and geographical information system methods in the coastal waters of Andaman Sea, India

Marine Pollution Bulletin ◽

10.1016/j.marpolbul.2015.08.032 ◽

2015 ◽

Vol 100 (1) ◽

pp. 555-561 ◽

Cited By ~ 24

Author(s):

Dilip Kumar Jha ◽

Marimuthu Prashanthi Devi ◽

Rajendran Vidyalakshmi ◽

Balan Brindha ◽

Nambali Valsalan Vinithkumar ◽

...

Keyword(s):

Water Quality ◽

Information System ◽

Quality Assessment ◽

Geographical Information System ◽

Coastal Waters ◽

Water Quality Index ◽

Quality Index ◽

Water Quality Assessment ◽

Andaman Sea ◽

Geographical Information

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Water Quality Assessment of Coastal Waters of Bayabas and Bonbon in Cagayan de Oro City, Philippines

IAMURE International Journal of Marine Ecology ◽

10.7718/iamure.ijme.v1i1.341 ◽

2013 ◽

Vol 1 (1) ◽

Cited By ~ 1

Author(s):

Richie Grace M. Lago

Keyword(s):

Water Quality ◽

Quality Assessment ◽

Coastal Waters ◽

Water Quality Assessment

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Implementation of Trophic Status Index in Brackish Water Quality Assessment of Baltic Coastal Waters

Proceedings of the Latvian Academy of Sciences Section B Natural Exact and Applied Sciences ◽

10.2478/v10046-008-0016-z ◽

2008 ◽

Vol 62 (3) ◽

pp. 115-119 ◽

Cited By ~ 1

Author(s):

Elmīra Boikova ◽

Uldis Botva ◽

Vita Līcīte

Keyword(s):

Water Quality ◽

Baltic Sea ◽

Quality Assessment ◽

Coastal Waters ◽

Brackish Water ◽

Trophic Status ◽

Water Quality Assessment ◽

The Baltic Sea ◽

The Baltic ◽

Status Index

Implementation of Trophic Status Index in Brackish Water Quality Assessment of Baltic Coastal Waters The assessment of the trophic state of marine coastal waters is one of the leading initiatives declared in the European Water Framework Directive (WFD). The Baltic Sea is a semi-enclosed ecosystem which consists of subregions with wide salinity and seasonality gradients. Anthropogenic impact results in eutrophication processes on different scales. Efficient eutrophication control and environmental management in the Baltic Sea, according to WFD, requires a prerequisite of common and sensitive indicators for the European coastal waters including the Baltic Sea. In this article the Trophic Status Index TRIX, recently succcesfully implemented in Mediterranean and Northern European sea coastal waters as a holistic approach indicator, was implemented for the Gulf of Rīga and Latvian Baltic Sea coastal water quality assessment between 1999 and 2005.

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Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment

Water ◽

10.3390/w13202836 ◽

2021 ◽

Vol 13 (20) ◽

pp. 2836

Author(s):

Ivo Pinto ◽

Rita Calisto ◽

Cláudia R. Serra ◽

Olga M. Lage ◽

Sara C. Antunes

Keyword(s):

Water Quality ◽

Bacterial Community ◽

Quality Assessment ◽

Denaturing Gradient Gel Electrophoresis ◽

Water Quality Assessment ◽

Clear Trend ◽

Bacterioplankton Community ◽

Biological Element ◽

Culture Independent ◽

Gradient Gel Electrophoresis

The Water Framework Directive (WFD) is used to evaluate the water quality of aquatic ecosystems. Phytoplankton is the only biological element considered in the reservoirs water quality assessment. In this study, we aimed to assess the use of the bacterioplankton community as an indicator of water quality, using a culture-independent assay (denaturing gradient gel electrophoresis, DGGE). Four Portuguese reservoirs (Miranda, Pocinho, Aguieira and Alqueva) were analysed in four periods (autumn 2018, spring and autumn 2019, and spring 2020). Bacterial total abundance had similar values for Miranda, Pocinho and Aguieira, and generally lower values for Alqueva. Diversity and richness values did not show a clear trend. Negative correlations were observed between some nutrients and the bacterial community. Overall, members of Actinobacteria, Bacteroidetes, Cyanobacteria, Nitrospirae and Proteobacteria were identified in all sampling sites. In Alqueva, no spatial, temporal or water body quality relationships with bacterial community were observed, which may be due to its higher size, low water velocity rate and higher residence times. However, in Miranda, Pocinho and Aguieira, a strong spatial and temporal bacterial community dynamic was observed. Furthermore, the presence of some species (e.g., Acinetobacter sp.) may reflect the poor water quality that was not detected by the WFD approach.

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Sewage-specific enterococcal bacteriophages and multiple water quality parameters for coastal water quality assessment

Water Science & Technology ◽

10.2166/wst.2018.460 ◽

2018 ◽

Vol 79 (5) ◽

pp. 799-807 ◽

Cited By ~ 3

Author(s):

Akechai Kongprajug ◽

Namfon Booncharoen ◽

Kanyaluck Jantakee ◽

Natcha Chyerochana ◽

Skorn Mongkolsuk ◽

...

Keyword(s):

Water Quality ◽

Multivariate Analysis ◽

Coastal Water ◽

Principal Component ◽

Water Quality Assessment ◽

Water Quality Monitoring ◽

Quality Parameters ◽

Quality Monitoring ◽

Biological Parameters ◽

Coastal Water Quality

Abstract Coastal water quality is deteriorating worldwide. Water quality monitoring is therefore essential for public health risk evaluation and the management of water bodies. This study investigated the feasibility of using bacteriophages of Enterococcus faecalis as sewage-specific faecal indicators, together with physicochemical (dissolved oxygen, pH, temperature and total suspended solids) and biological parameters, to assess coastal water quality using multivariate analysis incorporating non-detects. The principal component and cluster analyses demonstrated that coastal water quality was mostly influenced by biological parameters, including Escherichia coli and total coliforms, which were found in all 31 sampling sites, and enterococci, which was found in all but two sampling sites. The enterococcal bacteriophages AIM06 and SR14 were detected in 17 and 18 samples at concentrations up to 1,815 and 2,790 PFU/100 mL, respectively. Both bacteriophages co-presented in approximately 80% of phage-positive samples, and the concentrations at each site were not significantly different. Overall, either bacteriophage could be used to differentiate high- and low-level coastal water pollution, as grouped by cluster analysis. This study is the first to investigate the suitability of sewage-specific bacteriophages of E. faecalis for monitoring coastal water quality and emphasises the importance of a multivariate analysis with non-detects to facilitate coastal water quality monitoring and management.

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