Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Journal of Fish Health Jurnal Perikanan
Muhammad Marzuki
Aquaculture Study Program, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram
Agriculture, Biological Sciences & Forestry

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
ANALISIS LAJU PERTUMBUHAN DAN FREKUENSI MOULTING KEPITING BAKAU (Scylla serrata) DENGAN SUBSTRAT PEMELIHARAAN YANG BERBEDA Asti Amalia; Laily Fitriani Mulyani; Muhammad Marzuki
Vol 16 No 3 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i3.2289

Abstract

Mud crab (Scylla serrata) is a high-value fishery commodity, but the success of its culture is still influenced by growth and moulting processes. This study aimed to analyze the effects of different rearing substrates on the growth rate, moulting frequency, and moulting time of mud crab. The study was conducted at the Dakota Crab Culture Facility, Mataram City, and the Aquaculture Environment Laboratory, Aquaculture Study Program, University of Mataram. An experimental method was used with two treatments, namely P1, a beach sand substrate, and P2, a beach sand substrate with the addition of mangrove leaves. Rearing was carried out in crab boxes connected to a Recirculating Aquaculture System (RAS). The main parameters included moulting frequency, moulting time, absolute weight gain, absolute length growth, Specific Growth Rate (SGR), and Survival Rate (SR). The data were analyzed using a twosample t-test assuming unequal variances at the 5% level. The results showed that substrate differences had no significant effect on any parameter (p>0.05). Descriptively, treatment P2 produced a higher moulting frequency of 0.500±0.534 times/day than P1 at 0.375±0.517 times/day. Moulting time in P2 was also slightly faster, at 38.00±16.4 days, whereas P1 was 39.67±11.3 days. Thus, the combination of beach sand and mangrove leaves tended to be better for moulting frequency and moulting time, but the differences were not statistically significant. Keywords: Growth; Mangrove Leaves; Moulting; Moulting Time; Mud Crab; Substrate
The Effectiveness of Gracilaria sp. as a Biofilter in Reducing Aquaculture Waste Based on Planting Location in the Waters of Ujung Betok, East Lombok Septiana Dwiyanti; Bagus Dwi Hari Setyono; Awan Dermawan; Muhammad Sumsanto; Muhammad Marzuki; Arman Ainul Ramdani
Journal of Fish Health Vol. 6 No. 3 (2026): Journal of Fish Health
Publisher : Study Program of Aquaculture, Department of Fisheries and Marine Science, Faculty of Agriculture, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfh.v6i3.11857

Abstract

Aquaculture waste can increase dissolved inorganic nutrient concentrations, making seaweed-based treatment an important component of integrated biological nutrient management. This study aimed to evaluate strategic planting locations of Gracilaria sp. around floating net cages and assess its effectiveness as a natural biofilter for reducing nitrogenous waste in Ujung Betok waters, East Lombok. A Completely Randomized Design (CRD) was applied with three planting-distance treatments and three replicates. Total Ammonia Nitrogen (TAN) concentrations ranged from 0.29–0.31 mg/L at the beginning and 0.24–0.29 mg/L at the end of the 30-day culture period. ANOVA showed no significant difference in initial TAN among treatments (p = 0.868), whereas final TAN differed significantly among planting locations (p = 0.001). Final total nitrogen content in Gracilaria sp. tissue ranged from 0.287–0.330%, with the highest value in T2 (0.330 ± 0.050%), followed by T3 (0.303 ± 0.006%) and T1 (0.287 ± 0.015%). Planting location did not significantly affect tissue total nitrogen content (p > 0.05). Tissue nitrogen reduction was 13.03% in T1, 0.00% in T2, and 8.18% in T3. TAN reduction was highest in T1, decreasing from 0.31 to 0.24 mg/L or 22.58%, followed by T2 at 3.33%, while T3 showed no reduction. These results indicate that Gracilaria sp. can contribute to nitrogen removal, with the 25 m planting location showing the best biofiltration performance.
Co-Authors Arman Ainul Ramdani Asti Amalia Awan Dermawan Bagus Dwi Hari Setyono Laily Fitriani Mulyani Muhammad Sumsanto Septiana Dwiyanti