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Journal : Journal of Fisheries

Community Structure of Oceanic Mangrove at Marine Tourism Park of Gili Sulat-Lawang, Eastern Lombok, Indonesia Artiningrum, Novita Tri; Norma Afiati; Max Rudolf Muskananfola; Pujiono Wahyu Purnomo
Jurnal Ilmiah Perikanan dan Kelautan 2026: IN PRESS ISSUE (JUST ACCEPTED MANUSCRIPT, 2026)
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

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Abstract

Graphical Abstract Highlight Research 1. The oceanic mangrove ecosystem of Gili Sulat–Lawang shows moderate density and good ecological condition. 2. Twelve mangrove species from eight families were recorded across the study area. 3. Rhizophora mucronata and R. apiculata dominate all stations. 4. Species distribution is strongly influenced by hydrodynamic conditions and sandy substrates. 5. This study provides baseline data for mangrove conservation in small island marine protected areas.   Abstract Oceanic mangroves of Gili Sulat–Lawang are strongly influenced by high tidal currents and the absence of river sedimentation, resulting in coarse sediment accumulation. Despite their ecological importance, scientific information on oceanic mangroves in Indonesia remains limited. This study aimed to analyze the community structure and species composition of oceanic mangroves in Gili Sulat–Lawang. Mangrove vegetation data were collected at ten stations across Gili Sulat-Lawang using line transect and quadrat sampling methods. At each station, two 100 m transects were established perpendicular to the coastline, with five 10 × 10 m plots per transect. Community structure was assessed using ecological indices, density, and the Important Value Index. This study recorded twelve mangrove species in Gili Sulat-Lawang, highlighting the ecological roles of dominant species of Rhizophora in the oceanic island. The mangrove ecosystem in this area is characterized by a moderate diversity index with high vegetation density. Gili Sulat recorded average densities of 1118 ind/ha of trees, while Gili Lawang showed 1196 ind/ha of tree density. Rhizophora mucronata and R. apiculata consistently exhibited the highest IVI values across all vegetation strata. The PCA shows that sediment texture, nutrient availability, and water quality are the main factors shaping mangrove community structure in the Gili Sulat-Lawang. The dominance of Rhizophora species indicates their strong ecological adaptability in oceanic mangrove environments. This study provides baseline information for mangrove conservation and management on small islands. Further research should focus on long-term monitoring for climate change impacts on mangrove resilience.
Co-Authors . Sumarno Abdul Ghofar Adam Putrarama Suyatno Adriyani Samad Agus Sabdono Ahnan, Muhammad Firhan Maftuh Aji, Fajar Bayu Ali Djunaedi Anggieta, Yayank Dita Anhar Solichin Arif Rahman Aryansyah, Akbar Atami, Sekar Putri Azis Nur Bambang Bambang Sulardiono Bob Suroso Chiesa, Francesco Te David Nugroho Dewi, Desca Estiyani Diah Ayuningrum, Diah Dian Ayu Sapta Nur Utami Dicky Harwanto Djoko Suprapto Fadya Rachmi Puteri Fahmy Barik Farizan Adiya Pratama, Farizan Adiya Febrianto, Sigit Haeruddin Haeruddin Haque, Maharani Zahiratun Helfiana Tiuriska Perangin-angin Hendrawan, Arya Ksatria Fernanda Heni Susiati Indro Sumantri Indro Sumantri Irwani Irwani Iswanto, M. Fajar Fajar Johannes Hutabarat Khasani, Andro Kholilah, Nenik Lulu Adilla Latifah, Lulu Adilla Lusiana Rahayu Widiastuti Martha Wahyuningrum Mauritz L. Tobing Max Rudolf Muskananfola Max Rudolf Muskananfola Max Rudolf Muskananfola Megawati Arsita Putri Misbakul Munir Muhammad Arkan Zaky Rahman Mulkan Nuzapril Niniek Widyorini NOVITA TRI ARTININGRUM Novrizal Soni Riswandha, Novrizal Soni Nur Rochman Nurhuda, Izza Siti nurul latifah Ocky Karna Radjasa Oktavianto Eko Jati Prakoso, Teguh Budi Prijadi Soedarsono Pujiono Wahyu Purnomo Pujiono Wahyu Purnomo Pujiono Wahyu Purnomo Pujiono Wahyu Purnomo, Pujiono Wahyu Purnami, Adelia Puspita, Like Viantika Jala Putra, Muchamad Iqbal Widiansyah Rachmawan, Dicky Setya Rahma, Dwi Aprilia Rahmawati, Laily Agustina Ramadhan, Faishal Retno Hartati Ria Purnama Dewi Sa’diyah, Halimatus Santi, Denita Irma Savitri Taurusiana Setiani, Heny Simangunsong, Erica Siti Rudiyanti Subagiyo Subagiyo Sumarno Sumarno Suradi Wijaya Saputra Surya Dwi Vrananta Sutrisno Anggoro Thomas Triadi Putranto, Thomas Triadi Tonny Bachtiar Ulfah Rismawati, Ulfah Yarianto Sugeng Budi Susilo Yuliana, Eka Yulfa