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All Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Molekul: Jurnal Ilmiah Kimia
Shinta Werorilangi
Hasanuddin University
Chemical Engineering, Chemistry & Bioengineering Chemistry

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Interactions Between Environmental Factors and Zinc Concentrations in Porewater and Roots of Rhizophora sp. in Ampallas, Mamuju, West Sulawesi, Indonesia Rantih Isyrini; Shinta Werorilangi; Supriadi Mashoreng; Ahmad Faizal; Rastina Rachim; Akbar Tahir
Molekul Vol 13, No 1 (2018)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (314.762 KB) | DOI: 10.20884/1.jm.2018.13.1.380

Abstract

The study was to determine the concentrations of Zn in porewater and fine roots of Rhizophora sp., and to examine their interactions with mangrove densities and physico-chemical. Porewater samples, fine roots,  and sediments were collected in a 100 m2 plot at each site with different mangrove densities. The average Zn concentrations in mangrove roots in the study area were 0 – 58.21 mg/kg, suggested the capability of mangrove roots in retaining Zn. The average dissolved Zn concentrations in porewater were 0.63 mg/L – 3.50 mg/L, illustrated the amount of Zn bioavailable form and its potential release to the adjacent environment. The Zn concentrations in porewater did not correlate significantly with the densities of mangroves. The concentrations of Zn in roots increased as the densities were higher, which is possibly caused by the absence of mangrove at Site 1. The study discovered the important roles of organic content and silt/clay in Zn sorption thus affect Zn levels in porewater. The concentrations of Zn in mangrove roots increased as the pH of sediment and porewater decreased.
Oseanographic Conditions of Grenn Mussel Cultivation (Perna viridis) Using Multilevel Plastic Baskets Method in Salemo Island Waters, Pangkep Regency, Indonesia Muhammad Farid Samawi; Abd. Rasyid Jalil; Shinta Werorilangi
Jurnal Kelautan Vol 16, No 2: Agustus (2023)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v16i2.17382

Abstract

ABSTRACTCultivation of green mussels (Perna viridis) using multilevel plastic baskets has been carried out in the waters of Salemo Island, Pangkep Regency, Indonesia. The purpose of this study was to determine the oceanographic parameters that affect mussel cultivation at different water depths. The research treatment was placement on the surface and bottom of the waters (five meters deep) with different stocking densities. Green mussel cultivation is carried out for 4 months, namely May, June, July and August. Measurement of oceanographic parameters was carried out every month during green mussel cultivation, in situ, namely temperature, turbidity, salinity, pH, DO and those analyzed in the laboratory, namely TSS, TOM, Nitrate, Phosphate and the composition and abundance of plankton. Growth measurements of green mussels were also carried out, namely absolute weight and survival (SR). The results showed that the condition of oceanographic parameters differed between the surface and bottom waters, especially the parameters of TSS, turbidity, TOM, nutrients and plankton abundance. This situation is related to the absolute growth value and SR of mussels at different stocking densities and depths.Keywords: Oceanographic, green mussels, multilevel baskets, absolute growth, Salemo
Co-Authors Abd. Rasyid Jalil Ahmad Faizal Akbar Tahir Muhammad Farid Samawi Rantih Isyrini Rastina Rastina Supriadi -