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Lead and Copper Concentration in Sediment and Blood Cockle (Anadara granosa) in the Coastal Waters of Panipahan, Rokan Hilir, Riau Province Arnes Arnes; Rifardi Rifardi; Bintal Amin
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): Januari
Publisher : Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.2.1.28-35

Abstract

This research was conducted in March 2020 with the aim of evaluating the heavy metal content of Pb and Cu in sediment and blood cockle (Anadara granosa). The sediment and blood cockle samples were taken from Panipahan coastal waters, Panipahan Village and Teluk Pulai Village, Rokan Hilir Regency, Riau Province. The results of this study showed that the highest content of Pb and Cu in sediments was found in the surrounding area of residential areas (47.4570 µg / g and 104.1320 µg / g), while in blood cockle, the highest content was found around areas far from anthropogenic activity. The Pb content in the sediments did not show a significant effect on the Pb content in blood cockles, as well as the Cu. The results of the calculation of the MPI (Metal Pollution Index) value showed that Panipahan coastal waters are still classified as low pollution level.
Analysis of Total Suspended Solid Distribution and Its Effect To The Fertility of Marine Waters Around Fish Auction Place (TPI) Dumai Nesi Silvia Situmorang; Rifardi Rifardi; Yusni Ikhwan Siregar
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): Januari
Publisher : Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.2.1.36-42

Abstract

This study aims to determine the distribution of total suspended solid concentration (TSS) in the waters around TPI Dumai. Water samples were taken from 12 sampling point from the waters during high and low tides to determine TSS concentration. The concentration of total suspended solids ranges from 60-130 mg/l. The concentration is relatively higher (>80 mg/l) in the area that is close to residential areas and TPI. The highest concentration of total suspended solids was 117 mg/l found in waters with a depth of 1-3 m, while the lowest was 81 mg/l found at the sampling point of 5,9. The distribution of chlorophyll-a concentration is relatively higher around the coast which is around 0.476-0.178 mg/l, and it's lower off the shore which is around 0.080-0.090 mg/l. The chlorophyll-a concentration is lower in waters far from the coast because there is no direct nutrient supply from the land. The regression analysis indicate that Tss and chlorophyll-a has a weak relationship between the two variables relatively weak but they are still affecting each other.