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All Journal Journal of Aquatropica Asia Jurnal Perikanan
La Ode Wahidin
Program Studi Ilmu Kelautan, Fakultas Pertanian Perikanan dan Kelautan, Universitas Bangka Belitung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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LAJU PERTUMBUHAN DAN PERAMETER LINGKUNGAN BUDIDAYA RUMPUT LAUT Eucheuma cottonii METODE RAKIT APUNG DI PULAU SEMUJUR, BANGKA TENGAH La Ode Wahidin; Rudiansyah; Rully Bintan Samudra; Muhammad Royansyah
Journal of Aquatropica Asia Vol 11 No 1 (2026): Journal of Aquatropica Asia
Publisher : Program Studi Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/kj2y6380

Abstract

This study aimed to analyze the growth rate of Eucheuma cottonii and evaluate environmental parameters in a floating raft cultivation system at Semujur Island, Central Bangka. The study was conducted from September to November 2025 using seedlings obtained from South Lampung. Observed parameters included biomass growth, specific growth rate (SGR), temperature, salinity, dissolved oxygen, current velocity, and tidal conditions. The results showed that the floating raft method provided good growth performance. During the first 30-day cultivation period, biomass increased from 1,400 g to 2,500 g with a daily SGR of 1.93%. In the following 30-day period, biomass increased to 6,500 g, representing a 160% increase with a daily SGR of 3.19%. The improved growth in the second phase indicated seed adaptation to local environmental conditions. Water quality parameters during the study were within suitable ranges for seaweed growth, with temperature of 29–33°C, salinity of 31–32 ppt, dissolved oxygen of 6.0–6.8 mg/L, and current velocity of 0.21–0.27 m/s. Based on the findings, Semujur Island has a strong potential for cultivating the species respecting to the local environmental condition.
ECONOMIC VALUATION OF THE DIRECT BENEFITS OF CAPTURE FISHERIES AND THE CONTRIBUTION OF MANGROVES FOR FISHERMEN OF BATU ITAM VILLAGE, BELITUNG Yolanda Yolanda; Umroh Umroh; La Ode Wahidin
Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1632

Abstract

The coastal area of Batu Itam Village possesses significant potential in natural resources and environmental services, along with a high level of biodiversity. This study aims to determine the direct economic benefits of capture fisheries within the mangrove ecosystem and assess the contribution of these direct economic values to household incomes in Batu Itam Village. The research employs a quantitative descriptive methodology and was conducted in June 2024. Respondents were selected using snowball sampling and census methods. The study involved two groups: 27 mangrove fishermen identified through a census approach and 20 general fishermen selected using the Slovin formula. Primary data were collected via respondent interviews, while secondary data were obtained through literature reviews. Mangrove area measurements were conducted spatially using Sentinel-2A satellite data. The findings reveal that the direct economic value of the mangrove ecosystem in Batu Itam Village amounts to IDR 1,376,670,000 per year, with an average of IDR 275,334,000 annually. This value is supported by the mangrove ecosystem's area of 205.13 hectares. Among the resources, fish provide the highest direct economic benefit compared to squid, crabs, shrimp, and shellfish. The contribution of income derived from the mangrove ecosystem constitutes 74% of the total household income for fishermen in Batu Itam Village
Co-Authors Muhammad Royansyah Rudiansyah Rully Bintan Samudra Umroh Umroh Yolanda Yolanda