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All Journal MARINA CHIMICA ACTA
Alfian Noor
Chemistry Department, Faculty of Mathematics and Natural Sciences, Hasanuddin University
Biochemistry, Genetics & Molecular Biology

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ANALYSIS ACTIVITY 14C OF CORAL REEF IN KAYANGAN ISLAND Nur Faiizah Firman; Alfian Noor; Muhammad Zakir; Maming Gaffar; Syafyuddin Yusuf
Marina Chimica Acta Vol. 19 No. 2 (2018): Volume 19, No. 2 (2018)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.668 KB) | DOI: 10.20956/mca.v19i2.5392

Abstract

The work is to determine absorption capacity, optimum time analysis, efficiency enumeration (TDCR), specific activityof 14C and coral age. Steps taken are physical and chemical washing, CO2 absorption, and analysis using liquid scintillation counter Hidex 300 SL. Due to washing, the weight loss was 4.74%. Total carbon absorbed was 1,056 grams. CO2 absorption capacity using KOH was 47% while optimum time analysis by LSC was 30 minutes and average efficiency enumeration (TDCR) was 0.6877.  It was concluded that specific activityof 14C was 14.7361 DPM/gC and coral age in Kayangan Island was 310.49 years.
PLANKTON ABUNDANCE BETWEEN DRY AND RAINY SEASON IN TALLO FRESHWATER AND PANGKEP RIVER Rakhmad Armus; Alfian Noor; Ahyar Ahmad; Muhammad Lukman
Marina Chimica Acta Vol. 20 No. 2 (2019): Volume 20, No. 2 (2019)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.933 KB) | DOI: 10.20956/mca.v20i2.9271

Abstract

Plankton abundance is influenced by seasons, sea surface currents (SSC), nutrients and surface temperature (SST). Is a marine organism has a function to stabilize the surface temperature of the earth by regulating the concentration of Dimetyl sulfide (DMS) due to exposure to direct sunlight. There is the ability of the ocean to regulate warming and to regulate the distribution of water vapor in the atmosphere which is controlled by sea surface temperature. Sampling using the transeck system in September and January represents the rainy season and the dry season which is closest to the Tallo river estuary and the Pangkep river estuary represents the estuary region, towards the coast of the spermonde (Litoral) islands and far from the coast (offshore) from freshwater sources, but the relationship of nutrient entry into estuary areas by sea surface currents (SSC) is still poorly known. The dominant aspect of phytoplankton is determined by the amount of nutrients flowing (runoff) from land to estuary to spermonde waters
Co-Authors Ahyar Ahmad Armus, Rakhmad Maming Gaffar Muhammad Lukman Muhammad Zakir Nur Faiizah Firman Syafyuddin Yusuf