Decomposition Rate of Avicennia marina Leaf Litter and Its Effect on Milkfish Growth in Sicanang Belawan Medan: will be presented at Thursday, 22 may 2025, 14.00 (GMT +7)

Yunasfi Yunasfi; Muhammad Akbar Ilahi Saragih; Budi Utomo; Patar Simangunsong

Authors

Yunasfi Yunasfi Universitas Sumatera Utara Author
Muhammad Akbar Ilahi Saragih Universitas Sumatera Utara Author
Budi Utomo Universitas Sumatera Utara Author
Patar Simangunsong Universitas Sumatera Utara Author

Keywords:

Aspergillus sp.1, Avicennia marina, decomposition, mangrove, milkfish

Abstract

Mangrove forests in North Sumatra, Indonesia, are widespread on the east coast such as Karang Gading, Pangkalan Brandan, Belawan and others. The mangrove environment is influenced by biotic and abiotic factors in controlling the availability of nutrients for plants. Fungi have an important role in the ecosystem as decomposers, both as plant symbionts, and contribute greatly to ecological and biogeochemical processes. The leaf litter decomposition process supports ecosystem productivity by producing simple nutrients needed for the growth of mangroves and other organisms around them.. This study was conducted from August to November 2024 with the aim of determining the role of fungi in leaf litter decomposition, seeing the ability of leaf litter that has been applied with fungi to increase the growth of milkfish seeds. The method used is the use of nylon litter bags with a mesh of 1 x 1 mm, Avicennia marina leaf litter, Aspergillus sp.1 fungi, and milkfish seeds. The rate of decomposition of A. marina leaf litter is 9.12 / year, the weight of milkfish given litter with Aspergillus sp. 1 is higher, which is 48 grams compared to the control with a weight of 19.9 grams.