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Microplastic Abundance in Sediment in Pangandaran Waters, West Java, Indonesia

100%
Yuliadi L. P. S., Nurruhwati I., Astuty S.
World News of Natural Sciences
|
2023
|
vol. 51
10-22
EN
Rapid development in the tourism sector of Pangandaraan raises various problems such as environmental degradation, environmental pollution and waste problems. Microplastic pollution in the oceans is a type of hazardous waste, with microscopic plastic particles less than 5 mm in size. Generally, easy-to-find microplastics include fragments, films, and fibers. Microplastic abundances are found in deep sea areas similar to those in the intertidal area. The purpose of this research is to know the microplastic composition which is sedimentation in various types of sediments and the factors that influence the changes to the microplastic sedimentation in the Pangandaran waters. This research uses the survey method. The most common microplastic particles in station 2 were 12.622 particles (fibers and fragments) and the lowest was found in station 4 of 1.809 particles (fiber, fragment and film). The highest number of microplastic particles trapped in mesh size sediment between 106 µm – 250 µm. Current, waves and tides are factors that cause microplastic movement in the sea. The distribution of microplastic particles is influenced by oceanography factor, density, shape and size of microplastic.
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Seasonal Distribution of Benthic Foraminifera in Pangandaran Waters, Indonesia

100%
Yuliadi L. P. S., Nurruhwati I., Astuty S.
World News of Natural Sciences
|
2020
|
vol. 29
|
issue 3
225-239
EN
The rapid development of tourism in Pangandaran causes various problems such as environmental degradation, environmental pollution and waste problems. Environmental changes can be detected using the foraminifera community. The reasearch aims to analyze seasonal distribution of foraminifera in Pangandaran waters. This research uses the survey method and descriptive data analysis. Ecological factors (salinity, temperature, sediment, depth, pH, DO, clarity, waves and currents) have affected their distribution. Temperature values ranged between 26 to 30 ºC. Salinity values ranged between 15.6 to 31 ‰. The pH ranged from 5.47 to 8.75. The DO concentration varied between 5.43 and 9.7 ppm. The average clarity of Pangandaran waters in the west season ranges from 56 to 104.5 cm. In Pangandaran waters, the abundance of the Rotaliina sub-order reaches between 75% to 86.5%, Miliolina 11.6% to 19%, and Textulariina 0.05% to 13.4%.
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