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All Journal Fish Scientiae : Jurnal Ilmu-Ilmu Perikanan dan Kelautan Jurnal Cakrawala Maritim
Al Hazman, Muhammad
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering

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Green Action sebagai Upaya Rehabilitasi Ekosistem Mangrove di Kelurahan Romokalisari, Surabaya Alwi, Alwi Sina Khaqiqi; Rahayuningsih, Siti; Al Hazman, Muhammad; Widyastuti, Indri ika; Sholikah, Evi Nafiatus; Gastriani, Ovi Prina; Wibowo, Sekarsari; Nisazarifa, Adristi; Pujiputra, Anggarjuna Puncak; Sukarno, Friska Intan; Brian, Thomas; Parman
Jurnal Cakrawala Maritim Vol. 8 No. 2 (2025): Jurnal Cakrawala Maritim
Publisher : P3M Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35991/jcm.v8i2.40

Abstract

Mangroves have several functions, including maintaining biological balance in coastal ecosystems and tourism. On the other hand, mangroves are also very vulnerable to natural disturbances, anthropogenic, land conversion, and even pollution from various human activities. The success of mangrove planting activities does not only depend on the selection of the type of mangrove to be planted, but also on the selection of a suitable location to support its growth. Mangroves in Romokalisari Village, Surabaya are currently still relatively few. This needs to be planted because the mangroves function as wave breakers and tourist attractions. Mangrove planting activities in Romokalisari Village, Surabaya, were carried out by residents, lecturers and students of the Surabaya State Polytechnic of Shipping. The results of the mangrove planting are expected to have a positive impact on Romokalisari Village, Surabaya and its surroundings.
ANALYSIS OF POLLUTION LOAD IN THE WELANG RIVER DOWNSTREAM BASED ON ORGANIC AND HEAVY METAL PARAMETERS Widyastuti, Indri Ika; Al Hazman, Muhammad; Sukarno, Friska Intan
Fish Scientiae Vol 15 No 1 (2025): Edisi Juni
Publisher : Faculty of Fisheries and Marine Resources of Lambung Mangkurat University-South Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/fishscientiae.v15i1.245

Abstract

To assess water pollution in the downstream of the Welang River, this research examines several key water quality indicators, including organic indicators (DO, COD, TSS) and selected toxic substances such as ammonia, chromium, and sulfide. Water samples were collected from four monitoring stations representing the estuarine zone and analyzed using the Pollution Index method in accordance with Government Regulation No. 22 of 2021. The results showed that DO levels varied between 3,6-4,2 mg/L, with COD levels reaching up to 25 mg/L, respectively. The highest level of TSS concentration was recorded at Station 4 (200 mg/L), while the highest ammonia level at Station 2 (1,38 mg/L). Chromium and sulfide levels varied between 0,015–0,031 mg/L and 0,0016–0,0029 mg/L. By integrating both organic and toxic parameters within a unified assessment framework, this approach offers a more detailed characterization of estuarine pollution—an area often underrepresented in national water quality monitoring programs. The analysis indicates that all stations are moderately to heavily polluted. These conditions are likely caused by a combination of domestic waste, agricultural runoff, and effluents from nearby industrial activities. These insights are intended to support better environmental planning and pollution control strategies, especially in coastal and estuarine zones under growing human pressure.
Co-Authors Alwi Sina Khaqiqi Brian, Thomas Gastriani, Ovi Prina Nisazarifa, Adristi Parman Pujiputra, Anggarjuna Puncak Rahayuningsih, Siti Sholikah, Evi Nafiatus Sukarno, Friska Intan Wibowo, Sekarsari Widyastuti, Indri Ika