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Acta Aquatica: Aquatic Sciences Journal
Published by Universitas Malikussaleh
ISSN : 24069825     EISSN : 26143178     DOI : -
Core Subject : Science, Education,
Materials Science & Nanotechnology Other
Acta Aquatica: Aquatic Sciences Journal is a scientific open access journal in the field of aquatic sciences, published periodically (April and October) by the Institute of Research and Community Service (LPPM) Universitas Malikussaleh (Malikussaleh University) in cooperation with Marine Center Universitas Malikussaleh, Department of Aquaculture Universitas Malikussaleh and Department of Marine Science Universitas Malikussaleh. Acta aquatica are publish original research, overviews and reviews relating to aquatic environments (wetlands, freshwater and marine waters) and the border limits of these environmental systems and the impacts of human activities on the environmental systems. Acta Aquatica has a related studies in aquatic bioecology, aquaculture, hydrology, biodiversity of aquatic biosphere, oceanology, exploitation and exploration technology of aquatic resources, fisheries product technology, aquatic microbiology, aquatic modeling, aquatic geographic information systems, and socio-economic of aquatic resources.
Arjuna Subject : -
Articles 361 Documents
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Evaluation of stocking density effects in closed wet transport on juvenile Asian Redtail catfish (Mystus nemurus) Aldi Huda Verdian; Adni Oktaviana; Kevin Dony Kesuma; Nurul Fatimah; Irzal Effendi; Iis Diatin; Tatag Budiardi
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.25354

Abstract

This study aims to evaluate the effect of stocking density variation on the survival rate of Asian Redtail catfish juveniles (Mystus nemurus) in a closed wet transportation system for 12 hours and post-transportation maintenance for 4 days. The method used a completely randomized design with three density treatments: 83, 167, and 250 fish per liter, each replicated three times. The results showed that a stocking density of 167 fish per liter provided the best survival rate, reaching 100% at the end of transportation and 95,45% after post-transportation maintenance. At the highest density of 250 fish per liter, a significant decline in survival to 64,39% was observed, accompanied by decreased water quality, lowered dissolved oxygen levels, increased ammonia concentration, and physiological stress symptoms in the juvenile. The decline in water quality and accumulation of metabolic waste at high densities contributed to increased stress and mortality. Besides the biological aspects, the business analysis indicated that a stocking density of 167 fish per liter was optimal in terms of economic efficiency, generating a net profit of IDR 21.467 and an R/C ratio of 1,09, making this scenario commercially viable. This study offers valuable recommendations for the sustainable management of Asian Redtail catfish juvenile transportation, promoting increased production and profitability in aquaculture. Keywords: Asian Redtail Catfish; Juvenile Transport; Profitability; Stocking Density; Survival Rate
Morphometric analysis and growth patterns of the mudskipper (Periophthalmus chrysospilos) in the Kuala Mangrove Area of Kota Langsa Diyah Anjani; Sakina Azzahra Hilal; Intan Baiduri; Adelia Putri; Selvira Selvira; Abdul L. Mawardi
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.25387

Abstract

The Kuala Mangrove area in Kota Langsa has high biodiversity potential and plays an important role as a habitat for the mudskipper (Periophthalmus chrysospilos). However, information regarding the morphometric characteristics and growth patterns of this species in the area remains limited. This study aimed to analyze the morphometric characteristics and growth patterns of mudskippers in the Kuala Mangrove area of Kota Langsa. The research was conducted in October 2025 using a survey method with a purposive sampling technique. Observed parameters included fish body morphometric measurements and environmental factors such as temperature, pH, and salinity. Data were processed using Microsoft Excel to obtain average values and length–weight relationships through logarithmic regression analysis. The results showed that 44 mudskipper individuals were found at three observation stations, with average total lengths of 18.2 ± 1.8 cm (Station 1), 20.9 ± 1.3 cm (Station 2), and 23.9 ± 1.8 cm (Station 3), and corresponding body weights of 109.8 ± 14.6 g, 137.4 ± 13.7 g, and 179.4 ± 16.5 g. The b values at each station were 1.39, 1.69, and 1.21, with determination coefficients (R²) of 0.99, 0.99, and 0.96, indicating a negative allometric growth pattern. Environmental conditions such as temperature 28–30°C, pH 7.2–7.6, and salinity 25–30 ppt were within the optimal range. These findings indicate that mudskippers possess a high adaptive capacity and have potential as bioindicators of the mangrove ecosystem in the Kuala Mangrove area of Kota Langsa. Keywords: Growth Pattern; Mangrove; Morphometric; Mudskipper; Periophthalmus chrysospilos
Financial feasibility analysis of pickled skipjack tuna products in Micro, Small, and Medium Enterprises (MSMEs) in Gorontalo City (Case study of Mutfood Indonesia) Imam Prawiranegara Gani; Andi Desiah Pradilia
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.25440

Abstract

This study aims to analyze the financial feasibility of a pickled skipjack tuna product business at Mutfood Indonesia, a Micro, Small, and Medium Enterprise (MSME) in Gorontalo City. The feasibility analysis was conducted through calculations of investment costs, operational costs, revenue, and financial feasibility indicators consisting of Break Even Point (BEP), Revenue Cost Ratio (R/C Ratio), and Payback Period (PP). The results showed that Mutfood Indonesia requires a total initial investment cost of IDR 500,904,000 to support the production process. With a selling price of IDR 50,000 per package and a production capacity of 2,000 packages per month, this business earns a net profit of IDR 39,204,037.00 per month. The R/C Rasio is 1,62 or the value is above 1, indicating that each cost expenditure is able to generate greater revenue and indicates that the business is financially feasible. The BEP calculation illustrates that the break-even point is reached at 467 units or IDR 23,350,000, which indicates that Mutfood Indonesia's production volume far exceeds the minimum limit to cover operational costs. Meanwhile, the Payback Period analysis results show a return on investment of 13 months, which is relatively fast for an MSME. Compared with previous research, these results are consistent with previous research, where fishery processing businesses with an R/C value > 1 and a relatively short payback period indicate profitable business prospects. Overall, this study concludes that Mutfood Indonesia's pickled skipjack tuna business is feasible and has potential for future development. Keywords: BEP; MSMEs; Payback Period; Pickled Skipjack Tuna; R/C Ratio
Decadal shifts in sediment dynamics and organic matter accumulation in a highly anthropogenic tropical bay: Banten Bay, Indonesia Nur Aziza; Dietriech Geoffrey Bengen; Tri Prartono; Rastina Rastina
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.26460

Abstract

Banten Bay is a semi-enclosed coastal system subjected to intensifying environmental pressures from anthropogenic activities and fluvial inputs, rendering it highly susceptible to alterations in sediment characteristics and organic matter accumulation. This study aims to analyze the distribution of sediment and organic matter content at five strategic observation stations in the waters of Banten Bay. Sediment fraction analysis was conducted using the standard sieving method (ASTM D422-63), while organic matter content was quantified via the Loss on Ignition (LOI) technique. The results reveal that the sediment is predominated by fine-grained particles, specifically silt (64.39 – 76.41%) and clay (21.96 – 27.47%), whereas the sand fraction represents the lowest proportion (1.26 – 9.87%). Based on the USDA textural classification, the sediment is categorized as silty clay. Organic matter content varied between 6.267% and 12.067%, with the highest concentrations observed at central bay stations and those adjacent to mangrove ecosystems. The spatial distribution of fine sediments and organic matter is intrinsically linked to local hydrodynamics, where low-energy current environments facilitate the deposition and retention of fine particles. These findings indicate that Banten Bay’s current environmental regime promotes high fine-sediment deposition and organic matter accumulation, reflecting a significant shift in environmental dynamics compared to historical conditions. This study provides essential baseline data for environmental quality management and long-term ecosystem monitoring in Banten Bay. Keywords: Anthropogenic Pressure; Banten Bay; Organic Matter; Hydrodynamics; Sediment Grain
Ecological adaptation interpretation of intertidal gastropod communities on hard-substrate habitats in Tomini Bay Waters, Pohuwato Regency Miftahul Khair Kadim; Khairinissa Septiani Makmur; Nuralim Pasisingi; Faizal Kasim; sandriyanto djunaidi
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.26491

Abstract

Intertidal gastropod communities on hard-substrate habitats may reflect ecological responses to microhabitat heterogeneity through community structure and spatial distribution patterns. This study aimed to interpret the ecological responses of intertidal gastropod communities in Tomini Bay waters, Pohuwato Regency, through an analysis of community structure and distribution patterns across five stations (KP1–KP5) selected based on the presence of hard substrates, namely dead coral and rocky habitats (including natural rocks and breakwaters). Distribution patterns were analyzed using Morisita’s Index and confirmed by a chi-square (χ²) test. Overall, 74 species from 21 families were identified, with a total of 17,827 individuals. Rocky habitats had higher individual abundance, whereas cumulative species richness was higher in dead-coral habitats. The community showed strong dominance by Planaxis sulcatus, which was associated with low diversity at certain stations, with the highest H′ value recorded at KP4 (2.628) and the lowest at KP5 (0.153), while the highest D value (0.954) was recorded at KP5. Dispersion analysis showed that clumped patterns predominated in both habitats, and the proportion of records with significantly clumped patterns was higher in rocky habitats than in dead-coral habitats. These results indicate that spatial distribution patterns are an important component in the ecological interpretation of intertidal gastropod communities on hard substrates. Keywords: Dispersion Pattern; Gastropoda; Intertidal; Tomini Bay
The effect of Vitamin C supply in commercial feed on the growth and survival of tawes fish fry (Barbonymus gonionotus) Simamora, Ica Maria; Samad, Agus Putra A.; Komariyah, Siti
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.24209

Abstract

The silver barb (Barbonymus gonionotus) is a freshwater fish found abundantly in Indonesian waters and belongs to the Cyprinidae family. This study aimed to determine the effect of vitamin C supplementation in commercial feed on the growth and survival of silver barb (Barbonymus gonionotus) fry. The research design used was a completely randomized design (CRD) with four replication treatments P1 = (Feed without additional vitamin C (control), P2 = Feed with additional vitamin C 100 mg / kg, P3 = Feed with additional vitamin C 150 mg / kg, P4 = Feed with additional vitamin C 200 mg / kg. The test fish used were 120 tawes fish measuring 4-6 cm. The research was conducted at the UPTD Pinang Mancung Fish Seed Center, Tebing Tinggi City for 40 days. Feeding the fish was carried out 3 times a day. The parameters measured included the main parameters in the form of absolute weight growth, absolute length growth, specific growth rate (LPS), feed conversion ratio and survival. Supporting parameters in the form of air quality parameters, namely temperature, pH, dissolved oxygen (DO) and ammonia. had a significant effect (P> 0.05) on the survival of tawes fish. The treatment that provided the best growth in this study was treatment P4 (200mg vitamin C / kg (feed). Keywords: Growth; Feed; Tawes Fish; Vitamin C
Socio-ecological approach in floodswamp management for fish conservation Khotimah, Khusnul; Muslim, Muslim; Saputra, Daniel; Taqwa, Ferdinand Hukama
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.25538

Abstract

Floodplain swamp are seasonally inundated aquatic ecosystems that play vital ecological roles as habitats, spawning grounds, and natural buffers supporting local fish diversity in Indonesia, particularly in South Sumatra. However, pressures from land conversion, environmental degradation, and overexploitation have caused a decline in biodiversity and now threaten the long-term sustainability of these ecosystems. This study employs a Systematic Literature Review (SLR) approach, guided by the PRISMA protocol, to explore the role of socio-ecological approaches in managing floodplain swamp for fish conservation. The analysis was conducted through thematic and bibliometric synthesis using VOSviewer software to identify research trends, thematic clusters, and existing knowledge gaps. The findings reveal that the success of fish conservation in floodplain swamp depends not only on ecological factors but also on social, cultural, economic, and institutional dimensions. Integrating local wisdom such as the Lubuk Larangan system and traditional fisheries regulations with modern scientific frameworks like Adaptive Collaborative Management enhances socio ecological resilience and conservation effectiveness. An adaptive and participatory socio ecological management model for floodplain swamp is therefore essential to ensure the sustainability of fish resources and the well-being of local communities. Keywords: Conservation; Floodplain Swamp; Local Wisdom; Socio-Ecology
Photoperiod preference of Indonesian leaffish (Pristolepis grooti) during post-transportation recovery period Taqwa, Ferdinand Hukama; Mohamad Amin; Muhammad Nursan; Rupi Sanjaya
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.26604

Abstract

Photoperiod manipulation is one of the environmental management strategies that can influence the physiological condition of fish and support the success of aquaculture production. This study aimed to analyze the photoperiod preference of Indonesian leaffish (Pristolepis grooti) during the the post-transportation recovery period. The experiment used a Completely Randomized Design with three photoperiod treatments and three replications: (A) 24 hours light:0 hours dark (24L:0D), (B) 12 hours light:12 hours dark (12L:12D), and (C) 0 hours light:24 hours dark (0L:24D). The study was conducted at the Experimental Pond Instalation, Aquaculture Study Program, Universitas Sriwijaya. The results showed that treatment C (0L:24D) produced the lowest blood glucose level (93.33±2.08 mg dL⁻¹), the highest feed efficiency (1.67±0.05%), and relatively better absolute weight growth (0.05±0.01 g), with a survival rate reaching 93.33±11.55%. The oxygen consumption level indicated significant differences in metabolic activity among treatments, reflecting the best physiological condition of Indonesian leaffish under a 24-hour dark photoperiod (0.110±0.008 mg O2 g-1 h-1). Water quality values during the recovery period (temperature 28.1-30.2°C, pH 7.6-7.9, dissolved oxygen 2.9-3.1 mg L⁻¹, and ammonia 0.421-0,895 mg L⁻¹) were within the range that supports the survival of Indonesian leaffish. Treatment C (0L:24D) indicated the photoperiod preference of Indonesian leaffish during the post-transportation recovery period because it was able to maintain better physiological conditions, thereby supporting improved aquaculture performance during the subsequent culture period. Keywords: Feed Efficiency, Growth, Leaffish, Physiological Condition, Survival Rate, Photoperiod
The effect of giving moringa leaf extract (Moringa oleifera) in feed on the level of cannibalism and growth of Asian seabass Lates calcarifer (Bloch, 1790) Nurlianti, Nurlianti; Anwar, Asni; Hamsah, Hamsah; Akmaluddin, Akmaluddin; Wahyu, Farhanah; Murni, Murni; Berliana, Walda Dewi; Ayuzar, Eva
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.26694

Abstract

Asian seabass (Lates calcarifer) is a high-value aquaculture species, but cannibalism during the juvenile stage remains a major constraint. This study aimed to evaluate the effect of moringa (Moringa oleifera) leaf extract supplementation in feed on cannibalism rate, growth performance, and survival of Asian seabass juveniles. A completely randomized design (CRD) was applied with four treatments and three replications: control (A) and moringa extract at concentrations of 1:10 (B), 1:15 (C), and 1:20 g/mL (D). The results showed that moringa leaf extract supplementation had no significant effect (p > 0.05) on cannibalism rate and survival. However, a trend of reduced cannibalism and improved growth performance was observed, particularly in treatment B (1:10 g/mL), which produced the highest growth. In conclusion, moringa leaf extract shows potential as a functional feed additive, although further studies with improved experimental design and additional parameters are required to confirm its effectiveness. Keywords: Cannibalism; Feed; Lates calcarifer; Moringa olifera
The influence of additional bromelain enzyme on feed for growth and utilization efficiency of Asian redtail catfish seed feed (Hemibagrus nemurus) Hadi, Khairul; Bastian, Bastian
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 13: No. 1 (April, 2026)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v13i1.26797

Abstract

Asian redtail catfish (Hemibagrus nemurus) is a local fish in Riau Province which has high economic value and has the potential to be developed. This study aims to find out the influence of adding bromelain enzymes on feed for the growth and utilization efficiency of Asian redtail catfish seed feed. The experimental design used a Completely Randomized Design (CRD) with five treatments and three replications, namely A = control (0.0%), B = bromelain enzyme at a dose of 1.0%, C = 1.5%, D = 2.0 % and E = 2.5 %/g feed. The results showed that the addition of the bromelain enzyme to the feed had no significant influence on the growth and efficiency of the utilization of the Asian redtail catfish seed feed. The best addition of bromelain enzymes to feed was a dose of 2.0%/g feed which resulted in an absolute weight growth of 3.03 ± 0.2 g, an absolute length of 1.43 ± 0.2 cm, a specific growth rate of 4.31±1.5%/day, feed utilization efficiency was 57.3 ± 8.8 % and survival rate was 83.3 ± 11.5 %. Keywords: Asian Redtail Catfish; Bromelin Enzyme; Growth

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