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INDONESIA
Jurnal Ilmu Kelautan Spermonde
Published by Universitas Hasanuddin
ISSN : 24600156     EISSN : 26145049     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
The aims of this journal is to provide a venue for academicians, researchers and practitioners for publishing the original research articles or review articles in the field of Marine Science.
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol 4, No 2 (2018)" : 4 Documents clear
ESTIMATION OF IMPACT RADIUS OF THE COAL PLANT STACK EMISSION USING AERMOD MODEL Assegaf, Alimuddin H. Assegaf; Samad, Wasir
Jurnal Ilmu Kelautan SPERMONDE Vol 4, No 2 (2018)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i2.7074

Abstract

In environmental impact assessment of coal plant, it is essential to determine the radius impact. This information can be used to determine the impacted area, which will significantly receive the pollution emitted from the stack for years. In this study, we use the American Meteorological Society - Environmental Protection Agency Regulatory Model (AERMOD) model, which is a regulated model in the USA and other countries. Five years hourly meteorological data for feeding AERMET model was obtained from MM5 re-analysis data. Terrain data was extracted from the SRTM30 satellite image and converted into DEM. The parameter to be considered in this study is Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), and Total Suspended Particle (TSP). The calculation shows that the pollutions tend to disperse in the south direction by the wind direction. NO2 is more disperse than SO2 and TSP.  Calculation of impact radius indicates that concentration of all pollutants in annual average is below the national standard. For the case of the highest one hour average gives the radius impact of 18 km for NO2 and 9 km for SO2.  For the case of the highest 24 hours, only NO2 gives value beyond the standard with an impact radius of 4.5 km.  Calculation of TSP indicates that concentration is below the standard in all cases. The maximum concentration of all pollutants is detected 3 km south of the stack.
CONDITION OF CORAL REEF, SEAGRASS AND MANGROVE IN TOURISM GARDEN OF TIWORO STRAIT, WEST MUNA REGENCY, SOUTHEAST SULAWESI Hamsir, Muh; furkan, Al; Izas, Fajar; Agam, Adiyaat Ridho; Jaya, Fitra
Jurnal Ilmu Kelautan SPERMONDE Vol 4, No 2 (2018)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i2.7064

Abstract

The biodiversity of the Tiworo Strait Conservation Area (KKLD) was highly potential to be developed. However, in recent years, potential utilization has begun to lead to environmental destruction due to the use of destructive fishing gear. Therefore, biophysical studies were needed to give an overview and outlook about the area in order to provide information on the condition of coral reefs, reef fish, mangrove, sea grass, scare/endemic biota and socioeconomic conditions as well as the cause of aquatic ecosystems destruction. The method used to collect the data in the field is by undertaking observation, interview, and literature study method. Observation of coral cover and benthos used was by Point Intercept Transect (PIT) method while for the reef fish, the method used was a visual water census (UVC). Quadratic transect method was used for observation of sea grass and mangrove ecosystem. Meanwhile, the socio-economic condition is done by interview survey technique. The observation result shows the coral condition of the Tiworo Straits KKLD was in the medium category with the mean percentage of live coral of 46%. The lowest percentage of live coral was located at Station 1 of Mandike Island (18%), and the highest was at the Indo Island Station (76%), which is categorized as very good. The number of individual reef fish is 1.217 individuals / m2, and benthos type that dominates was sea urchin. The highest density of mangrove trees was 4000 trees/ha and the lowest was 200 trees/ha. The types of sea grasses observed were Thallasia hemprichi and Ehalus acroides. People, in general, have a livelihood as a fisherman with gill net fishing gear and fishing platform.
BEACH DEBRIS ON LABUANGE BEACH, BARRU DISTRICT, SOUTH SULAWESI PROVINCE, INDONESIA Isyrini, Rantih; Tambaru, Rahmadi; La Nafie, Yayu A.; Ukkas, Marzuki; Cordova, Muhammad Reza
Jurnal Ilmu Kelautan SPERMONDE Vol 4, No 2 (2018)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i2.7066

Abstract

To support the efforts of the Indonesian government in managing marine debris that has a broad potential negative impact in various aspects, beach debris monitoring activities are urgently required in various locations. This research was carried out from June to August 2018 in the west coast region, on Labuange beach, Barru Regency, South Sulawesi Province, Indonesia, which was exposed by the Indonesian Through-Flow. The study aimed to determine the amount, weight and composition of marine debris on Labuange beach.  Marine debris was sampled from a permanent line transect with an area of 150 m2 (three replications). Samples were then cleaned, sorted, counted, and weighed. The average amount of marine debris was 5.98 + 2.13 items/m2 per month, with a total weight was 138.69 ± 91.32 g/m2 per month. Plastic and rubber category dominated every sampling period in the location. The abundance of marine debris, both regarding quantity and weight, fluctuated in high amount during the sampling period, which indicated the magnitude of the role of oceanographic factors, including the direction of waves, and lack of community awareness on marine debris impacts and management. The great amount and weight of marine debris and the type of waste, which was dominated by plastic and rubber is a potential threat to humans, marine biota, and the local or global environment.
ACUTE TOXICITY OF CADMIUM (Cd) TO VELIGER LARVAE OF FLUTED GIANT CLAM (Tridacna squamosa LAMARCK, 1819) Werorilangi, Shinta; Afdal, Muh.; Niartiningsih, Andi; Yusuf, Syafyuddin; Massiani, Arniati; Rastina, Rastina
Jurnal Ilmu Kelautan SPERMONDE Vol 4, No 2 (2018)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i2.7067

Abstract

Clams have a planktonic period which is sensitive to metal pollutants in the waters. The natural concentration of cadmium (Cd) is relatively low in marine waters but may increase with increasing anthropogenic activity on land that may be lethal to organisms, especially in the sensitive larval stages. The purpose of this study was to analyze the values of 24h-LC50, NOEC (No Observed Effect Concentration), LOEC (Lowest Observed Effect Concentration) and MATC (Maximum Acceptable Toxicant Concentration) along with the impact of acute Cd toxicity on mortality and morphological changes of Tridacna squamosa veliger. The toxicity test used was an acute toxicity test with a static method (4 replications). Acute toxicity tests were performed on veliger phase larvae with short-term exposure (24 hours) on various Cd concentrations ie., 0.1 mg/L, 1 mg/L, 2.5 mg/L, 5 mg/L and 10 mg/L . The 24h-LC50 value was calculated using the Trimmed Spearman-Karber application version 4.1, and the LOEC and NOEC values were analyzed using the Dunnet test. Results showed that the 24h-LC50 value of Cd applied to Tridacna squamosa veliger was 2.12 mg/L, whereas the NOEC, LOEC, and MATC values were 1 mg/L, 2.5 mg/L, 1.581 mg/L respectively.  Mortalities were observed with increasing Cd concentrations. It was also shown a decreasing number of zooxanthellae, damaged in mantle tissue and shells, changes in shell color, released of mantle tissue from the shell with increasing Cd concentrations.

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