Current Issue: Latest Research in Aquaculture and Fisheries Management
Explore the latest advancements, research findings, and reviews in sustainable aquaculture and fisheries management. Our current issue covers a range of topics that address emerging challenges and opportunities in aquatic sciences. Access these peer-reviewed articles and stay informed on developments in aquaculture, fish breeding, water quality management, and sustainable fishing practices.
Featured Articles in the Latest Issue
- Volume 3(Issue 1) JANUARY- JUNE 2026
Research Articles
Integrated Biofloc and Periphyton Systems for Improving Juvenile Tilapia Productivity Under Reduced Water Exchange Conditions
Vol.3(1); Pages:1-10. Published on April-2026
Abstract
Increasing concerns regarding freshwater use and environmental sustainability have accelerated the adoption of low-water-exchange aquaculture systems. This study evaluated the combined application of biofloc technology and periphyton substrates in juvenile Nile tilapia production systems under controlled aquaculture conditions. Experimental units were established with varying densities of artificial substrates and microbial inoculation treatments to investigate growth performance, feed conversion efficiency, water quality stabilization, and microbial dynamics. Over the study period, fish maintained in integrated systems demonstrated measurable improvements in biomass gain and nutrient utilization relative to conventional tank systems with regular water replacement. Enhanced microbial communities promoted effective nitrogen assimilation, reducing concentrations of ammonia and nitrite while maintaining dissolved oxygen stability. The inclusion of periphyton substrates also created additional natural feeding surfaces that supported improved nutrient recycling. Results indicated that fish in integrated treatments exhibited lower stress indicators and higher survival rates. Findings suggest that combining biofloc systems with periphyton-based nutrient retention strategies may provide a sustainable approach for increasing aquaculture productivity while minimizing environmental impacts associated with water discharge and feed waste accumulation. The study highlights opportunities for scalable implementation in semi-intensive aquaculture operations seeking improved resource efficiency.
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Seasonal Variability in Microalgal Feed Supplementation and Its Influence on Shrimp Larval Developments
Vol.3(1); Pages:11-21. Published on April-2026
Abstract
Microalgae represent a critical nutritional component in hatchery operations due to their balanced nutrient composition and physiological benefits for larval development. This investigation assessed the influence of seasonally varying microalgal formulations on shrimp larvae performance under controlled aquaculture environments. Distinct feed mixtures dominated by selected microalgal species were evaluated for nutritional composition, fatty acid profile, digestibility, and associated larval growth responses. Seasonal differences in biochemical content significantly influenced larval development patterns and feed utilization efficiency. Treatments characterized by elevated polyunsaturated fatty acid concentrations demonstrated increased growth rates and improved metamorphosis outcomes. Water quality indicators remained within acceptable ranges across all treatments, although tanks receiving nutrient-balanced microalgal supplementation showed greater biological stability. Survival rates and larval robustness indices exhibited favorable responses under optimized seasonal formulations. Additionally, observations suggested enhanced immune responsiveness among larvae receiving diversified algal nutrient profiles. These findings indicate that seasonal adaptation of microalgal supplementation strategies can improve larval performance and reduce nutritional limitations frequently encountered in commercial shrimp hatcheries. The study supports the integration of season-specific feed management approaches for enhancing sustainable aquaculture production efficiency.
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Assessment of Environmental DNA Techniques for Monitoring Disease Risks in Coastal Cage Aquaculture
Vol.3(1); Pages:22-32. Published on May-2026
Abstract
Disease outbreaks continue to represent significant constraints on sustainable aquaculture development, particularly within high-density cage production systems. This study examined the application of environmental DNA methodologies as an early monitoring tool for detecting potential disease-associated organisms in coastal aquaculture environments. Water samples from multiple cage locations were analyzed using molecular amplification techniques designed to identify pathogen signatures and microbial community changes preceding visible clinical symptoms. Results demonstrated that environmental DNA monitoring detected pathogen-related signals earlier than traditional observational methods. Temporal analysis revealed shifts in microbial abundance patterns associated with environmental variables including temperature, dissolved oxygen, and nutrient concentrations. Detection sensitivity remained high across sampling intervals and facilitated improved understanding of spatial pathogen distribution. The use of molecular surveillance methods also reduced labor intensive diagnostic procedures and minimized delays in management response strategies. Findings indicate that environmental DNA approaches can support proactive disease management by enabling rapid identification of biological risks before severe production losses occur. Adoption of such monitoring systems may strengthen biosecurity frameworks and improve sustainability outcomes for coastal aquaculture industries.
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Comparative Evaluation of Constructed Wetland Effluent Treatment Systems for Recirculating Aquaculture Facilities
Vol.3(1); Pages:33-43. Published on May-2026
Abstract
Effective wastewater treatment remains a major challenge in intensive aquaculture operations due to increasing nutrient loading and environmental discharge concerns. This study investigated the efficiency of constructed wetland systems integrated with recirculating aquaculture facilities for reducing organic and inorganic waste outputs. Multiple wetland configurations involving varied plant species and substrate compositions were assessed for nutrient removal capacity, hydraulic performance, and system stability. Results demonstrated substantial reductions in nitrogenous compounds and suspended particulate matter across all treatment configurations. Systems containing diverse vegetation structures exhibited superior nutrient assimilation and microbial activity compared with simplified wetland arrangements. Improvements in water recirculation quality also supported more stable culture conditions and reduced operational dependence on external water replacement. The ecological functionality of wetland environments contributed to increased biological processing efficiency while maintaining lower operational complexity. Economic observations suggested potential reductions in treatment costs over long-term operation periods. Findings indicate that constructed wetlands may serve as practical supplementary technologies for improving environmental sustainability and reducing aquaculture-associated ecological pressures in intensive production systems.
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Influence of Climate-Induced Temperature Fluctuations on Reproductive Performance of Freshwater Carp Species
Vol.3(1); Pages:44-54. Published on June-2026
Abstract
Climate variability has introduced significant uncertainty into freshwater aquaculture and fisheries management through its influence on environmental conditions and reproductive cycles. This longitudinal investigation examined the relationship between temperature fluctuations and reproductive performance among selected freshwater carp species maintained under monitored production conditions. Data were collected across multiple seasonal intervals to evaluate spawning behavior, reproductive timing, egg viability, and larval survival under varying thermal scenarios. Results indicated that even moderate deviations from optimal thermal ranges affected reproductive synchronization and reduced spawning consistency. Elevated temperatures were associated with changes in gonadal development patterns and measurable decreases in fertilization success. In contrast, stable thermal conditions promoted improved reproductive outcomes and greater larval survival rates. The study further observed alterations in feeding behavior and metabolic activity under prolonged temperature stress conditions. These findings emphasize the importance of adaptive management strategies within aquaculture systems experiencing climatic variability. Incorporation of predictive environmental monitoring and temperature control interventions may strengthen reproductive stability and improve sustainability outcomes for future freshwater fish production systems.
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