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SEDIMENT DEPOSITION IN A SOUTH SULAWESI SEAGRASS BED Lanuru, Mahatma; Fitri, Ramdina
Marine Research in Indonesia Vol 33, No 2 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Deposition of suspended sediment was measured with sediment traps in shallow coastal waters colonized by Thallasia dominated seagrass in Pannikiang Island, South Sulawesi (Indonesia). The primary objective of this study was to compare the amounts of sediment deposition inside seagrass beds and in adjacent unvegetated area. The traps were placed in a seagrass bed (Station I, II, and III) and in an adjacent unvegetated area (Station IV) measuring the sediment flux on the seabed. The sediment fluxes due to deposition were significantly higher at stations I and II (P < 0.05) and station III (P < 0.01) than at station IV (unvegetated area). Results of this study suggest that sediment deposition was promoted by dense shoots of seagrass. The study provides quantitative evidence for the importance of seagrass bed as sites of sedimentation of fine particles. Â

SEDIMENT DEPOSITION IN A SOUTH SULAWESI SEAGRASS BED Lanuru, Mahatma; Fitri, Ramdina
Marine Research in Indonesia Vol 33 No 2 (2008)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Deposition of suspended sediment was measured with sediment traps in shallow coastal waters colonized by Thallasia dominated seagrass in Pannikiang Island, South Sulawesi (Indonesia). The primary objective of this study was to compare the amounts of sediment deposition inside seagrass beds and in adjacent unvegetated area. The traps were placed in a seagrass bed (Station I, II, and III) and in an adjacent unvegetated area (Station IV) measuring the sediment flux on the seabed. The sediment fluxes due to deposition were significantly higher at stations I and II (P < 0.05) and station III (P < 0.01) than at station IV (unvegetated area). Results of this study suggest that sediment deposition was promoted by dense shoots of seagrass. The study provides quantitative evidence for the importance of seagrass bed as sites of sedimentation of fine particles.

Konsentrasi Bahan Organik dalam Sedimen Dasar Perairan Kaitannya dengan Kerapatan dan Penutupan Jenis Mangrove di Pulau Pannikiang Kecamatan Balusu Kabupaten Barru Ayu Lestaru; Amran Saru; Mahatma Lanuru
Prosiding Simposium Nasional Kelautan dan Perikanan Vol. 5 (2018): PROSIDING SIMPOSIUM NASIONAL V KELAUTAN DAN PERIKANAN UNHAS
Publisher : Fakultas Ilmu Kelautan dan Perikanan (FIKP), Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (678.873 KB)

Penelitian telah dilaksanakan pada Agustus 2017. Lokasi penelitian Pulau Pannikiang Kabupaten Barru. Tujuan untuk mengetahui perbedaan kandungan bahan organik disetiap jenis mangrove dan hubungan kerapatan dan penutupan jenis mangrove dengan kandungan bahan organik di sedimen. Pengambilan data mangrove dan sampel bahan organik berdasarkan jenis mangrove dominan di pulau pannikiang. Pengambilan data dengan menggunakan metode transek (Line transect) dengan luas plot 10 x 10 meter pada ke tiga stasiun. Hasil penelitian menunjukkan bahwa pada jenis mangrove dominan dan tumbuh berkelompok antar jenis mangrove di pulau Pannikiang tidak berbeda kandungan bahan organiknya sedangkan stasiun jenis mangrove dengan stasiun yang tidak ditumbuhi mangrove berbeda kandungan bahan organiknya. Hal ini dikarenakan bahwa keberadaan bahan organik dipengaruhi oleh kerapatan dan penutupan jenis mangrove. Hasil pengukuran kerapatan di setiap jenis mangrove tergolong dalam kategori sedang yang berkisar antara 0,06 – 0,12 (individu/m2). Kandungan bahan organik tertinggi pada stasiun 1 jenis mangrove Rhizophora apiculata adalah 32,83% dan stasiun 3 Rhizophora stylosa 30,57%. Hubungan kerapatan jenis mangrove dengan kandungan bahan organik menggunakan analisis linear diperoleh nilai koefisien determinasi (R2) sebesar 0,353, sedangkan nilai koefisien korelasi diperoleh sebesar 0,594 yang berarti berkorelasi positif antara kandungan bahan organik dengan kerapatan jenis mangrove. Kata kunci: Ekosistem Mangrove, Jenis Sedimen dan Kandungan Bahan Organik di Pulau Pannikiang

TSS ASSIMILATION CAPACITY IN THE MAMUJU RIVER ESTUARY Rahmat Januar Noor; Mahatma Lanuru; Ahmad Faizal; Fathuddin .
JFMR (Journal of Fisheries and Marine Research) Vol 4, No 3 (2020): JFMR VOL 4 NO 3
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2020.004.03.2

The Mamuju River Estuary is an estuary whose role is to protect coastal ecosystems (mangroves, seagrasses, coral reefs) from the negative effects of intensification of land clearing upstream and coastal. Land clearing for various human needs encourages erosion resulting in high TSS (Total Suspended Solid) concentrations in river water bodies. This study aimed to determine the assimilation capacity of the Mamuju River estuary on TSS pollutants. The results showed that TSS concentrations still met the quality standard for marine biota (mangroves: <80 mg / l) with a lower distribution pattern when getting further away from the river mouth. The flushing time at the study site is 5.6 days so the river and seawater exchange is ± 65 times per year. The pollutant load was 586.11 tons/month. The value of the assimilation capacity reaches 255.57 tons/month. Based on these results it can be concluded that the Mamuju River estuary has experienced an overload of sediment.

DIFFERENCES IN SPECIES, COVERAGE AND DENSITY OF SEAGRASS IN THE INTERTIDAL AND SUBTIDAL AREAS AT LABAKKANG BEACH, PANGKAJENE ISLAND REGENCY Indah Sandra Dewi; Lanuru, Mahatma; La Nafie, Yayu A; Amri, Khairul; Ukkas, Marzuki
Jurnal Ilmu Kelautan SPERMONDE VOLUME 10 NUMBER 1, 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v10i1.19976

Labakkang Beach, Pangkajene Islands Regency has the characteristics of gently sloping coastal waters covered with various mangrove and seagrass communities. In general, seagrass is more commonly found in intertidal than subtidal areas, this is due to the depth reason. However, based on first observations, seagrass in Labakkang coastal waters thrives in subtidal areas and is less fertile in intertidal areas. The purpose of this study was to decide the differences in species, cover, and density of seagrass in intertidal and subtidal areas in the waters of Labakkang Beach, Pangkajene Islands Regency. This research was conducted in July 2021 with the method used, namely purposive sampling. Measurements of environmental parameters at the sampling location were carried out directly (in situ) including temperature, salinity, tides, depth, and current velocity, while turbidity, Total Organic Matter (TOM) analysis, and grain size of sediment were carried out tegakanirectly (ex-situ). The results of the average measurements of temperature, salinity, current velocity, depth, turbidity and TOM respectively show the range of 300C - 310C; 33.3‰ – 35.0‰; 0.07 m/s - 0.18 m/s (at high tide); 0.31 m - 1.32 m; 11.06 NTU - 29.04 NTU and 2.49 % - 5.39 %. The results of sediment analysis using Software Gradistat are 2 types of sediment, namely medium sand & fine sand and 2 types of sediment texture, namely Slightly Gravelly Sand and Slightly Gravelly Muddy Sand. The average percentage of seagrass cover at the intertidal station was 23.33 % while at the subtidal station it was 61.11% and only 2 species of seagrass were found, namely Enhalus acoroides and Halophila ovalis. The average density of seagrass at the intertidal station is 48.88 ind/m2 while at the subtidal station it is 86 ind/m2. The results of the Independent T-test analysis showed that there were significant differences in the cover and density of seagrass in the intertidal zone and subtidal zone in the coastal waters of Labakkang.

The Suitable Sites for Seagrass Transplantation in Lae-Lae Island and Sandbar According to Sediment Characteristics Lanuru, Mahatma; Patandianan, Priska Bungaran; Wahidin, Caesar Islami; Permatasari, Permatasari
Journal Omni-Akuatika Vol 18, No 2 (2022): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2022.18.2.956

The success of a seagrass transplantation effort depends on identifying locations with optimal sediment characteristics for seagrass growth and survival. This study analyzed sediment characteristics of seagrass bed sediment and adjacent unvegetated sediment on Lae-Lae Island and Lae-Lae sandbar (Makassar, South Sulawesi) to determine the suitable sites for seagrass transplantation. Seagrass bed sediments and adjacent unvegetated sediments were collected from four locations to measure sediment particle size, redox potential, organic matter, water content, nitrate, and phosphate concentrations. Analysis of similarities (ANOSIM) was performed using PAST (Paleontological Statistics) software to determine a suitable site for seagrass planting (transplantation). The results show that surface sediments in the Lae-Lae island are composed of medium sand and coarse sand with grain sizes varying from 0.290 to 0.768 mm, whereas in the Lae-Lae sandbar, the sediment is composed of medium sands (0.371 – 0.460 mm). Redox potential (Eh) varied from -34.1 to -65.7mV, water contents were 1.3 to 1.8%, organic contents were 19.85 to 38.53%, nitrate content varied from 0.60 to 3.47, and phosphate content varied from 7.42 to 14.19 ppm. The percentage of mud (clay and silt) and organic matter were slightly higher in seagrass bed sediments compared to unvegetated area sediments. No differences in nutrient contents (nitrate and phosphate) between seagrass sediments and unvegetated were observed in this study. ANOSIM results show no difference in the sediment characteristics between a seagrass bed and unvegetated sand at the north and south sides of Lae-Lae Island and Lae-Lae sandbar, which means that these three sites are suitable for seagrass transplantation.Keywords: sediment, seagrass, transplantation, site selection, ANOSIM, Lae-Lae

Phytoplankton and Physics Chemical Parameters in Estuary Waters, West Coast of South Sulawesi, Indonesia Samawi, Muh. Farid; Tahir, Akbar; Tambaru, Rahmadi; Amri, Khairul; Lanuru, Mahatma; Armi, Nur Khairunisa
Torani Journal of Fisheries and Marine Science VOLUME 3 NOMOR 2, JUNI 2020
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/torani.v3i2.11370

This paper provides an explanation of the condition of phytoplankton in the estuary waters of the west coast of South Sulawesi. The study was carried out on four estuaries namely Tallo, Marusu, Polong and Battoe with spatial sampling from inside the estuary to the outside of the estuary. The results obtained were found in three classes, namely Bacillariophyceae class, Cyanophyceae class, and Dinophyceae class with 19 phytoplankton genera. With an abundance of phytoplankton ranging from 352 - 5304 cells / L, the highest abundance is in the Tallo estuary. Meanwhile, the highest diversity index (H ') was found in Tallo estuary and the highest dominance index (D) was in Tallo estuary. Parameters that characterize high abundance estuaries are nitrate and TSS.

TSS ASSIMILATION CAPACITY IN THE MAMUJU RIVER ESTUARY Noor, Rahmat Januar; Lanuru, Mahatma; Faizal, Ahmad; ., Fathuddin
JFMR (Journal of Fisheries and Marine Research) Vol. 4 No. 3 (2020): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2020.004.03.2

The Mamuju River Estuary is an estuary whose role is to protect coastal ecosystems (mangroves, seagrasses, coral reefs) from the negative effects of intensification of land clearing upstream and coastal. Land clearing for various human needs encourages erosion resulting in high TSS (Total Suspended Solid) concentrations in river water bodies. This study aimed to determine the assimilation capacity of the Mamuju River estuary on TSS pollutants. The results showed that TSS concentrations still met the quality standard for marine biota (mangroves: <80 mg / l) with a lower distribution pattern when getting further away from the river mouth. The flushing time at the study site is 5.6 days so the river and seawater exchange is Â± 65 times per year. The pollutant load was 586.11 tons/month. The value of the assimilation capacity reaches 255.57 tons/month. Based on these results it can be concluded that the Mamuju River estuary has experienced an overload of sediment.

Pelatihan Teknologi Restorasi dan Monitoring Lamun Sebagai Upaya Perbaikan Habitat Sumberdaya Ikan di Kabupaten Pangkep La Nafie, Yayu A; Lanuru, Mahatma; Ambo-Rappe, Rohani; Nurdin, Nurjannah; Amri, Khairul; Banda Selamat, Muhammad
Bambu Laut: Jurnal Pengabdian Masyarakat VOLUME 1, NOMOR 2, OKTOBER 2024
Publisher : Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/bambulaut.v1i2.37151

Ekosistem padang lamun memiliki peranan yang tidak kalah penting dengan mangrove di wilayah pesisir Kelurahan Pundata Baji, Kabupaten Pangkep. Namun, masyarakat belum mengetahui sepenuhya tentang fungsi fisik, ekologis, serta sosial ekonomi ekosistem lamun. Demikian juga dengan pengetahuan dan keterampilan dalam hal restorasi habitat lamun yang telah mengalami kerusakan (degradasi). Dengan demikian, salah satu hal penting dilakukan adalah memberikan penyuluhan, pelatihan, serta pembuatan demplot (percontohan) mengenai teknologi restorasi lamun berbasis masyarakat melalui penanaman (transplantasi) lamun. Selain itu, juga dilakukan pelatihan monitoring ekosistem lamun hasil transplantasi tersebut. Ujicoba transplantasi lamun dilakukan dengan menggunakan 3 metode, yaitu 1) Frame bambu /(modifikasi) TERFS (Transplanting Eelgrass Remotely with Frame Systems, 2) jangkar dengan tegakan tunggal (single shoot) serta 3) kurungan. Ketiga metode tersebut merupakan metode simple dan low-cost sehingga mudah dipelajari dan diaplikasikan oleh kelompok target. Setelah 35 hari, hasil transplantasi menunjukkan 100% tingkat keberlangsungan hidup. Namun, perbedaan panjang daun lamun pada transplantasi yang di kurung (36,11±2,8 cm) adalah lebih rendah dibandingkan ke dua metode lainnya (metode frame bambu 44±5.01cm dan jangkar 47±2,08 cm). Dengan adanya penyuluhan, pelatihan, dan pembuatan demplot, pengetahuan masyarakat target tentang fungsi lamun serta upaya perbaikannya menjadi bertambah. Selain itu, masyarakat menjadi tahu dan terampil dalam hal 1) transplantasi lamun dan 2) monitoring lamun hasil transplantasi. Sebagai tambahan dari kegiatan tersebut adalah tersedianya area penangkapan alternatif di areal penanaman lamun bagi kelompok nelayan di Persisir Pundata Baji.

Impact of Land Use on Oceanography Parameters and Quality of Seaweed Kappaphycus alvarezii in Coastal Waters of South Sulawesi, Indonesia Samawi, Muhammad Farid; Lanuru, Mahatma; Nadir, Fajriansyah; Pratama, Andi Asriadi; Kurniawan, Indra
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 15 No 4 (2025): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.15.4.699

Tulisan ini memberikan informasi mengenai pengaruh penggunaan lahan di Sulawesi Selatan terhadap kandungan unsur hara nitrat dan fosfat di perairan serta kualitas rumput laut Kappaphycus alvarezii yang dipelihara di wilayah pesisir. Pengumpulan data dilakukan di tiga lokasi pantai yaitu Marang di Kabupaten Pangkajene, Sanrobone di Kabupaten Takalar dan Sajoanging di Kabupaten Wajo. Penelitian ini mengukur beban limbah nutrien dari sungai di tiga lokasi dan mengukur pengaruhnya terhadap konsentrasi nitrat dan fosfat di perairan serta klorofil-a, kandungan karagenan, kadar air dan kadar abu pada rumput laut yang dipelihara di perairan pantai. Hasil penelitian menunjukkan bahwa penggunaan lahan berhubungan dengan besarnya beban hara, pada lokasi Sajoanging yang dominan penggunaan lahan pertanian menghasilkan beban nitrat dan fosfat yang tinggi, sedangkan pada lokasi lain relatif lebih rendah. Kandungan unsur hara ini mempengaruhi kondisi oseanografi dan kualitas Kappaphycus alvarezii yang dibudidayakan

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