Marina Chimica Acta

CHARACTERISTICS AND SEDIMENT DISTRIBUTION OF COASTAL MAMUJU DISTRICT

2020-02-03T02:52:49+00:00

This study aims to determine the basic sedimentary profile and distribution of TSS in the coastal areas of Mamuju Regency. The research method used a case study with data collection using field survey tec hniques and sample testing in the laboratory. The data was then analyzed descriptively using tabulation techniques and making sediment distribution maps. The results showed that sediment at the study site was dominated by coarse sand with a total organic matter content (BOT) of 1.59 mg / L which was still below the quality standard (<10 mg / L) but the TSS concentration at water bodies of 26.80 mg / L have passed the quality standard for coral reef and seagrass ecosystems (20 mg / L)

THE EXISTENCE OF PLASTIC WASTE MANAGEMENT IN THE SEA ENVIRONMENT SEEN FROM CHEMICAL SCIENCE ANGLE

2020-02-03T02:52:49+00:00

Plastic waste from year to year in the marine environment continues to increase. This is due to its wide application and its resistance to degradation making it difficult or impossible to decompose. Plastic waste has been found in various sizes and accumulated in the body of marine life. The existence of plastic waste in the body of the marine biota even causes death. This review discusses the latest advances in research and development of methods for handling plastic waste in the marine environment.

EVALUATION OF THE BRINE PRESERVATION METHOD OF SEA GRAPES (Caulerpa lentillifera) AS A COMMERCIAL PRODUCT

2020-02-03T02:52:49+00:00

The aim of this study is to evaluate this commercial product in relation to the preservation materials, the preserved product biomass, individual weight and length of the fronds, and the effect of soaking time and water temperatures on the frond “crispiness”. There was no significant difference between different soaking times (from 30s to 2 minutes) on the weight and the length of the fronds ANOVA (p=0.88) and (p=0.81) after the initial period. Furthermore, tap water and ice water treatments during rehydration process had no significant effect on the fronds crispiness (ANOVA p=0.560). These results show that the preserved product using high concentration of brine produces a product with consistent biomass, size, and amount of the fronds. However, the temperature of the freshwater used in rehydration has no effect on the quality of the product, in contrast to the claims made by the company on the packaging instructions

CHARACTERIZATION OF SEA GRAPES (Caulerpa lentillifera) FROM VIETNAMESE COMPANY’S PRODUCTS

2020-02-03T02:52:49+00:00

Species of sea grapes (Caulerpa spp.) are consumed broadly in many regions such as in Southeast Asia and Pacific areas. However, it damages easily if packed incorrectly and may only last for couple of days. A company in Vietnam (Tritin Pty Ltd) has developed a preservation technique for sea grapes that enables export to many countries. The aim of this study is to characterization of the Vietnamese company’s product of Caulerpa. The study found that the product based on a 10% brine concentration (114.33 g/L ±2.30 SD). The average weight of each sachet package is 22.47 g ±0.37 containing 65 fronds of Caulerpa lentillifera. The average weight and length of the fronds is 0.73 g ±2.30 SD and 7.27 cm ±1.59 SD. There was a significant relationship between the weight and the length of the fronds during the rehydration process in freshwater (R²=0.35, p<0.01), with rehydration of weight and length complete after x seconds

PLANKTON ABUNDANCE BETWEEN DRY AND RAINY SEASON IN TALLO FRESHWATER AND PANGKEP RIVER

2020-02-03T02:52:49+00:00

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