Analisis Indeks Nilai Penting (INP) Komunitas Mangrove Tingkat Pohon di Pulau Nanga Sira, Kabupaten Sumbawa
Kata Kunci:
Konservasi; Mangrove; Indeks Nilai PentingAbstrak
Penelitian ini bertujuan untuk menganalisis struktur komunitas mangrove tingkat pohon di Pulau Nanga Sira, Kabupaten Sumbawa, melalui analisis Indeks Nilai Penting (INP). Pengamatan dilakukan menggunakan metode transek kuadran dengan ukuran 10 x 10 meter pada dua stasiun pengamatan. Hasil identifikasi mangrove menunjukkan terdapat dua spesies mangrove tingkat pohon yang menyusun komunitas mangrove di kedua stasiun, yakni Avicennia alba dan Bruguiera cylindrica. Hasil analisa INP menunjukan dominasi yang sangat signifikan dari spesies Avicennia alba yang ditandai dengan nilai INP sebesar 254,51 pada stasiun 1 dan 215,80 pada stasiun 2. Sebaliknya, Bruguiera cylindrica memiliki INP yang jauh lebih rendah, yaitu 45,49 dan 84,20. Temuan ini mengindikasikan bahwa Avicennia alba merupakan spesies dominan dalam ekosistem mangrove Pulau Nanga Sira, memiliki pengaruh yang besar terhadap struktur komunitas, dan berperan penting dalam menjaga keseimbangan ekosistem. Hasil penelitian ini memberikan dasar yang kuat untuk upaya konservasi dan pengelolaan mangrove di wilayah tersebut.
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