COMMUNITY STRUCTURE AND HEALTHINESS OF MANGROVE IN MIDDLEBURG-MIOSSU ISLAND, WEST PAPUA

Jurnal Ilmu dan Teknologi Kelautan Tropis

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Title COMMUNITY STRUCTURE AND HEALTHINESS OF MANGROVE IN MIDDLEBURG-MIOSSU ISLAND, WEST PAPUA
STRUKTUR KOMUNITAS DAN KONDISI KESEHATAN MANGROVE DI PULAU MIDDLEBURG-MIOSSU, PAPUA BARAT
 
Creator Nurdiansah, Doni
Dharmawan, I Wayan Eka
 
Subject community structure
interpolation
mangrove
mangrove health index
zonation
interpolasi
mangrove indeks kesehatan mangrove (MHI)
struktur komunitas
zonasi
 
Description Ekosistem mangrove memiliki peranan penting bagi eksistensi dan penyediaan jasa ekosistem kepada masyarakat di pulau kecil. Fungsionalitas mangrove sangat tergantung dari ukuran, struktur komunitas dan kualitas ekosistem. Penelitian tentang penilaian kualitas struktur komunitas mangrove pulau kecil telah dilakukan di Pulau Middleburg-Miossu sebagai rangkaian dari Ekspedisi Nusa Manggala 2018. Penelitian ini bertujuan untuk menganalisis struktur komunitas dan indeks kesehatan mangrove (MHI) mangrove di pulau tersebut yang dihubungkan dengan indeks-indeks vegetasi berbasis pengindraan jauh. Lokasi penelitian dibagi menjadi empat zona (Z1-Z4) dan hasil penelitian menunjukkan bahwa zona terdepan didominasi oleh jenis Sonneratia alba (INP 263,32%) dengan persentase tutupan kanopi < 50%, ukuran diameter > 20 cm dan ketinggian tegakan yang lebih rendah. Sementara itu, tiga zona lainnya ke arah darat, didominasi oleh jenis Ceriops tagal dengan persentase tutupan kanopi >80%, serta kerapatan pancang yang cukup tinggi. Secara keseluruhan, kondisi kesehatan mangrove di lokasi penelitian termasuk dalam kategori sedang/cukup baik dengan rentang nilai MHI 38,7-60,7%. Berdasarkan analisis AIC, kombinasi indeks vegetasi NBR, GCI, SIPI dan ARVI menunjukkan nilai koefisien regresi yang paling tinggi untuk memprediksi nilai MHI, yaitu 0,831. Interpolasi nilai MHI berdasarkan model regresi linier terbaik menunjukkan bahwa 6,56 ha mangrove di lokasi penelitian atau 40,74% termasuk dalam kategori sehat.
Mangrove ecosystem plays important role in a small island’s existence and provided ecosystem services. Its functionality highly depends on the size, community structure, and ecosystem quality. A field study on the mangrove quality in a small island was conducted on Middleburg-Miossu Island as a series of Nusa Manggala Expedition 2018. The study was aimed to analyze the community structure and mangrove health index (MHI) of mangroves on the island related to remote sensing-based vegetation indices. Mangrove area was divided into four zones (Z1-Z4). The study results showed that the outmost zone was dominated by Sonneratia alba (IVI 263.32%), less than 50% of canopy coverage, more than 20 cm of diameter, and a lower height. Meanwhile, the other three landward zones were dominated by type C. tagal with more than 80% of canopy coverage and higher sapling density. Based on the MHI value, mangrove in Middleburg-Miossu island was categorized into moderate ranging from 38.7 to 60.7%. Based on AIC analysis, a combination of NBR, GCI, SIPI, and ARVI vegetation indexes showed the highest regression coefficient, R2-adjusted, for predicting MHI, which was 0.831. Interpolation of the predicted MHI value from the best model showed that 6.56 ha mangroves at the research site or 40.74% were in the healthy condition.
 
Publisher Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University
 
Date 2021-04-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://journal.ipb.ac.id/index.php/jurnalikt/article/view/34484
10.29244/jitkt.v13i1.34484
 
Source Jurnal Ilmu dan Teknologi Kelautan Tropis; Vol. 13 No. 1 (2021): Jurnal Ilmu dan Teknologi Kelautan Tropis; 81-96
2620-309X
2087-9423
10.29244/jitkt.v13i1
 
Language eng
 
Relation https://journal.ipb.ac.id/index.php/jurnalikt/article/view/34484/21593
 
Rights Copyright (c) 2021 Jurnal Ilmu dan Teknologi Kelautan Tropis
https://creativecommons.org/licenses/by-sa/4.0
 

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