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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Riset Biologi dan Aplikasinya
Iqram, Muhammad
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology

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Sea urchin utilisation in Eastern Indonesia Tamti, Hartati; Ambo-Rappe, Rohani; Bin Andy Omar, Sharifuddin; Pagalay, Budimawan; Iqram, Muhammad; Renema, Willem; Moore, Abigail Mary
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 28, No 3 (2023): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.28.3.231-240

Abstract

Sea urchins have long been an important component of gleaning invertebrate fisheries and are valued for their highly nutritious gonads. Sea urchin fisheries are often unreported and unregulated, despite increasing indications of overexploitation. Data on the post-harvest utilization of sea urchins are limited, particularly in the Indo-Pacific region. This study at 12 sites across four regions in Indonesia (Sulawesi, Moluccas, Nusa Tenggara, Papua) aimed to provide an overview of sea urchin utilization in eastern Indonesia. Data were collected from July to September 2020 using a questionnaire with a snowballing sampling method. There were 187 respondents (62.6% male and 37.4% female) ranged in age from 3-76 years old, and most had been collecting sea urchins for more than five years. Respondents mostly collected the sea urchins from coral reef or seagrass habitats. Four genera (Tripneustes, Diadema, Echinometra and Echinothrix) were identified. Mean catch ranged from 32 (Makassar) to 169 (Maluku Tengah) individual sea urchin per collection. Most respondents knew local names for sea urchins, especially those they collected. Almost 70% respondents used their catch mainly for home consumption, and only 4.8% respondents mainly selling their catch. Most urchins sold were whole or crudely de-spined, typically fetching IDR 500-1000 each. Additional post-harvest processing before sale included removing the gonads from the test and/or cooking, with a unit price of IDR 5,000-25,000/product. Commonly consumed raw, urchins were sometimes cooked (mostly barbecued). These data indicate a need for efforts towards socio-ecologically appropriate sea urchin conservation and fisheries management to address the widespread indications of increasing exploitation levels and declining sea urchin populations.
Composition of Freshwater Gastropods (Mollusca) in the Midstream of the Cisadane River, West Java, Indonesia Ridwan, Muhammad; Kadri S, Muh.; Reza Sese, Moh.; Iqram, Muhammad; Priawandiputra, Windra
Jurnal Riset Biologi dan Aplikasinya Vol. 7 No. 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrba.v7n2.p118-127

Abstract

Gastropods are important components of freshwater ecosystems, but their diversity and distribution in the Cisadane River, West Java, had not been previously documented. This study investigated the composition and distribution of gastropods at four stations using purposive sampling with 1 × 1 m quadrats. Data were analyzed with the Shannon–Wiener diversity index, Simpson dominance index, Pielou’s evenness index, Kruskal–Wallis test, and ANOSIM to compare community structures among stations, while Spearman’s correlation was applied to examine relationships between species abundance and environmental factors. A total of seven species were recorded: Melanoides tuberculata, Tarebia granifera, Sulcospira testudinaria, Mieniplotia scabra, Clea helena, Radix rubiginosa, and Filopaludina javanica. Station 1 showed the highest diversity (H′ = 1.30) and evenness (E = 0.73), while T. granifera was the most abundant and invasive species. These findings provide the first comprehensive data on freshwater gastropods in the Cisadane River and highlight their potential as bioindicators for conservation and management.
Co-Authors Ambo-Rappe, Rohani Bin Andy Omar, Sharifuddin Hartati Tamti, Hartati Kadri S, Muh. Moore, Abigail Mary Muhammad Ridwan Pagalay, Budimawan Renema, Willem Reza Sese, Moh. WINDRA PRIAWANDIPUTRA, WINDRA