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All Journal Torani Journal of Fisheries and Marine Science Jurnal Ilmu Kelautan Spermonde
Amir Hamzah Muhiddin
Department Of Marine Science, Faculty Of Marine Science And Fisheries, Hasanuddin University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science Social Sciences

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WATER QUALITY OF SEAWEED CULTIVATION (Eucheuma cottonii) LOCATION IN OLD TAKALAR, MAPPAKASUNGGU DISTRICT, TAKALAR REGENCY M, St. Madina; Syafiuddin, Syafiuddin; Samawi, Muh. Farid; Muhiddin, Amir Hamzah; Hatta, Muh.
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NUMBER 2, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i2.19770

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.
DISTRIBUTION OF BOTTOM SEDIMENT BEFORE AND AFTER RECLAMATION AT CENTER POINT OF INDONESIA (CPI) MAKASSAR CITY Maulana, Firly; Muhiddin, Amir Hamzah; Lanuru, Mahatma; Samad, Wasir; Ukkas, Marzuki
Jurnal Ilmu Kelautan SPERMONDE VOLUME 9 NUMBER 1, 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v9i1.19929

Abstract

Characteristics and distribution of bottom sediment is one of the important parameters in determining the management plan and land use in coastal areas. The purpose of this study was to determine the condition of the distribution of bottom sediments and to compare the changes that occurred in the distribution of bottom sediment before and after the reclamation of the Center Point of Indonesia (CPI) in Makassar City. Sediment sampling was carried out using a grab sampler at four stations, namely stastions on the island adjacent to the reclamation area and two other stations in the water around the reclamation area. The results showed that the bottom sediment in the waters around the reclamation area consisted of coarse sand and medium sand with an organic matter content of 14.92% in the sediment. On the islands adjacent to the reclamation area, the bottom sediments are move varied, consisting of coarse sand, medium sand and fine sand with lower organic matter content of 4.92% to 5.38%.
CALENDAR FOR PLANTING SEAWEED EUCHEUMA SP. IN MALLASORO BAY, JENEPONTO DISTRICT, BASED ON LANDSAT-8 IMAGES Amran, Muhammad Anshar; Niartiningsih, Andi; Faizal, Ahmad; Rasyid, Abdul; Muhiddin, Amir Hamzah; Arifin, Isnaeni
Jurnal Ilmu Kelautan SPERMONDE VOLUME 9 NUMBER 2, 2023
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v9i2.19961

Abstract

Seaweed cultivation activities in Jeneponto Regency have been practised for a long time and have become the main livelihood for most of the Mallasoro Bay community. In cultivating seaweed, obstacles often arise in the form of failures experienced by seaweed farmers or poor-quality yields. This study was aimed to develop alternative planting calendars for Eucheuma sp. in Mallasoro Bay, Jeneponto Regency based on sea surface temperature and distribution of chlorophyll-a obtained from Landsat-8 imagery. Image Processing Sea Surface Temperature and Chlorophyll-a were processed using ENVI 4.8 AND 5.3 software, the satellite images used were clean and without cloud disturbance. In this study, data analysis was carried out descriptively. The water temperature that is good for seaweed growth is 27-30˚C, for Mallasoro Bay Sea Surface Temperature which is suitable for seaweed cultivation, namely April, May, June, July, August, September, October and November. While the classification is based on the criteria for chlorophyll-a trophic status in marine waters, namely the range < 1 mg/L is classified as Oligotrophic, ≥ 1–3 mg/L is classified as Mesotrophic, ≥ 3–5 mg/L is classified as Eutrophic, and > 5 mg/L is classified as Hypertrophic. , from the results of image analysis for the distribution of chlorophyll-a in Mallasoro Bay, it shows that Mallasoro Bay is at the Mesotrophic level throughout the year or the fertility level of the waters is quite fertile because it is in the range of ≥ 1–3 mg/L. so that a seaweed planting calendar can be obtained in Mallasoro Bay, namely in January, February and December, preparation of tools such as cleaning and repair of seaweed planting tools can be carried out, then at the end of March, the end of May, the end of July and the end of September, the procurement of seaweed seeds is carried out. , in early April, early June, early August, and early October, seaweed seeds can be spread, then in mid-May, mid-July, mid-September, and mid-November, harvesting can be carried out, so that seaweed cultivation can be carried out 4 times in one year. cycle.
ASSESSING DISTRIBUTION PATTERN FOR SKIPJACK TUNA IN BONE GULF, INDONESIA DURING JANUARY-JUNE Zainuddin, Mukti; Ridwan, Muhammad; Muhiddin, Amir Hamzah
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NUMBER 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.20799

Abstract

Satellite remote sensing provides systematically important information on oceanographic signatures. Sea surface temperature (SST) and chlorophyll-a concentration (Chl-a) obtained from Aqua/ Moderate Resolution Imaging Spectro-radiometer (MODIS) data together with skipjack fishing data during January-June were applied to assess the distribution pattern of skipjack tuna in the Bone Gulf, Indonesia. Geographic information system techniques were employed to map out the potential fishing zone generated from the Cobb Douglass model. The fish distribution pattern was produced by the movement of the Gravity Center of the potential fishing ground. Results expressed that the most potential catch per unit efforts (fish/trip) associated with the areas where a combination of optimum SST and chlorophyll-a concentration ranged was found. The center of skipjack potential fishing zones developed in January-February along with the western regions in the Bone Gulf and moved to the northern side during March and April, and subsequently migrated to the south in May –June. We found that skipjack tuna showed a clockwise movement pattern throughout the Bone Gulf during the first semester period (January-June). Therefore, the potential fishing zones suggest corresponding to the movement of skipjack concentration, which may link with prey upon by skipjack.
Pengamatan Pasang Surut Untuk Penentuan Datum Ketinggian di Pantai Desa Parak, Kecamatan Bonto Matene, Kabupaten Selayar, Provinsi Sulawesi Selatan Mutiara, Indra; Muhiddin, Amir Hamzah
Jurnal Ilmu Kelautan SPERMONDE VOLUME 2 NOMOR 2, 2016
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v2i2.1308

Abstract

Height of a point on land is determined by the position of sea level Average ( Mean Sea Level) . This paper investigates the Bench Mark local elevation measurements to Mean Sea Level tidal observations for 15 days at the village of Parak , District Bonto Matene, Selayar Regency, South Sulawesi Province . The results of the analysis of tidal by using the Admiralty Methode shows that  the value of Mean Sea Level in the study site is 119 cm, Spring Tide tidal current was 93.04 cm, and based on the value of Formzahl, the tides tipe on this beach is mixed tide prevailing semidiurnal. The measurement results indicate that the height of local Bench Mark to the Mean Sea Level is amounted to +1.927 m.
MAPPING MANGROVE GREEN BELTS IN AQUACULTURE PONDS USING GOOGLE EARTH ENGINE Selamat, Muhammad Banda; Supriadi, Supriadi; Muhiddin, Amir Hamzah; Rani, Chair
Jurnal Ilmu Kelautan SPERMONDE VOLUME 12 NOMOR 1, 2026
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/jiks.v12i1.50315

Abstract

Mangrove ecosystems function as vital biophysical buffers, attenuating wave energy, reducing coastal erosion, and stabilizing shorelines. Historically, they have been employed as natural barriers to protect coastal aquaculture, including fish ponds. This study examines the temporal dynamics of mangroves safeguarding the Unhas Bojo educational fish ponds using cloud-based geospatial analysis via Google Earth Engine (GEE). Field data were collected from June 2–5, 2023, across 27 sampling points within three stations, complemented by Sentinel-2A imagery (474 scenes, from 2016 to 2023). Equipment included GPS logger, quadrat, compass, ImageJ, timestamp camera, protractor, Google My Maps, GPX Viewer, QGIS, and GEE. Species identified were Rhizophora mucronata, Rhizophora apiculata, and Sonneratia alba. Average canopy cover was 76.2 ± 5.8%, indicating good ecological condition. NDVI values ranged from -0.12 to 0.65, with a model coefficient of determination (R²) of 0.835 and RMSE of 1.69. Despite overall resilience, seasonal NDVI dynamics revealed consistent patterns: higher productivity during the dry season and reduced values in the rainy season. These intra-annual fluctuations demonstrate that mangrove vigor is strongly coupled with climatic drivers, particularly rainfall intensity and hydrological regimes. Persistent canopy cover underscores ecological resilience, yet sensitivity to seasonal stressors highlights the importance of monitoring mangrove health under variable climatic conditions.
ANALYSIS OF SEDIMENTATION RATE AND CHARACTERISTICS OF SEABED SEDIMENT IN THE COASTAL WATERS OF TANETE RILAU DISTRICT, BARRU REGENCY Aprilya, Lintang; Muhiddin, Amir Hamzah; Kamaruddin
Jurnal Ilmu Kelautan SPERMONDE VOLUME 12 NOMOR 1, 2026
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/jiks.v12i1.50566

Abstract

The objective of this research is to ascertain the characteristics and sedimentation rates in the coastal waters of Tanete Rilau District. The study was conducted in March 2026 across three observation sites. Sediment data were collected utilizing the sediment trap method, which was deployed three times during the research period (at the beginning, middle, and end of the month), with each deployment lasting for two days. Seabed sediment samples were analyzed using the dry sieving method to determine the grain size distribution according to the Wentworth scale. The findings indicated that the average sedimentation rate during the observation period was 0.050 g/m²/day, with a maximum value recorded at Station 3 of 0.23 g/m²/day and a minimum value at Stations 1 and 2 of 0.01 g/m²/day. The sediment characteristics at the research site were predominantly composed of very fine sand to silt fractions, with the sediment type classified as sandy silt at Stations 1 and 2 and sand at Station 3.
ANALYSIS OF THE SUITABILITY OF BEACH TOURISM FOR RECREATION CATEGORY AT ANNAS DATOE BUTUNG BEACH, TANETE RILAU DISTRICT, BARRU REGENCY Nawawi, Muhammad Alfa Rizki; Muhiddin, Amir Hamzah; Kamaruddin
Jurnal Ilmu Kelautan SPERMONDE VOLUME 12 NOMOR 1, 2026
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/jiks.v12i1.50567

Abstract

This study aimed to examine the biophysical characteristics and evaluate the suitability of the coastal area for the development of recreational beach tourism in Tanete Rilau District, Barru Regency, South Sulawesi. The research was conducted from January to April 2026. The study area comprised three observation stations: Station 1, Station 2, and Station 3, each exhibiting distinct biophysical characteristics. The parameters observed included beach type, beach width, water substrate, depth, brightness, current speed, beach slope, land cover, presence of hazardous biota, and availability of freshwater. Data were collected through field surveys and analyzed using the Tourism Suitability Index (TSI). The results indicated that the TSI values at Stations 1 and 2 were 2.0 and 2.1, respectively, categorizing them as suitable, whereas Station 3 had a TSI value of 1.8, categorizing it as unsuitable. This suggests that Stations 1 and 2 possess potential for development as recreational beach tourism areas, while Station 3 is less suitable for tourism development.
Co-Authors Abda Abda Abdul Rasyid Ahmad Faizal Aldri Frinaldi Amran, Muhammad Anshar Andi Niartiningsih Aprilya, Lintang Arifin, Isnaeni Hayati, Nurul Fitri Inayah Yasir Indra Mutiara Indra Mutiara, Indra Kamaruddin M, St. Madina Mahatma Lanuru Marzuki Ukkas, Marzuki Maulana, Firly Muh. Hatta Muhammad Banda Selamat Muhammad Ridwan Mukti Zainuddin Nawawi, Muhammad Alfa Rizki Nirwana, Ira Novia elvianti Rahmadi Tambaru Sadik, Muhammad Salihin, Abdilah Sam, Nurfitri Samawi, Muh. Farid Supriadi Supriadi Syafiuddin Syafiuddin Ulfi Syamsiah Wasir Samad, Wasir