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Adnan S Wantasen
FPIK Unsrat Manado
Earth & Planetary Sciences

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STRUKTUR KOMUNITAS MANGROVE DI DESA BONE BARU, KECAMATAN BANGGAI UTARA, KABUPATEN BANGGAI LAUT, SULAWESI TENGAH Prengky P Babo; Calvyn F A Sondak; James J H Paulus; Joshian NW Schaduw; Ping Astony Angmalisang; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.29951

Abstract

Mangrove is one of plants that can grow well on the coast which are affected by tides.Bone Baru village is located in North Banggai District, Banggai Laut Regency, Central Sulawesi Province which has area that about 840 ha and has mangrove area reaching 16.56 ha. This research was conducted from February to April 2020. The purpose of this research are to identify the types of mangroves and analyzing the structure of the mangrove community which include density, relative density, frequency, relative frequency, coverarge, relative coverage, importance value index, and diversity index. The data were analyzed using Microsoft Excel. Based on the results this study obtained 4 types of mangroves consisting of Bruguiera gymnorrhiza, B. cylindrica, Rhizophora mucronata, and Lumnitzera littorea. The highest relative density was 0.13 ind / m2 and the relative density was 91.83% the highest frequency type and the frequency relative value were 5 ind / m2 and 52.63%respectively. The highest mangrove cover was 3.79 m2 with relative cover of 52.21%. The highest important value index was 227.72% . The highest diversity index was found at station 2 with an average value (H ') of 0.69.Keywords: mangrove, community structure, habitat, BanggaiABSTRAKMangrove merupakan kelompok tumbuhan yang dapat tumbuh dengan baik di pesisir pantai yang dipengaruhi oleh pasang surut air laut. Penelitian ini dilakukan di desa Bone Baru, Kecamatan Banggai Utara, Kabupaten Banggai Laut, Provinsi Sulawesi Tengah yang memiliki luas wilayah mencapai 840 ha dan memiliki luas area mangrove mencapai 16,56 ha. Penelitian ini dilakukan dari bulan Februari-April 2020 dengan menggunakan metode Line Transect. Tujuan dari penelitian ini adalah mengidentifikasi jenis-jenis mangrove dan menganalisa struktur komunitas mangrove Data yang diambil meliputi kerapatan jenis, kerapatan relatif jenis, frekuensi jenis, frekuensi relatif jenis, penutupan jenis, penutupan relatif jenis, indeks nilai penting, dan indeks keanekaragaman yang kemudian di analisa dengan bantuan program komputer Microsoft Excel. Berdasarkan hasil penelitian ditemukan 4 jenis mangrove yaitu Bruguiera gymnorrhiza, Rhizophora mucronata, Lumnitzera littorea dan Bruguiera cylindrica. Kerapatan jenis tertinggi 0,13 ind/m2 dan kerapatan relatifnya 91,83%. Frekuensi jenis tertinggi dengan nilai 5 ind/m2 relatifnya 52,63%, penutupan jenis tertinggi dengan nilai 3,79 m2 dan relatfnya 52,21%, indeks nilai penting tertinggi dengan nilai 227,72% dan Nilai indeks keanekaragaman tertinggi ditemukan pada stasiun 2 dengan nilai ratarata (H’) 0,69.Kata kunci: mangrove, strukture komunitas, habitat, Banggai
ANALISIS STRUKTUR KOMUNITAS MANGROVE DI KAWASAN SEKITAR PT. CONCH KABUPATEN BOLAANG MONGONDOW George L Pandeirot; Antonius P Rumengan; Carolus P Paruntu; Surya Darwisito; Medy Ompi; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.30000

Abstract

This research was conducted for four months of April-July 2020. The purpose of this study was to determine species density, species relative density, species frequency, species relative frequency, species cover, species relative cover, index of the importance of mangrove species in the area around PT. Conch Lolak District, Bolaang Mongondow Regency, North Sulawesi Province. This research was conducted for four months of April-July 2020. The method used was a quadratic plot of 6 stations. Data collection at each station was made with a plot size of 10 × 10 m2 to measure the diameter of a tree at breast height (DBH), which has a minimum trunk circumference of 16 cm. The results showed that there were five types of mangroves, namely R. apiculata, R. mucronata, B. gymnorhiza, S. alba, and X. granatum. The highest relative density of species at station 2, namely R. mucronate 62.96%, while the lowest value at station 3, namely R. mucronata 8.77%, the highest relative frequency value at station 4, namely R. mucronata 33.33%, whereas the lowest value was at station 5, namely B. gymnorhiza 25.00%, the highest relative closure value was at station 5, namely R. mucronata 30.91%, while the lowest was at station 2, namely R. apiculata 12.88%, and the important value index the highest was at station 3, namely R. apiculata 138.09% and the lowest value was at station 5, namely X. granatum 35.05%.Kata Kunci: Mangrove, Structure in areas around PT. Conch. Conch, Rhizopora Abstrak Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Tujuan penelitian ini adalah untuk mengetahui kerapatan jenis, kerapatan relatif jenis, frekuensi jenis, frekuensi relatif jenis, penutupan jenis, penutupan relatif jenis, indeks nilai penting jenis mangrove yang ada di kawasan sekitar PT. Conch Kecamatan Lolak, Kabupaten Bolaang Mongondow, Provinsi Sulawawesi Utara. Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Metode yang dipakai adalah plot kuadrat sebanyak 6 stasiun. Pengambilan data pada setiap stasiun dibuat plot dengan ukuran 10 × 10 m2 untuk mengukur diameter pohon setinggi dada (DBH) yang memiliki lingkar batang minimal 16 cm. Hasil penelitian menunjukkan bahwa ada 5 jenis mangrove yaitu R. apiculata, R. mucronata, B. gymnorhiza, S. alba dan X. granatum. Kerapatan relatif jenis tertinggi pada stasiun 2, yaitu R. mucronata 62,96%, sedangkan nilai terendah pada stasiun 3, yaitu R. mucronata 8,77%, nilai Frekuensi relatif jenis tertingi pada stasiun 4, yaitu R. mucronata 33.33%, sedangkan nilai terendah pada stasiun 5, yaitu B. gymnorhiza 25.00%, nilai Penutupan relatif jenis tertinggi pada stasiun 5, yaitu R. mucronata 30,91%, sedangkan terendah pada stasiun 2, yaitu R. apiculata 12,88%, dan Indeks nilai penting tertinggi pada stasiun 3, yaitu R. apiculata 138,09% dan nilai terendah pada stasiun 5, yaitu X. granatum 35,05%.Kata Kunci: Mangrove, kawasan sekitar PT. Conch, Rhizopora  
Co-Authors Antonius P Rumengan Calvyn F. A. Sondak, Calvyn F. A. Carolus P Paruntu George L Pandeirot James J H Paulus Joshian NW Schaduw Medy Ompi Ping Astony Angmalisang Prengky P Babo Surya Darwisito