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Abstrak (Bhs. Indonesia)

Karakteristik fraksi sedimen berperan penting dalam menentukan substrat 
ekosistem mangrove, terutama karena fraksi halus mampu menyimpan bahan 
organik yang mendukung produktivitas lingkungan pesisir. Penelitian ini 
bertujuan untuk menganalisis karakteristik fraksi sedimen dan menganalisis 
kandungan bahan organik dalam sedimen di kawasan Hutan Payau Tritih 
Kulon, Kabupaten Cilacap. Metode penelitian dilaksanakan dengan metode 
purposive sampling. Parameter yang diamati meliputi fraksi sedimen dengan 
metode pengayakan dan pemipetan, serta kandungan bahan organik
menggunakan metode Loss on Ignition (LOI). Hasil menunjukkan bahwa sedimen 
di seluruh stasiun umumnya didominasi fraksi debu (silt). Kandungan bahan 
organik sedimen di seluruh stasiun memiliki rata-rata sebesar 16,3%, dengan 
kecenderungan lebih tinggi pada stasiun yang dekat dengan vegetasi mangrove. 
Penelitian ini menegaskan bahwa fraksi sedimen yang ditemukan di tiga stasiun 
yaitu pasir, debu, dan liat. Kandungan bahan organik tertinggi terdapat pada 
stasiun 1 karena tingkat gangguan antropogenik yang rendah, dan kandungan 
bahan organik terendah di stasiun 3 karena lingkungan yang kurang 
mendukung akumulasi bahan organik

Abtrak (Bhs. Inggris)

The characteristics of sediment fractions play an important role in determining mangrove 
ecosystem substrates, particularly because fine fractions are able to retain organic matter 
that supports coastal environmental productivity. This study aims to analyze sediment 
fraction characteristics and organic matter content in sediments in the Tritih Kulon 
Brackish Forest area, Cilacap Regency. The research was conducted using a purposive 
sampling method. Observed parameters included sediment fractions analyzed using 
sieving and pipette methods, and organic matter content measured using the Loss on 
Ignition (LOI) method. The results showed that sediments at all stations were generally 
dominated by the silt fraction. The organic matter content of sediments at all stations had 
an average of 16.3%, with a tendency to be higher at stations closer to mangrove 
vegetation. This study confirms that the sediment fractions found at the three stations 
consisted of sand, silt, and clay. The highest organic matter content was found at Station 
1 due to low levels of anthropogenic disturbance, while the lowest organic matter content 
was observed at Station 3 because environmental conditions were less favorable for the 
accumulation of organic matter.

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Pembimbing 1

Pembimbing 2

Pembimbing 3

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