Jurnal Biodjati 9(1):154-171, May 2024 http://journal.uinsgd.ac.id/index.php/biodjati e-ISSN : 2541-4208 p-ISSN : 2548-1606 Fish Community Structure in The Coastal Mangrove Ecosystem of Cemara Kulon Village Indramayu Regency, Indonesia Titin Herawati *1 , Muhamad Pauwwaz 2 , Zahidah 3 , Izza Mahdiana Apriliani 4 , Ayi Yustiati 5 , Atikah Nurhayati 6 Citation Herawati, T., Pauwwaz, M., Zahidah, Apriliani, I. M., Yustiati, A., & Nurhayati, A. (2024). Fish Community Structure in The Coastal Mangrove Ecosystem of Cemara Kulon Village Indramayu Regency, Indonesia. Jurnal Biodjati, 9(1), 54-171. DOI: 10.15575/biodjati.v9i1.34123 Abstract. The mangrove ecosystem of Cemara Kulon Village has the potential for fishery resources which has decreased in line with var- ious anthropogenic activities. This study aims to determine the com- position of fish and analyze the status of the fish community struc- ture and its relation to the physical-chemical aspects of the waters in the mangrove ecosystem of Cemara Kulon Village. This research was conducted over a period of three months in the mangrove eco- system of Cemara Kulon Village. The method used in this research was descriptive quantitative purposive and composite sampling at 3 research stations. Parameters observed in this study were relative abundance, diversity, uniformity, dominance, and the relationship between community structure and aquatic physico-chemical parame- ters. During the study, 508 fish were caught, consisting of 20 species from 16 families. The value of diversity was in the moderate category with a ranged of 1.87-2.50; the uniformity value was in the moderate category with a ranged of 0.41-0.46 and the dominance value was in the low category with a ranged of 0.11-0.22. Based on the results of the Canonical Correspondence Analysis (CCA) revealed that fish diversity was affected by light transparency and DO, the uniformity of fish was affected by temperature, and the dominance of fish was affected by ammonia. The fish community structure was categorized as unstable which was influenced by water quality. Keywords: analysis, canonical correspondence, diversity, uniformity 1 Master Program of Marine Conservation Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. Jl. Soekarno KM 21, Sumedang, West Java, Indonesia, 45363. 1,2,3,4,5,6 Department Fisheries, Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. Jl. Raya Soekarno KM 21, Sumedang, West Java, Indonesia, 45363. e-mail: 1* titin.herawati@unpad.ac.id, 2 pauwwazm13@gmail.com, 3 zahidah@unpad.ac.id, 4 izza.mahdiana@unpad.ac.id, 5 yustiati@unpad.ac.id, 6 atikah.nurhayati@unpad.ac.id *Corresponding author Received: March 18, 2024 Revise from: April 17, 2024 Accepted: May 07 2024 Copyright © 2024 Jurnal Biodjati This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/)