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All Journal Indonesian Journal of Forestry Research Omni-Akuatika PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Endang Hilmi
Jenderal Soedirman University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Social Sciences

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The Distribution of Lead Accumulation (Soil, Water and Mangrove Vegetation) to Conserve Segara Anakan Lagoon Endang Hilmi; Asrul Sahri Siregar; Agung Dhamar Syakti
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (880.688 KB) | DOI: 10.20884/1.oa.2017.13.2.83

Abstract

Segara Anakan Lagoon  is a  specific lagoon as dispose industry waste area, i.e. lead waste.  Distribution of lead accumulation in vegetation, soil and water can explain pollution status in Segara Anakan Lagoon.  This study aims to analysis lead accumulation distribution  (soil, water and vegetation),  bioaccumulation factor (BAF), translocation factor (TF), leaf morphometric (the lead effect for mangrove vegetation), and to develop pre-design a mangrove  zoning based on lead accumulation. The results showed that lead accumulation in Segara Anakan Lagoon (SAL) was 0.177 – 0.233 mg/l (water),  0.320 – 0.780 mg/kg (soil),  4.80–8.67 mg/kg (mangrove roots), for stem between 2.48–6.96 mg/kg (mangrove stem), and 1.48–4.76 mg/kg (mangrove leaf).  BAF of mangrove vegetation scored between 22.2–40.1 and TF between 0.9–1.3. The lead accumulation of soil depths were 8.89 mg/kg (0-50 cm) to 0.56 mg/kg (150-200 cm). The effect of  lead accumulation was observed as leaf damage between 2-60 % of surface leafs. And based on best lead accumulation of mangrove vegetation showed that the first mangrove zoning was Rhizophora apiculata, Bruguiera sexangula, Aegiceras corniculatum and  Sonneratia caseolarisKeyword: lead accumulation; mangrove capacity; bioaccumulation factor; translocation factor;  lead effect
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.
Analisis Ekonomi Kepiting Bakau (Scylla sp.) Melalui Sistem Pengepul di Segara Anakan Bagian Barat Cilacap Teuku Junaidi; Endang Hilmi; Benny Diah Madusari; M. Haris Williansyah
Pena Akuatika Jurnal Ilmiah Perikanan Dan Kelautan Vol 21, No 2 (2022): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/penaakuatika.v21i2.1909

Abstract

Ekosistem mangrove memiliki jasa ekosistem sebagai habitat bagi kepiting bakau (Scylla sp.). Kepiting bakau Scylla sp. merupakan organisme perairan yang memiliki nilai ekonomis yang tinggi yang menjadi sumber pendapatan bagi masyarakat sekitarnya termasuk di wilayah Segara Anakan bagian Barat. Penelitian ini bertujuan untuk menganalisis nilai ekonomi kepiting bakau Scylla sp dari system pengepul sebagai bentuk perdagangan kepiting bakau Scylla sp. Metode yang digunakan dalam penelitian ini adalah analisis ekonomi melalui pendekatan analisis cash flow. Hasil penelitian ini menunjukan bahwa pendapatan pengepul mencapai Rp. 465.360.333 dengan total biaya mencapai  Rp 438.045.861 serta nilai keuntungan yang didapat pengepul sekitar Rp. 27.314.472. Hasil analisis kelayakan usaha, menunjukan bahwa nilai nilai pendapatan saat ini  (NPV) rata-rata Rp. 11.367.986 nilai suku bunga yang dapat diberikan (IRR) mencapai 42 % dan rasio pendapatan dengan biaya (BCR)  mencapai 1,74.  Dari analisis kelayakan tersebut menunjukan bahwa system pengepul bagi komoditi kepiting bakau Scylla sp layak untuk dilakukan
Co-Authors Agung Dhamar Syakti Asrul Sahri Siregar Benny Diah Madusari ENDANG SUHENDANG Iskandar Iskandar M. Haris Williansyah Teuku Junaidi