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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 5 Documents
 1 
Search results for , issue "volume 12 nomor 1, 2026" : 5 Documents clear
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.
DIVERSITY, DISTRIBUTION AND CONSERVATION STATUS OF SHARK SPECIES FROM THE WATERS OF LANGKAI ISLAND, SPERMONDE ARCHIPELAGO Ambo Ala Husain, Aidah; Subhan, Andi Muhammad; Burhanuddin, Andi Iqbal; Budimawan, Budimawan; Bahar, Ahmad
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.v12i1.50389

Abstract

Sharks as top predators in marine waters have important role in balancing the ecosystem, however they were suffering from high overfishing fishery. The study was conducted to identify species composition and sex determination observed sharks as well as mapping their distribution, and to define interviewed by-catch sharks into their conservation status based on the IUCN Red List. This research was carried out in April 2021 in the adjacent waters of Langkai Island, Spermonde Archipelago. A survey method was carried out to gather fisheries data and biological aspects of catches in 11 trips, as well as conducting interviews as secondary data needs. There were 20 individuals of identified shark with a length range of 58-131 cm, and within composition of five species: Chiloscyllium punctatum (45%), Triaenodon obesus (25%), Carcharhinus melanopterus (20%), C. falciformis (5%), and C. sealei (5%). The female sharks composition was higher (65%) than male ones (35%). The observed sharks were fished in the adjacent water of Langkai Island within distances of 0.20-8.25 km to the southwest of the island. Meanwhile, there had been 12 species of by-catch sharks from the fishermen interviews, which were classified into conservation status of Near Threatened (58%), Vulnerable (17%), Endangered (17%), and Critically Endangered (8%).
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.
MACROZOOBENTHOS DIVERSITY AS A BIOINDICATOR OF WATER CONDITIONS IN TANETE RILAU SUBDISTRICT, BARRU REGENCY: A STUDY OF COMMUNITIES, SEDIMENTS, AND ENVIRONMENTAL PARAMETERS Suryadi, Muh. Fahreza; Samawi, Muhammad farid; 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.v12i1.50571

Abstract

Tanete Rilau Subdistrict in Barru Regency is a coastal area facing environmental pressures due to anthropogenic activities such as settlements, fishponds, and coastal development. This study aims to analyze the diversity of macrozoobenthos as a bioindicator of water conditions in the area. The research was conducted in March 2026 at three observation stations: the fishpond area (Station 1), mangrove ecosystem (Station 2), and settlement area (Station 3). The results found 8 species of macrozoobenthos from the phylum Mollusca (7 species of Gastropods and 1 species of Bivalvia), with a total of 61 individuals. The abundance of individuals ranged from 3–28 ind/m², with the highest abundance at Station 1 (28 ind/m²) and the lowest at Station 3 (3 ind/m²). The diversity index (H’) ranged from 0 to 1.32, categorizing the water quality as low to moderate. Station 2 showed the highest diversity (1.32), while Station 3 showed single species dominance by Clypeomorus pellucida with a dominance index (C) of 1. Sediment analysis showed dominance of fine to very fine sand fractions with total organic matter content (TOM) ranging from 5.01% to 34.88%. PCA analysis confirmed that variation in environmental conditions is controlled by the interaction of temperature, salinity, pH, DO, and TOM, which directly affect the macrozoobenthos community structure at the research sites.

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