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All Journal Indonesian Journal of Forestry Research Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Perikanan
Iskandar Iskandar
Padjadjaran University
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Engineering

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CORRELATION ANALYSIS BETWEEN SEAWATER INTRUSION AND MANGROVE GREENBELT Endang Hilmi; Cecep Kusmana; Endang Suhendang; Iskandar Iskandar
Indonesian Journal of Forestry Research Vol 4, No 2 (2017): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (81.474 KB) | DOI: 10.20886/ijfr.2017.4.2.151-168

Abstract

Seawater intrusion is an entry process of  seawater to land. Many factors have caused seawater intrusion from freshwater exploitation until mangrove degradation.  Mangrove ecosystem is a type of  forest ecosystem which has an ability to reduce seawater intrusion. This paper analyzes the estimation  and prediction of  seawater intrusion and correlation between widths of  mangrove with seawater intrusion.   The relation analysis between the width of  mangrove greenbelt with seawater intrusion used an equation model to predict seawater intrusion. The research method used sampling technique, system analysis with powersim software, correlation analysis and mathematical method with trend line analysis. Results show that (1) the mangrove density in the coastal area is approximately 50 – 109 trees/ha. (2) Simulation results showed seawater intrusion rate was about 0.20 km year (with mangrove as a component system), but reached 0.3 – 0.4 km/year (without mangrove as a component system). (3) The simulation result also showed that freshwater salinity was estimated to increase from 1.92 ppt to 4.86 ppt. (4) The relation model between seawater intrusion and mangrove greenbelt showed that correlation coefficient was 0.97 with  the equation  seawater intrusion (m) = 2264.9 * exp (-0.009 * the width of  mangrove greenbelt (m)), the correlation of  mangrove width with seawater intrusion was 0.97. (5) Avicennia marina, Avicennia alba, Rhizophora styllosa, Sonneratia alba and Sonneratia caseolaris were the mangrove species that had the best ability to reduce seawater intrusion.
IDENTIFICATION OF HEAVY METAL Cu AND Zn IN THE MEAT OF NILE TILAPIA (Oreochromis niloticus) AT IPAL BOJONGSOANG, BANDUNG REGENCY, WEST JAVA Muhamad Seikei Shojikana; Junianto Junianto; Iskandar Iskandar; Rusky Intan Pratama
Jurnal Perikanan Unram Vol 14 No 4 (2024): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v14i4.1274

Abstract

The Bojongsoang Wastewater Treatment Plant (IPAL) in Bojongsoang District, Bandung Regency, West Java, is a facility that processes wastewater from the city of Bandung. In the IPAL pond, there are Nile tilapia that live there and can serve as bioindicators of water quality. However, these fish are utilized by the surrounding community through fishing and netting for consumption and sale. This study aims to determine the safety level of Nile tilapia (Oreochromis niloticus) meat in the Bojongsoang IPAL based on the content of heavy metals Cu and Zn. The research was conducted from May to October 2024. The method used is a survey method with purposive sampling technique conducted at four pond sample collection locations. The accumulated heavy metal content in the Nile tilapia meat from the Bojongsoang IPAL Treatment Pond is as follows: Cu (0.1649 mg/kg, 0.1199 mg/kg, 0.1896 mg/kg, 0.1825 mg/kg) and Zn (2.5308 mg/kg, 1.9651 mg/kg, 2.3628 mg/kg, 2.5125 mg/kg). The levels of these heavy metals are still below the maximum limits set by Ditjen POM RI in 1989, indicating that the Nile tilapia meat collected from the Bojongsoang IPAL Treatment Pond is still safe for consumption based on its Cu and Zn heavy metal content.
A review on optimizing fish growth using fermented animal by-products for sustainable aquaculture Hasna Nabila Shobihah; Yuli Andriani; Muhamad Fatah Wiyatna; Iskandar Iskandar; Irfan Zidni; Mia Miranti Rustama
Depik Vol 14, No 2 (2025): JUNE 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.2.43418

Abstract

Feed availability is a crucial factor in aquaculture, accounting for approximately 6070% of total production costs. High-quality feed is often expensive due to reliance on imported ingredients. To address this issue, animal-based organic waste presents a promising alternative, given its abundance, underutilization, and high nutritional value when properly processed. This review was conducted from November 2024 to January 2025 using a narrative literature review approach, synthesizing previous publications to identify research gaps and development opportunities. Literature was sourced from national and international scientific databases, including Scopus, ScienceDirect, SpringerLink, and ResearchGate. The study aimed to explore the production of fermented animal by-product meal and its application in aquafeed to enhance fish growth performance. Findings indicate that fermentation significantly improves the nutritional quality of animal waste. Several reviewed studies reported that incorporating fermented by-products such as fish offal, poultry feathers, and blood at inclusion levels of 2025% can improve the growth and survival rates of juvenile fish. Therefore, the optimal use of such ingredients is recommended to reduce feed costs and support the sustainability of aquaculture systems.Keywords:Alternative ingredientsFish wasteChicken Feather WasteBlood WasteFermentationFish feed
Co-Authors Endang Hilmi ENDANG SUHENDANG Hasna Nabila Shobihah Irfan Zidni Junianto Junianto Mia Miranti Rustama Muhamad Fatah Wiyatna Muhamad Seikei Shojikana Rusky Intan Pratama Yuli Andriani