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Influence of Rainfall Intensity Towards Macrozoobenthos Community Structure in Ciletuh Bay Regency of Sukabumi District, West Java, Indonesia

100%
Nasrudin C. A., Yuniarti Y., Ihsan Y. N., Syamsudin M. L.
World News of Natural Sciences
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2020
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vol. 28
142-154
EN
The purpose of the study undertaken between May 2018 and April 2019 is to determine the effect of rain water intensity on the value of macrozoobenthos structures in Ciletuh Bay. The data used in this research and directly taken from the research site are seawater quality parameters, analysis of sample granulometry and identification of the sample macrzoobenthos, while all data processing was conducted in the laboratory. The method used in this study was purposive sampling. The result of this research in sand type sediment texture brought a count of 96 macrozoobenthos individuals. In contrast, the count was only 7 in silt type sediments. The study concluded that the effect of varied rainfall intensity impacts the water quality parameters that caused the difference types of sediment in Ciletuh Bay.
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Analysis of Shoreline Changes in the Coastal Area of Kuala Terengganu, Malaysia

76%
Subiyanto S., Ahmad A., Mamat M., Ihsan Y. N., Afrianto E., Hidayat Y., Supian S.
World News of Natural Sciences
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2020
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vol. 28
24-33
EN
The analysis of shoreline change trends is fundamental to a broad range of investigations undertaken by coastal scientists, coastal engineers, and coastal managers, as well as the government, in this case, the coastal development policy-maker. In order to know the changing of shoreline position around the coastal area of Kuala Terengganu, an analysis and then simulation of shoreline change was performed over, respectively, 2 years, 3 years and 4 years. In this simulation, the longshore distance was divided into 87 cells of length 34 m. Shoreline positions from satellite imagery in 2010 were used in this simulation as the initial condition. Based on the numerical result, both erosion (north side) and accretion (south side) occurred around the Sultan Mahmud Airport, Kuala Terengganu. The average erosion and accretion during the 4 year period is 42.93 m and 40.89 m, respectively.
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