Fellatami, Kalysta
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PROFILE OF NUTRIENT AND WATER FERTILITY LEVEL AT NUSAWIRU PANGANDARAN WEST JAVA Ihsan, Yudi Nurul; MS, Yuniarti; Muflihah, Fahira Nuril; Zallesa, Sheila; Fellatami, Kalysta; Pribadi, Tri Dewi K
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NUMBER 2, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i2.21514

Abstract

Nutrient is one of the most essential elements in the growth and development of marine ecosystem. The aim for this research is to measure the fertility level of Nusawiru Water in Pangandaran West Java. The method used is survey and laboratory analysis using descriptive comparative method. The method used to estimate the level of fertility in this study is the TSI method. The result indicated that the chemical nutrient profile at Nusawiru consists of Ammonia (NH3), Nitrate (NO3-), Nitrite (NO2-), O-Phosphate (PO4). The total amount of Phosphate and chlorophyl shows that the water in the observation station of waste pond, estuary, delta, and open water are in Ultraoligotrophic status. The limiting factor in the waters of Nusawiru Pangandaran is phosphate, because the ratio of N and P at all observation stations are >12.
The Distribution of heavy metals in Jakarta and Semarang bay during the period of 2016 - 2019 Ihsan, Yudi Nurul; Alfa Zefa, Phobe Nadine; Fellatami, Kalysta; Syamsuddin, Mega Laksmini; Zallesa, Sheila
Depik Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.1.23015

Abstract

Coastal areas have an important role and have high natural resources that can be utilized for human life. Over time, the increase in population is directly proportional to the activities and utilization of coastal areas, which puts great pressure on coastal areas. One of the pressures that occur in coastal areas is heavy pollution. This research aims to see the distribution of heavy metals especially Cd, Cu and Pb in the coastal areas of Jakarta Bay and Semarang Bay and to see the differences in heavy metal content from the two gulfs. The data used in this study is secondary data, which consists of data on heavy metals, current velocity, pH and water temperature. The period of data used in this research are from 2016 to 2019, The method used in this study is the GIS method with descriptive analysis. The comparison of concentrations from two bays shows a higher mean of concentration value of heavy metals cadmium (Cd) in Semarang Bay (2016, 2017, 2019) and heavy metals of copper (Cu) in Jakarta Bay (2016 and 2018). Meanwhile, the concentration value of heavy metal lead (Pb) was higher in Jakarta Bay (2016, 2017, 2018), yet in 2019, the two locations have the same concentration value of heavy metal lead (Pb).Keywords:Coastal areaDistributionHeavy metalsJakarta BaySemarang Bay