Change in Species Composition and Its Implication on Climate Variation in Bali Strait: Case Study in 2006 and 2010

Sartimbul, Aida; Rohadi, Erfan; Yona, Defri; Yuli, H Endang; Sambah, Abu Bakar; Arleston, Jogi

doi:10.17501/icfa.2016.3101

Cited by 4 publications

(5 citation statements)

References 4 publications

(2 reference statements)

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“…While, yellow-red colour showed about 0.5 to 1.5˚C SST increasing above eleven years average. During IOD (+) (2006) there were more intensive upwelling in South Java as indicated by lower SST (reached -1.0˚C), and vice versa for IOD (-) (2010) SST remain higher (reached +1.5˚C) due to lack of upwelling as mentioned by (2) (4) and (5).…”

Section: Time Series Of Sst Anomaly and Indian Ocean Dipole (Iod)mentioning

confidence: 93%

“…The South Java Sea are areas that are directly adjacent to the Indian Ocean and are potential fishing grounds due to the presence of upwelling in these waters. The dynamics of the waters of the South Java are strongly influenced by global climate phenomena such as the Indian Ocean Dipole as explained by (2), (4) and (5). A total of 11 (eleven) years of Sea Surface Temperature (SST) data with monthly intervals from Satellite Aqua-MODIS level 3 data obtained from the official website oceancolor.gsfc.nasa.gov.…”

Section: Methodsmentioning

confidence: 99%

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Anomaly technique for expression the Indian Ocean Dipole in South Java Sea

Sartimbul¹,

Rohadi²,

Ali³

et al. 2018

IJET

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The longer period of time series of anomaly data was usually used to express the climatic phenomena. Even it is common, however, there were limited study discusses how powerful anomaly technique for understanding the climatic phenomena that occur in the period of time. The objective of this study is to understand the nature of anomaly, to identify an unusual fluctuation of data, and to detect the climate change impact to the Sea Surface Temperature (SST). The eleven years satellite Aqua Modis data and Dipole Mode Index were applied to this study. The raw data were averaged and removed seasonal trend using anomaly technique and then plotted to both MS Excel and Surfer ver. 6. The result shows that the monthly average of SST was indicated a seasonal/ sinusoidal pattern. Furthermore, anomaly analysis provides an unusual SST trend that has a direct impact on the climatic phenomenon as Indian Ocean Dipole. It is suggested that an anomaly technique may provide a good tool for expression unusual phenomena due to climate change.

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Section: Time Series Of Sst Anomaly and Indian Ocean Dipole (Iod)mentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Anomaly technique for expression the Indian Ocean Dipole in South Java Sea

Sartimbul¹,

Rohadi²,

Ali³

et al. 2018

IJET

Self Cite

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“…Bali Straits is already well known as a small pelagic ecosystem and Bali Sardinella (Sardinella lemuru) habitat [6]. The S. lemuru catches contribute up to 80-90% of the total production of pelagic fisheries [16]. The abundance of S. lemuru relies on the plankton variability and distribution [4], [5].…”

Section: Study Sitementioning

confidence: 99%

Phytoplankton responds to environmental variables in Bali Straits, Indonesia

Susilo,

Tito

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The ecological significance of phytoplankton within the small pelagic ecosystem cannot be overstated, as it serves as a vital food source for various marine biota, including larvae, juveniles, and small pelagic fish. This study marks the first investigation in the Bali Straits concerning the relationship between phytoplankton abundance and in situ environmental variables, employing an innovative additive model to develop a predictive system. The primary objective of this research is to elucidate the impact of environmental variables on phytoplankton abundance in the Bali Straits. During the year 2013, time series plankton samples and corresponding environmental variables, such as pH, nitrate (NO3), phosphate (PO4), chlorophyll-a (Chl), and silica (SiO3), were collected. Utilizing stepwise generalized additive models (GAMs), we assessed the response of two major phytoplankton groups, namely diatoms and dinoflagellates, to the prevailing environmental variability. Our findings unveil distinct response patterns for each group, with diatoms displaying a deviance explained (DE) of 38.40%, and dinoflagellates with 35.5%. Notably, both groups exhibited significant responses to NO3 and SiO3, while pH solely exerted a significant impact on dinoflagellates. In contrast, PO4 and Chl displayed comparatively lower influence on the abundance of both phytoplankton groups. This study contributes to a deeper understanding of the ecological dynamics in the Bali Straits and enhances our predictive capabilities in this critical marine ecosystem.

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“…The current global climate change is indicated by the tendency of increasing atmospheric temperature and greenhouse gas emissions [8] and the impact on terrestrial and aquatic ecosystems, including marine IOP Publishing doi:10.1088/1755-1315/1163/1/012001 2 ecosystems [9]. According to [10], temperature is the most important physical component of saltwater and plays a significant part in the process of determining the global climate.…”

Section: Introductionmentioning

confidence: 99%

Changes in pH associated with temperature and salinity in the Banda Sea

Rugebregt,

Opier,

Abdul

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Changes in pH can impact the biogeochemical processes of the ocean. Several variables, like temperature and salinity, can influence pH levels. This research aims to determine the relationship between pH, temperature, and the salinity of the Banda Sea. The Banda Sea lies in the path of The Indonesian Throughflow (ITF), so temperature and salinity dynamics occur. Research is carried out in the Banda Sea in July 2022 at 5 (five) stations with multiple levels of depth. The measured parameter is the pH clicking using a pH meter, while the temperature and salinity using the Conductivity Temperature Depth (CTD). The results obtained are the pH of the waters ranging from 7.3-7.8 with an average of 7.55. The temperature went from 4.76-27.34°C with an average water temperature of 16.98°C, where the lowest temperature was at 1000 meters. Salinity ranged from 33.19-34.98 PSU with an average of 34.46 PSU. pH and temperature were correlated at 0.892, meaning that temperature significantly affects changes in pH in the waters of the Banda Sea. The correlation between pH and salinity was 0.314, which means that salinity also involves changes in pH in the Banda Sea.

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Change in Species Composition and Its Implication on Climate Variation in Bali Strait: Case Study in 2006 and 2010

Cited by 4 publications

References 4 publications

Anomaly technique for expression the Indian Ocean Dipole in South Java Sea

Anomaly technique for expression the Indian Ocean Dipole in South Java Sea

Phytoplankton responds to environmental variables in Bali Straits, Indonesia

Changes in pH associated with temperature and salinity in the Banda Sea

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