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Jurnal Ilmu Kelautan Spermonde
Number of Followers: 0  Open Access journalISSN (Print) 2460-0156 Published by Hasanuddin University  [4 journals]
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- SENTINEL IMAGE APPLICATION FOR ASSESSMENT OF MACROALGAE CONDITIONS AT BONE
MALAYA, MAKASSAR CITY 2015-2020
Authors: Mayang Nizhar Raj, Muh. Banda Selamat, Yayu A. La Nafie, Nurjannah Nurdin, Supriadi Mashoreng
Pages: 1 - 7
Abstract: This study was aimed to analyze and map the presence and percent cover of macroalgae in Bone Malalaya to determine the condition before and after the construction of the new port, as well as to analyze the distribution of suspended solids loads and environmental parameters and their relationship to changes in macroalgae cover in Bone Malalaya. The image used in this research is sentinel imagery 2A level 2A with the acquisition date of 28 October 2015, 14 July 2018 and 10 December 2020 which was processed using geographic information software to obtain a map of algae cover in Bone Malalaya. Sampling of water and physical parameters at the research location was carried out at 8 sampling stations, while algae sampling stations were carried out at 3 stations and 9 substations. There were no seagrass found in the research location, but algae species of Sargassum sp. With cover changes based on the calculation of image pixels, namely 36.49 Ha in 2015, 26.45 Ha in 2018 and 35.73 Ha in 2020. The highest Total Suspended Solid value at the study site was at station 8 with a value of 33.1 mg/L and the lowest value was at station 1 with a value of 16.3 mg/L. Seagrasses were not found at the research site due to unsupported physical parameters and port activities that interfere with seagrass life. The presence of macroalgae Sargassum sp at the research site is assumed because Sargassum sp has a high tolerance for physical parameters that exceed the quality standards set by the Ministry of Environment in 2004.
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.19864
Issue No: Vol. 8, No. 2 (2022)
- LINKAGES BETWEEN CORAL REEF CONDITIONS WITH THE DISTRIBUTION AND DIVERSITY
OF MEGABENTHIC FAUNA IN THE WATERS OF BARRANGLOMPO ISLAND, MAKASSAR CITY
Authors: Muh. Syahrul, Chair Rani, Khairul Amri
Pages: 8 - 18
Abstract: Coral reefs are the most diverse and complex underwater ecosystems in terms of biodiversity, including megabenthic fauna. Megabenthos is organism with a size of more than 1 cm that lives on the bottom/substrate of waters which includes attached, crawling and burrowing biota on the seabed. The research was conducted using the Line Intercept Transect and Benthos Belt Transect methods. The results of the study of coral conditions showed the percentage of live coral cover with conditions from bad to very good. The bad category was found in the west (24.56%) and south of the island (20.55%). The moderate category was found in the northwest (45.35%) and southwest of the island (30.08%) while the very good category was found in the north (80.68%) and south of the island (75.92%). The megabenthos found at the study site were 26 species from 10 megabenthos classes with densities in each category of coral conditions ranging from 12.11 to 23.51 individual/m². The highest density was found in moderate coral conditions dominated by Polycarpa aurata species and the lowest in very good coral conditions with the highest number of species found in poor coral conditions with 21 species and the lowest in very good conditions with 11 species. The species diversity (H') of megabenthos at the study site is in the low category. The high number of megabenthic species was associated with high dead coral and algae cover while high megabenthic density was associated with high other and abiotic cover in the form of sand substrate.
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.19856
Issue No: Vol. 8, No. 2 (2022)
- RATIO OF CALCIUM CARBONAT WITH CADMIUM AND COPPER IN ALGAE HALIMEDA SP
FROM DIFFERENT POLLUTED ENVIRONMENT
Authors: Muhammad Farid Samawi Farid, Hendra Hasim, Nenni Asriani, Isyanita Isyanita
Pages: 19 - 23
Abstract: Accumulated Cd, and Cu in the algae Halimeda sp at various levels of metal pollution has been done on the islands Laelae, Baranglompo and Karanrang. The aims of research to know accumulation Cd, Cu and their ratio with CaCO3 in algae Halimeda sp at different level water pollution in Spermonde Archipelago. Sample algae Halimeda sp was collected in three location with different level of metal pollution within Spermonde Archipelago, namely Laelae, Barranglompo and Karanrang Islands. The highest concentrations Cd and Cu are found on the island Laelae, followed Baranglompo and Karanrang, showing anthropogenic influence on the level of metal in the algae Halimeda sp. There are differences in the pattern of ratio Cd/Ca and Cu/Ca among samples of algae Halimeda sp due to the influence of external input. Algae Halimeda sp sensitive to the accumulation of heavy metals Cd and Cu. These results prove that the algae Halimeda sp can be used as indicators of heavy metals pollution of Cd and Cu in marine waters
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.21558
Issue No: Vol. 8, No. 2 (2022)
- PRELIMINARY STUDY OF MICRODEBRIS CONTAMINATION IN SEDIMENT FROM THREE
ESTUARIES ON THE PANGKAJENE RIVER
Authors: Nurul Magfirah Sukri, Ambeng Ambeng, Ilham Ilham, Jennyta Dhewi Darmansyah Tanjung, Muhammad Al Anshari, Hedi Kuswanto, Zarlina Zainuddin
Pages: 24 - 27
Abstract: Studies on microdebris contamination in sediments at the estuary of the Pangkajene River were carried out at three stations. This study aims to observe the abundance and characteristics of microdebris in the estuary sediments of the Pangkajene River. The samples of sediment were collected using a core sampler with a diameter of 8 cm. Microdebris was extracted using the flotation method and vacuum filtration system. The particles were observed with a stereomicroscope then classified based on shape (form), size, and color. The number of particles found ranged from 2.83±2.04-4.00±1.87 item/100gr. The analysis of variance (ANOVA) showed p>0.05, therefore the abundance of microdebris between the three stations did not show a significant difference. Microdebris in Fragment form had the highest percentage compared to fibers and granules. Blue and black particles of microdebris were the most common colors. The dominant size of particles was found in the size class <100µm and 100µm-500µm. This preliminary study revealed that the microdebris occurs in the Pangkajene estuary sediments. Currently, we have not classified the types of microdebris found as microplastic, semi-synthetic debris, or natural origin. Therefore, further research is needed to verify particles using an FT-IR Microscope to determine the type of microdebris polymer.
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.21805
Issue No: Vol. 8, No. 2 (2022)
- WATER QUALITY OF SEAWEED CULTIVATION (Eucheuma cottonii) LOCATION IN OLD
TAKALAR, MAPPAKASUNGGU DISTRICT, TAKALAR REGENCY
Authors: St. Madina M, Syafiuddin Syafiuddin, Muh. Farid Samawi, Amir Hamzah Muhiddin, Muh. Hatta Hatta
Pages: 28 - 36
Abstract: This study was aimed to determine the water quality and seaweed growth and the relationship between oceanographic parameters and the growth of seaweed Eucheuma cottonii. This research was carried out from June-July 2021 at a seaweed cultivation location in Old Takalar, Mappakasunggu District, Takalar Regency. The seaweed cultivation method used is the longline method placed at three cultivation sites. Oceanographic parameters of physicochemical waters measured were temperature, salinity, pH, brightness, depth, current velocity, tides, nitrate, phosphate and dissolved oxygen. For the measurement of the growth of E. cottonii seaweed, the absolute growth was measured using One Way Anova analysis to determine differences in seaweed growth at each station of E. cottonii cultivation location. The correlation between oceanographic parameters and the growth of E. cottonii seaweed was analyzed using a correlation test. The results showed that the water quality at the cultivation site was within a reasonable range for seaweed cultivation in Old Takalar. The results of One Way Anova showed that there were significant differences in seaweed growth at each station where E. cottonii was cultivated. The results of the correlation test showed that the oceanographic parameters of the waters were very strongly correlated with the growth of E. cottonii seaweed, namely temperature, brightness, and depth.
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.19770
Issue No: Vol. 8, No. 2 (2022)
- METABOLISM CHARACTERISTICS OF SEAGRASS HALOPHILA SPINULOSA: CARBON DIOXIDE
ABSORPTION RATE IN PHOTOSYNTHESIS AND OXYGEN USE IN RESPIRATION
Authors: Supriadi Mashoreng, Much. Faizal Rahman, Airine Universe Sadlie, Jasminati Nur Tahir
Pages: 37 - 42
Abstract: One of the roles of seagrass is as a carbon sink so its presence in the waters is very important. Each species of seagrass has a different character related to photosynthesis and respiration. The study was conducted to analyze the rate of carbon dioxide uptake in photosynthesis and the rate of oxygen use in respiration of Halophila spinulosa seagrass. The research was conducted in July 2022 in Puntondo Waters, Takalar Regency, South Sulawesi. Seagrasses were taken whole from waters 1 meter deep and then cleaned. The method used to analyze carbondioxide uptake and oxygen use was oxygen changes using clear and dark bottles. Each one shoot of H. spinulos was incubated using a clear and dark glass bottle with a volume of 270 ml. Incubation was carried out at 09.20 WITA (Middle Indonesian Time) - 12.20 WITA at a depth of 50, 100 and 150 cm with 5 replicate bottles at each depth. In addition, incubation of seawater (containing phytoplankton) was also carried out with 5 replicate bottles as a correction. At the beginning of incubation, the dissolved oxygen concentration in the water was measured. After incubation, oxygen was measured in clear and dark bottles. Seagrass leaves that have been used were scanned and analyzed using Image-J software to determine the extent. Seagrass leaves were dried in the oven, then weighed to determine the biomass. The results showed that carbon dioxide uptake per shoot ranged from 0.53 to 0.84 mgCO2/shoot/hour, per biomass 12.98-28.34 mgCO2/g/hour, and per leaf area 0.02-0.05 mgCO2/cm2/hour. The highest rate of carbon dioxide uptake was at a depth of 150 cm, both carbon uptake per shoot, biomass and leaf area. In contrast to the absorption of carbon dioxide, the rate of use of oxygen for respiration is highest at a depth of 50 cm. The use of oxygen per shoot ranged from 0.078-0.157 mgO2/shoot/hour, per leaf biomass 2.227-3.091 mgO2/g/hour and per leaf area 0.006-0.010 mgO2/cm2/hour.
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.23133
Issue No: Vol. 8, No. 2 (2022)
- PROFILE OF NUTRIENT AND WATER FERTILITY LEVEL AT NUSAWIRU PANGANDARAN WEST
JAVA
Authors: Yudi Nurul Ihsan, Yuniarti MS, Fahira Nuril Muflihah, Sheila Zallesa, Kalysta Fellatami, Tri Dewi K Pribadi
Pages: 43 - 49
Abstract: Nutrient is one of the most essential elements in the growth and development of marine ecosystem. The aim for this research is to measure the fertility level of Nusawiru Water in Pangandaran West Java. The method used is survey and laboratory analysis using descriptive comparative method. The method used to estimate the level of fertility in this study is the TSI method. The result indicated that the chemical nutrient profile at Nusawiru consists of Ammonia (NH3), Nitrate (NO3-), Nitrite (NO2-), O-Phosphate (PO4). The total amount of Phosphate and chlorophyl shows that the water in the observation station of waste pond, estuary, delta, and open water are in Ultraoligotrophic status. The limiting factor in the waters of Nusawiru Pangandaran is phosphate, because the ratio of N and P at all observation stations are >12.
PubDate: 2022-11-09
DOI: 10.20956/jiks.v8i2.21514
Issue No: Vol. 8, No. 2 (2022)
