W. Isroni, N. Mamat, A. Kurniawan
Mangrove ecosystems are critical coastal habitats that sustain diverse marine life by offering shelter, food, and essential breeding grounds for numerous species. However, mangroves are especially important for gastropods, which are mollusks, such as snails and slugs. The aim of this study is to analyze mangrove productivity in various types of mangroves and the bioecological characteristics of gastropods on the northern coast of East Java. A study on the north coast of East Java, Indonesia, found that different types of gastropods live in each area of the mangrove. The types of gastropods in each area change based on the type of surface, soil, tree trunks, or leaves in that part of the mangrove. The Shannon-Wiener diversity index (H’) showed the highest value of 1.912 ± 0.072 and the lowest of 1.028 ± 0.127, and the structure of the community in each mangrove zone was different. The evenness index also varies, with Avicenia alba, Bruguiera gymnorhiza, and Sonneratia alba having the highest values. These results show that each part of the mangrove is important for keeping gastropod populations diverse, with different numbers and types of species depending on how far each area is from the ocean. The relationship between mangrove density and sediment organic matter content has a significant impact on the abundance of gastropods. This information can help with efforts to protect mangrove habitats and the many creatures that rely on them. © 2026, ALÖKI Kft., Budapest, Hungary.
Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Lembah Pantai, Federal Territory, Kuala Lumpur, 50603, Malaysia; Coastal and Marine Research Centre, University of Brawijaya, Jawa Timur, Malang, Indonesia
