Identification of potentially harmful microalgal species and eutrophication status update in Benoa Bay, Bali, Indonesia

Suteja, Yulianto; Dirgayusa, I Gusti Ngurah Putra; Afdal,; Cordova, Muhammad Reza; Rachman, Arief; Siwi, Wingking Era Rintaka; Takarina, Noverita Dian; Putri, Wike Ayu Eka; Isnaini,; Purwiyanto, Anna Ida Sunaryo

doi:10.1016/j.ocecoaman.2021.105698

Cited by 11 publications

(3 citation statements)

References 108 publications

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“…On the other hand, observation in Benoa Bay itself still showed oligotrophic and mesotrophic indices, although observation on river mouths showed higher trophic indices than in marine water. Furthermore, the study also found abundant (up to 82.5%) potentially harmful algae (Suteja et al 2021).…”

Section: Nitrogen and Phosphorusmentioning

confidence: 64%

Domestic wastewater in Indonesia: generation, characteristics and treatment

WIDYARANI¹,

Wulan²,

Hamidah³

et al. 2022

Environ Sci Pollut Res

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With a 270 million Indonesian population, domestic wastewater is one of the major contributors to wastewater generated from human activities. This review aimed to give an overview of the current state of domestic wastewater generation, characteristics and treatment systems in Indonesia. Overall, grey water quantity in Indonesia was 1 to 4 times higher than black water quantity, while the quantity of untreated grey water was 3 to 6 times higher than untreated black water. Parameters of concern include suspended solids, biochemical oxygen demand, chemical oxygen demand, oil and grease, nitrogen and coliforms. Our analysis shows that grey water can be a significant source of water pollution due to the large quantity and lack of treatment. In addition, black water treatment that relies mainly on on-site treatment is often inadequate due to the lack of quality control for the infrastructure, operation and maintenance. An incentive or penalty scheme to build and ensure the quality of domestic wastewater treatment is required and can be applied at the household, community or central (city) level.

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Section: Nitrogen and Phosphorusmentioning

confidence: 64%

Domestic wastewater in Indonesia: generation, characteristics and treatment

WIDYARANI¹,

Wulan²,

Hamidah³

et al. 2022

Environ Sci Pollut Res

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“…The eutrophic area is found in the coastal zone and the center of the bay (Prismayanti et al 2019). Suteja et al (2021) recently updated the trophic status of Benoa Bay and reported a TRIX of 4.9, thus classifying the location as mesotrophic.…”

Section: Trophic Indexmentioning

confidence: 99%

Deepening Knowledge of Nutrient Dynamics in Coastal Waters

Meirinawati

Wahyudi

2022

AJSTD

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Nutrients are important compounds in waterbodies that regulate primary productivity and phytoplankton growth, the basis of food webs. Increased nutrient concentration has become a serious concern because it causes eutrophication and threatens the sustainability of ecosystems. Eutrophication is the process of nutrient enrichment in water bodies that affects their productivity and decreases water quality. Although information about nutrient distribution, limiting nutrients, and nutrient budgets is important for coastal water management, studies of wide-scale nutrient dynamics in Indonesian waters remain limited. To provide comprehensive data on nutrients, this review summarized the concentrations and compositions of nutrients in coastal waters, compared the limiting nutrients in various coastal waters based on the Redfield ratio, and described the factors affecting nutrient budgets using the database in ScienceDirect and Google Scholar. Curation was performed to summarize the nutrient dynamics in coastal waters. Results showed that nutrient concentration differed in each region due to many factors. Anthropogenic inputs greatly affected nutrients in tropical areas, such as Jakarta Bay (Indonesia). Understanding the quality and characteristics of water can help in managing waterbodies. This study provided knowledge related to nutrient dynamics in Indonesian waters and global biogeochemistry.

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“…marina. Other studies on marine microalgae have been carried out in several regions in Indonesia such as in Tanjung Benoa Bali (Suteja et al 2021), West Coast South of Celebes (Tambaru et al 2021;Tambaru 2022), Simeulue Island (Purbani et al 2021), and Tambrauw sea West Papua (Purbani et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Microalgae diversity in varying habitat characteristics in Pasuruan and Sidoarjo coastal areas, East Java, Indonesia

MAHMUDI,

ARSAD,

FITRIANESIA

et al. 2023

Biodiversitas

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Abstract. Mahmudi M, Arsad S, Fitrianesia F, Ramadhan SF, Arif AR, Savitri FR, Dewinta AA, Ongkosongo AD, Musa M, Lusiana ED. 2023. Microalgae diversity in varying habitat characteristics in Pasuruan and Sidoarjo coastal areas, East Java, Indonesia. Biodiversitas 24: 4418-4426. Microalgae are microscopic eukaryotic organisms which live in various types of habitats. The purpose of this study was to identify the types and the abundance of microalgae in several sub-habitats, namely sediments, mangroves, water columns, and artificial substrates; and to analyze the environmental factors that affect the abundance of microalgae. The research was conducted in several sites in the coastal areas in Pasuruan and Sidoarjo, East Java, Indonesia. A quantitative descriptive method was applied with data collection used a purposive sampling method. Samples were collected using net for planktonic microalgae and using sampling plot for epiphytic and benthic microalgae. The microalgae were grouped using NMDS (non-metric multidimensional scaling) and the relationships between microalgae abundance and water quality parameters were analyzed using CCA (canonical correspondence analysis). The results show that Bacillariophyceae, Cyanophyceae, and Chlorophyceae classes were found in all study sites, but Trebouxiophyceae and Dinophyceae were only found in Pasuruan Beach. The highest abundance of microalgae was found in sediment habitat in Wughoyo Beach, Sidoarjo with 706,605 ind. cm-2. The diversity, the evenness, and the dominance index in both coastal areas ranged from 1.43-2.61; 0.71-0.96; and 0.06-0.27, respectively. Similarity analysis using the NMDS showed that there was no similarity among the three sites, suggesting each site had high microalgal variation. The CCA analysis showed that Bacillariophyceae were found in all sites, indicating its high adaptability. The results of this analysis imply that particular habitat has a unique microalgae diversity, thus preserving diverse habitat types is important.

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Identification of potentially harmful microalgal species and eutrophication status update in Benoa Bay, Bali, Indonesia

Cited by 11 publications

References 108 publications

Domestic wastewater in Indonesia: generation, characteristics and treatment

Domestic wastewater in Indonesia: generation, characteristics and treatment

Deepening Knowledge of Nutrient Dynamics in Coastal Waters

Microalgae diversity in varying habitat characteristics in Pasuruan and Sidoarjo coastal areas, East Java, Indonesia

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