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COMPARISON OF STRUCTURE AND COMPOSITION OF MANGROVE TYPES IN BONTO BAHARI AND AMPEKALLE AREA, MAROS REGENCY Rukminasari, Nita; Kadir, Amelia; Kudsiah, Hadiratul; Yunus, Budiman
Jurnal Ilmu Kelautan SPERMONDE VOLUME 11 NUMBER 1, 2025
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/jiks.v11i1.44591

Abstract

Mangrove ecosystems play a crucial role in coastal protection and biodiversity conservation. However, few studies have compared the structures and compositions of mangrove species across different regions. This study analyzed the structural differences and species composition of mangroves in Bonto Bahari and Ampekalle in Maros Regency. This study employed a line transect and plot method to assess tree density, canopy cover, and vegetation height. The results showed that Ampekalle had the highest canopy cover percentage, indicating a more stable environment for mangrove growth. Rhizophora mucronata was the dominant species across all sites, with the highest tree density recorded at Ampekalle. Differences in vegetation height suggest variations in soil conditions, water availability, and sunlight exposure. These findings emphasize the ecological importance of Ampekalle as a priority area for conservation. Further research is required to explore the environmental factors influencing mangrove distribution.
Struktur Komunitas Dan Kelimpahan Fitoplankton Di Pulau Kapoposang Kabupaten Pangkajene Dan Kepulauan, Provinsi Sulawesi Selatan (Abundance and Species Assemblage of Phytoplankton at Kapoposang Island, Pangkajene and Kepulangan Regency, South Sulawesi Province) Rukminasari, Nita
Jurnal Pengelolaan Perairan Vol. 1 No. 1 (2018)
Publisher : Program Studi Manajemen Sumber Daya Perairan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was aim to compare community structure and abundance of phytoplankton in Kapoposang Island. The result of this research was expected to be used as an information of the effect of waters quality on abundances, community structure and phytoplankton species composition in Kapoposang Island. This research was conducted on February and May 2016 in Kapoposang Island, Pangkajene and Islands Regency. Identification of samples was conducted in Fish Pest and Diseases Laboratory, Department of Fisheries, Faculty of Marine Science and Fisheries, Hasanuddin University. The results showed community structure of phytoplankton in Kapoposang Island based on sampling station were not significantly different (P>0,05), whereas community structure of phytoplankton based on rainy and summer seasons were significantly different (p<0,05).Alexandrium kutneraee, Toxarium undulatum dan Bellerochea horologicalesis most contribute species in Kapoposang Island the most average abundancesof phytoplankton was foundon summer season in Kapoposang Island1.591.494 cells/L.Both of the islands has high equitability index value and the distribution was homogeneous. The value of diversity index showed in all of the stations, phytoplankton community were mid stable and the dominance index showed both of the islands have dominant species.Keywords: Kapoposang Island, Phytoplankton, community structure, abundance, ecological index
Pengaruh Tutupan Karang Hidup Terhadap Keanekaragaman dan Dominansi Ikan Karang di Zona Inti KKPD Pulau Palue, NTT Vincentius, Angelinus; Rukminasari, Nita
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 8 No 2 (2025): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Edisi November 2025
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v8i2.5078

Abstract

Penelitian bertujuan untuk mengkaji pengaruh tutupan karang hidup terhadap keanekaragaman dan dominansi ikan karang di Zona Inti KKPD Pulau Palue, NTT. Penelitian berlangsung sejak Agustus 2024 sampai Desember 2024. Data terumbu karang diambil dengan metode transek foto bawah air, diolah dengan software Coral Point Count with Excel extension, kemudian dinilai sesuai Kepmen. Lingkungan Hidup No.4/2001.  Data ikan karang diambil dengan metode Underwater Visual Census, dianalisis Indeks Keanekaragaman dan Indeks Dominansi, selanjutnya dianalisis regresi. Hasil penelitian, data tutupan karang di 3 stasiun dalam Kategori Kurang Baik, yaitu kategori karang keras sebesar 24,20% di Stasiun Ona; 21,41% di Stasiun Langawai dan 23,18% di Stasiun Watunoni. Kelimpahan ikan karang di Stasiun Ona sebesar 1,97 individu/m2, Stasiun Langawai 0,78 individu/m2 dan Stasiun Watunoni 0,59 individu/m2. Indeks keanekaragaman ikan karang di Stasiun Ona adalah 2,293; Stasiun Langawai 2,591; Watunoni 2,847. Indeks dominansi ikan karang di Stasiun Ona 0,164; Stasiun Langawai 0,148; dan Stasiun Watunoni 0,112. Pengaruh tutupan karang hidup terhadap keanekaragaman ikan karang dinyatakan dalam persamaan regresi polinomial: Y = 0,0004X2 – 0,0656X + 3,0791. Nilai r sebesar 0,709 menunjukkan korelasi kuat antara variabel X dan Y. Nilai R2 sebesar 0,5029 menjelaskan bahwa variabel X (tutupan karang hidup) dapat mempengaruhi 50,29% dari variabel Y (indeks keanekaragaman ikan karang), dan sebesar 49,71% nilai indeks keanekaragaman ikan karang (Y) dipengaruhi oleh faktor-faktor lain di luar penelitian. Hubungan tutupan karang hidup dan dominansi ikan karang dalam persamaan regresi polinomial: Y = 9E-06X2 - 0.0014X + 0.1807. Nilai r sebesar 0,521 menunjukkan adanya korelasi positif yang sedang antara variabel X dan Y. Nilai R2 sebesar 0,272 menjelaskan bahwa variabel X (tutupan karang hidup) dapat mempengaruhi 27,2% dari variabel Y (indeks dominansi ikan karang), dan sebesar 72,8% variasi indeks dominansi dipengaruhi oleh faktor-faktor lain di luar penelitian.
Comparative Analysis of Coral Cover Percentage and Species Diversity in Karanrang Island, Balang Lompo Island, Badi Island, and Lumu-Lumu Island Using the Underwater Photo Transect (UPT) Method Gracela; Rukminasari, Nita; Alam, Jamaluddin Fitrah; Rahim, Sri Wahyuni
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/634

Abstract

This study assessed live coral cover and coral genus diversity across Karanrang Island, Balang Lompo Island, Badi Island, and Lumu-Lumu Island. Data collection was conducted at 12 observation stations (depth ±5 m) using the Underwater Photo Transect (UPT) method in April 2025. Photo analysis with CPCe 4.1 software was used to calculate the percentage of live coral cover, while the diversity index was calculated using the Shannon-Wiener formula (H’). The findings revealed that Badi Island exhibited the highest live coral cover (32.31–45.03%), whereas Lumu-Lumu Island demonstrated the lowest condition (10.60–24.97%). The highest diversity index was recorded on Balang Lompo Island (H' = 2.53) and the lowest on Karanrang Island (H' = 0.83). Badi Island is predominantly composed of Porites sp. and Acropora sp., suggesting ecosystem stability and a high potential for regeneration, while Karanrang and Balang Lompo Islands display moderate conditions with a prevalence of adaptive massive corals. These results show variations in coral cover and diversity between islands due to differences in environmental pressures and the ecological characteristics specific. These findings emphasize the need for location-based management to maintain the ecological functions and restoration potential of coral reefs ecosystem in the Spermonde Islands.
Comparison of Mangrove Biomass in Three Different Mangrove Ecosystem Locations in Maros Regency Yusran, Muhammad; Rukminasari, Nita; Tresnati, Joeharnani; Moka, Wilma Joana Carolina
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/635

Abstract

This study aims to analyze the variation in mangrove biomass across three locations in Maros Regency, South Sulawesi, namely Borongkalukua, Bonto Bahari, and Ampekale. Data collection was conducted using purposive sampling design, 27 observation plots (10×10 m; n=9 per location) were established to estimate biomass through Diameter at Breast Height (DBH) and species-specific allometric equations. Five mangrove species were identified, namely Rhizophora mucronata, Rhizophora apiculata, Avicennia alba, Avicennia marina, and Sonneratia alba. The two-way ANOVA results showed that species (p = 0.0003), location (p = 0.0266), and their interaction (p = 0.0065) had significant effects on biomass. The Kruskal–Wallis test also confirmed differences in median biomass among locations (p = 0.0104). Borongkalukua exhibited the highest biomass (302.57 Mg/ha) dominated by R. mucronata and R. apiculata, followed by Ampekale (223.20 Mg/ha) dominated by R. apiculata and S. alba, while the lowest biomass was recorded in Bonto Bahari (129.44 Mg/ha), dominated by A. marina. These variations in biomass reflect differences in species’ adaptive capacity to local environmental conditions. Overall, the findings emphasize that the interaction between species and location is a key determinant of mangrove biomass productivity. 
PEMBERDAYAAN MASYARAKAT PESISIR MELALUI DIVERSIFIKASI PRODUK RUMPUT LAUT: STUDI KASUS DI DUSUN BORONGKALUKUA, SULAWESI SELATAN Rahim, Sri Wahyuni; Yanti, Asri; Istnaeni, Zabhika Dinda; Andy Omar, Sharifuddin Bin; Tresnati, Joeharnani; Yaqin, Khusnul; Nadiarti, Nadiarti; Rukminasari, Nita; Parawansa, Basse Siang; Umar, Moh. Tauhid; Kudsiah, Hadiratul; Suwarni, Suwarni; Moka, Wilma Joanna Carolina; Putri, Amanda Pricella; Haerul, Andi
Kumawula: Jurnal Pengabdian Kepada Masyarakat Vol 9, No 2 (2026): Kumawula: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kumawula.v9i2.67549

Abstract

Seaweed is one of the leading fishery commodities in the coastal areas of South Sulawesi, with high economic potential. However, its utilization is still predominantly limited to the sale of raw products, resulting in limited economic value added for local communities. This Community Service Program was conducted to promote seaweed product diversification through the development of value-added food products, namely seaweed-based noodles and nuggets. The activity was carried out on May 10, 2025, in Borongkalukua Hamlet, Borimasunggu Village, Maros Baru District, Maros Regency, involving coastal communities as the main participants. The implementation methods included educational sessions, demonstrations and hands-on processing practices, as well as product packaging training. Evaluation was conducted using pretest and posttest approaches to describe changes in participants' responses regarding their knowledge, technical understanding of processing, and motivation. The results showed an increase in the percentage of positive responses across most measured indicators. Participants' knowledge increased from 5–15% before the training to 60–80% after the training, while motivation increased from 45–65% to 75–93%. Overall, the program indicated an improvement in the community's understanding of utilizing seaweed as a value-added product and increased participants' interest in developing local resource-based economic activities. This program has the potential to support capacity strengthening among coastal communities and promote the more sustainable utilization of marine resources.Rumput laut merupakan komoditas perikanan unggulan di wilayah pesisir Sulawesi Selatan yang memiliki potensi ekonomi tinggi, namun pemanfaatannya masih didominasi oleh penjualan dalam bentuk mentah sehingga nilai tambah ekonomi yang diperoleh masyarakat masih terbatas. Kegiatan Pengabdian kepada Masyarakat ini dilaksanakan sebagai upaya mendorong diversifikasi produk rumput laut melalui pengolahan menjadi produk pangan bernilai tambah berupa mie dan nugget. Kegiatan berlangsung pada tanggal 10 Mei 2025 di Dusun Borongkalukua, Desa Borimasunggu, Kecamatan Maros Baru, Kabupaten Maros, dengan melibatkan masyarakat pesisir sebagai peserta utama. Metode pelaksanaan meliputi penyuluhan, demonstrasi dan praktik langsung pengolahan, serta pelatihan pengemasan produk. Evaluasi dilakukan menggunakan pretest dan posttest untuk menggambarkan perubahan respons peserta pada aspek pengetahuan, pemahaman teknis pengolahan, dan motivasi. Hasil kegiatan menunjukkan adanya peningkatan persentase respons positif pada sebagian besar indikator yang diukur. Pengetahuan peserta meningkat dari 5–15% sebelum pelatihan menjadi 60–80% setelah pelatihan, sedangkan motivasi meningkat dari 45–65% menjadi 75–93%. Secara umum, kegiatan ini mengindikasikan adanya peningkatan pemahaman masyarakat terhadap pemanfaatan rumput laut menjadi produk bernilai tambah serta meningkatnya ketertarikan peserta untuk mengembangkan aktivitas ekonomi berbasis sumber daya lokal. Program ini berpotensi mendukung penguatan kapasitas masyarakat pesisir dan pemanfaatan sumber daya laut secara lebih berkelanjutan.
Short-term variation in phytoplankton and zooplankton assemblages across a seaweed- farming coastal gradient in Galesong, Sulawesi, Indonesia Rahmat Pratama Putra; Nur Halizah Roebetho; Putri Sakinah Resman; Andi Alya Yusriyyah; Amanda Pricella Putri; Asmi Citra Malina; Nita Rukminasari; Irmawati; Jamaluddin Fitrah Alam
Treubia Vol. 53 No. 1 (2026): Treubia 53(1)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/treubia.2026.15008

Abstract

Information on short-term variation in phytoplankton and zooplankton assemblages in tropical seaweed farming environments is still limited. This study aimed to characterize the taxonomic composition, abundance, diversity and weekly spatial patterns of phytoplankton and zooplankton along a nearshore-seaweed farm-offshore gradient in Galesong, South Sulawesi, Indonesia. Sampling was carried out once a week for six consecutive weeks at three permanent stations representing nearshore waters, active Kappaphycus alvarezii farm and offshore waters. Samples were analyzed by means of Inverse Distance Weighted (IDW) interpolation to determine the microscopic identification, ecological indices and spatial distribution mapping. The total number of phytoplankton taxa was 10 and the assemblage was dominated by the diatoms Chaetoceros sp. and Leptocylindrus sp. The phytoplankton abundance was always higher than the zooplankton abundance and the Shannon–Wiener diversity ranged from 1.67 to 1.99. Five zooplankton taxa were recorded with unidentified crustaceans, Tintinnopsis sp. and Balanus larvae being numerically dominant. Zooplankton Shannon-Wiener diversity ranged from 1.02 to 1.09. The offshore station had highest total abundance in Weeks 1–3, the nearshore station had highest values in Weeks 4–6, and the seaweed-farm station did not show a consistently unique pattern of abundance or diversity. This pattern suggests that environmental variability may cause redistribution of plankton assemblages, although the mechanisms were not directly tested in this study. These results offer a preliminary baseline of phytoplankton and zooplankton assemblages in the region of study. Future studies should incorporate greater spatial and seasonal sampling and environmental measurements to better understand factors influencing plankton variability.
Co-Authors . Sahabuddin ., Nadiarti Alimuddin Alinda Nurbaeti Hasanah, Alinda Nurbaeti Amanda Pricella Putri Amelia Wahdani Andi Aliah Hidayani Andi Aliah Hidayani Andi Alya Yusriyyah Andi Parenrengi Andi Tenri Waru Asmi Citra Malina Bakti, Nurqadri Syaia Basse Siang Parawansa Chichilia Qaila Azzahrah Rahman Dewi Yanuarita Dewi Yanuarita Dewi Yanuarita, Dewi Dody Dharmawan Trijuno Dwi Fajriyati Inaku Dwi Fajriyati Inaku Dwi Fajriyati Inaku, Dwi Fajriyati Elfrida Ratnawati Fachruddin, Liestiaty Farida G Sitepu, Farida G Farida Sitepu Gracela Gunarto Gunarto Hadiratul Kudsiah, Hadiratul Haerul, Andi Hasanah, Alinda N Herawati, Sari Inaku, Dwi Fajriati Irmawati Irmawati Irmawati Irmawati Istnaeni, Zabhika Dinda Jamaluddin Fitrah Alam Jamaluddin Jompa Joeharnani Tresnati Kadir, Amelia Khaerul Awaluddin, Khaerul KHUSNUL YAQIN La Nane Liestiaty Fachruddin Moh. Tauhid Umar Moh. Tauhid Umar Moh. Tauhid Umar Moka, Wilma J.C. Moka, Wilma Joana Carolina Moka, Wilma Joanna Carolina Muhammad Lukman Muhammad Lukman Muhammad Yusran Nadiarti . Nadiarti Nadiarti, Nadiarti Nadiarti Nurdin Nur Ainun Nur Halizah Roebetho Nur Indah Sari Arbit Parawansa, Basse Siang Putri Sakinah Resman Putri, Amanda Pricella Rahim, Nur Fadhilah Rahmadi Tambaru Rahman, Chichilia Qaila Azzahrah Rahmat Pratama Putra Ramli Ramli Ramli Sahabuddin Sahabuddin Salwa, Sausan As Sapto Andriyono Sarwinda, Sarwinda Sharifuddin Andy Omar Sharifuddin Bin Andy Omar Sri Wahyuni Rahim, Sri Wahyuni Suharto Suharto Suharto Suharto Sulfitratullah Sulfitratullah Supriadi Suwarni . Suwarni Suwarni Suwarni Suwarni Syamsu Alam Ali, Syamsu Alam Vincentius, Angelinus Wahdani, Amelia yanti, asri Yunus, Budiman Yushinta Fujaya Yusran Nur Indar Yusuf, Muhammad Yusfi