Aquacultural Engineering最新文献

{"title":"Measurement of settling velocities of feeds and fecal solids in aquacultural applications – A critical review","authors":"John Colt ,&nbsp;George Tchobanoglous ,&nbsp;Ronald B. Johnson","doi":"10.1016/j.aquaeng.2025.102548","DOIUrl":"10.1016/j.aquaeng.2025.102548","url":null,"abstract":"<div><div>The majority of solids in intensive culture systems are from uneaten feed and fecal solids. The settling velocity of feeds and fecal solids is needed for the design of settling basins and modeling of the impacts of netpens. The UFT column developed in Germany in the 1980s has become the dominant column type for wastewater settling testing. The primary advantage of this column compared to conventional columns is the preconcentration of the settleable solids, elimination of problems with time zero estimates, and reduced sampling requirements.</div><div>The conventional settling velocity analysis presented in standard references, while theoretically correct, and is virtually impossible to apply to actual fecal waste because of uncertainty in numbers, mass, shape, density, and drag characteristics. In addition, this analysis is unneeded, as the removal efficiency is measured directly in the settling column tests. Because the UFT column uses only the settleable solid portion of the total suspended solids, the settling results will depend on the preconcentration process. If this process misses a significant portion of the settleable solids, the resulting settling tests will overestimate the removal efficiency. If the ratio of non-settleable solids/total suspended solids is known, the resulting removal efficiency can be presented in terms of either settleable solids or total suspended solids. Additional research is needed to develop standardized protocols for the collection of solids and handling prior to analysis.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"111 ","pages":"Article 102548"},"PeriodicalIF":3.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of tank geometry and background color on growth performance and immune response of endangered Indian butter catfish Ompok bimaculatus","authors":"Chandan Debnath","doi":"10.1016/j.aquaeng.2025.102550","DOIUrl":"10.1016/j.aquaeng.2025.102550","url":null,"abstract":"<div><div>This study investigated the effects of tank shape (circular, square, rectangular) and background color (blue, black, white) on the growth performance, immune response, and cannibalistic behavior of <em>Ompok bimaculatus</em> in a 12-week trial. Nine treatment combinations were tested in triplicate using a 3 × 3 factorial design. Growth parameters, immune indicators, and cannibalism rates were assessed. Results showed that circular tanks with black backgrounds yielded the best outcomes, with the highest weight gain (58.7 ± 2.3 g), lowest feed conversion ratio (1.42 ± 0.05), and superior immune responses, including the highest total leukocyte count (3.8 × 10⁴ ± 0.2 × 10⁴ cells/mm³) and respiratory burst activity (0.58 ± 0.03 OD540nm). Importantly, circular tanks with black backgrounds also exhibited the lowest incidence of cannibalism (2.3 ± 0.5 %) compared to other treatments. The interaction between tank shape and color was significant for most parameters, indicating that the effect of background color varied depending on tank geometry. Analyses revealed that circular tanks provided more uniform water flow and light distribution, while black backgrounds reduced stress-related behaviors. This study highlights the importance of optimizing tank design to enhance growth, immunity, and mitigate cannibalism in <em>O. bimaculatus</em> aquaculture, which is crucial for improving productivity and sustainability of this endangered catfish species.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"111 ","pages":"Article 102550"},"PeriodicalIF":3.6,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical investigation on flow field and drag force distribution of a semi-submersible truss net cage with compartmentalization","authors":"Hang-Fei Liu ,&nbsp;Xiaohua Huang ,&nbsp;Guoliang Pang ,&nbsp;Gen Li ,&nbsp;Taiping Yuan ,&nbsp;Yu Hu ,&nbsp;Qiyou Tao","doi":"10.1016/j.aquaeng.2025.102551","DOIUrl":"10.1016/j.aquaeng.2025.102551","url":null,"abstract":"<div><div>The internal compartments of large deep-sea semi-submersible truss net cages are of great significance to living environments for farmed fish and facilitating efficient harvesting. The present study focuses on semi-submersible truss net cages with compartments, and combines computational fluid dynamics (CFD) theory and porous media methods to explore the flow speed, drag force distribution and torque of the truss net cage. The results indicate that the internal compartments of the truss net cage have a significant effect on the flow speed distribution. Among three cases, including no netting inside net cage (C0), radial netting configuration (C1) and nine-grid layout (C2), C1 has the most significant damping effect on the flow speed, which is attenuated to 58.1 % inside the net cage, followed by C2, which is attenuated to 49.6 %, and C0 has the least effect, attenuating to 43.3 %. In addition, the drag force exerted on the internal nets and the side nets is the largest, accounting for 22.5 % and 20.1 % respectively, followed by the thick column, accounting for 11.8 %, and the middle cross brace is the smallest, accounting for 3.1 %. As for total force, the drag force exerted on the C1 is higher than that on the C0 and C2, but the difference between the drag forces exerted on the C1 and C2 is small, less than 1.5 %. Furthermore, the torque exerted on the C1 and C2 is higher than the torque on the C0, while the torque amplitude of the C1 and C2 is not much different. We also found a phenomenon that the presence of the internal nets causes the position where the torque direction changes from clockwise to counterclockwise to shift by about 1.0 cm along the positive z direction. The present study comprehensively analyzes the changes in the flow speed, drag force and torque of the semi-submersible truss net cage with compartmentalization, which is of great significance for guiding the design and optimization of practical aquaculture engineering equipment.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"111 ","pages":"Article 102551"},"PeriodicalIF":3.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence and the underlying mechanisms of substrate type on the growth of razor clam Sinonovacula constricta","authors":"Zhanfeng Liang,&nbsp;Jilin Xu,&nbsp;Shuonan Ma,&nbsp;Chunpu Zhao,&nbsp;Ying Zeng,&nbsp;Anhao Wang,&nbsp;Wenhao Yin,&nbsp;Kai Liao","doi":"10.1016/j.aquaeng.2025.102549","DOIUrl":"10.1016/j.aquaeng.2025.102549","url":null,"abstract":"<div><div>The bivalve aquaculture sector constitutes a vital pillar of China's fisheries economy, with substrate serving as a pivotal environmental determinant influencing the efficacy of aquaculture practices. However, how substrate characteristics affect the bivalve growth remains unclear. In the present study, the widely cultured bivalve species, namely the razor clam <em>Sinonovacula constricta</em>, was chosen as the subject of our research, and an experiment was conducted to examine its cultivation across four distinct types of substrates: artificial, sandy, muddy, and sandy silt substrates. The results demonstrated that substrate grain size (GS) was a pivotal determinant influencing the growth of razor clams. Growth indicators, including wet weight, shell length, shell width, exhibited a significant decrease as the substrate grain size increased. More specifically, <em>S. constricta</em> exhibited optimal growth within the GS range of 6.7–16.0 μm and the most inferior growth at a substrate grain size of 293.0 μm. A coarse-grained substrate (293.0 μm) significantly impeded essential behaviors such as burrowing and feeding, thereby markedly reducing the growth rate of razor clams. Furthermore, extended exposure to a coarse-grained substrate may trigger oxidative stress in <em>S. constricta</em>, leading to cellular structural and functional impairments, which subsequently suppress the activity of antioxidant enzymes (e.g., catalase) and downregulate the expression of antioxidant genes (e.g., catalase, superoxide dismutase, glutathione peroxidase). Despite the substrate significantly altering the phosphorus concentration in the overlying water, the frequent water exchanges within the aquaculture system prevented the conversion of these elevated phosphorus levels into accessible primary productivity for filter-feeding razor clams, thus yielding no significant impact on clam growth. These findings provide valuable insights for substrate selection in razor clam aquaculture, thereby contributing to the enhancement of both the quality and economic viability of razor clam farming operations.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"111 ","pages":"Article 102549"},"PeriodicalIF":3.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance in nitrogen, turbidity and phosphorus removal in a RAS using moving bed settler and membrane aerated biofilm reactor","authors":"Adriana Vanessa Mutumbajoy Benavides ,&nbsp;Iván Andrés Sánchez-Ortiz ,&nbsp;Tsunao Matsumoto","doi":"10.1016/j.aquaeng.2025.102547","DOIUrl":"10.1016/j.aquaeng.2025.102547","url":null,"abstract":"<div><div>The objective of this research was to evaluate the efficiency in the removal of nitrogen, phosphorus and turbidity in a Recirculating Aquaculture System (RAS) for Nile tilapia culture by means of a moving bed settler (MBS) and a membrane aerated biofilm reactor (MABR). In a RAS for the cultivation of <em>Oreochromis niloticus</em> with a biomass density of 21.7 kg/m³, the performance of an MBS operated with hydraulic retention time (HRT) of 0.6 hours and of an MABR with HRT of 1.2 hours was evaluated. The performance of the treatment units was determined by calculating the nitrogen removal efficiency in the forms of total nitrogen (TN), un-ionized ammonia (NH₃-N), ammonium (NH₄⁺-N), total ammonia nitrogen (TAN), nitrites (NO₂-N), nitrates (NO₃-N), turbidity and total phosphorus (TP). The mean total removal efficiencies of the monitored water quality parameters were 98.6 % for turbidity, 17.5 % for TN, 42.8 % for TAN, 55.9 % for NO₂-N, 36.3 % for NO₃-N and 29.7 % for TP. The RAS treatment units, operated with relatively low HRT, demonstrated good performance in maintaining water quality in favorable conditions for tilapia farming.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"110 ","pages":"Article 102547"},"PeriodicalIF":3.6,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the three-body kelp harvesting ship based on floating raft aquaculture mode","authors":"Xian Wang ,&nbsp;Yanan Wang ,&nbsp;Zhengzhong Li ,&nbsp;Hailong Che ,&nbsp;Lanlan Zhu ,&nbsp;Tongfei Sheng ,&nbsp;Hua Zhou ,&nbsp;Duanyang Geng","doi":"10.1016/j.aquaeng.2025.102545","DOIUrl":"10.1016/j.aquaeng.2025.102545","url":null,"abstract":"<div><div>Floating raft is the most widely promoted kelp aquaculture mode in China. Under this mode, kelp production is high, but the ropes are complex and intertwined. The main method of kelp harvesting is manual. To reduce the labor intensity and improve the harvesting efficiency of kelp, this study designs a three-body kelp harvesting ship based on the floating raft aquaculture mode. This ship can lift, transport, collect, and transfer kelp in a single operation. Apart from the manual assistance required for the release and hanging the seedling rope, all other processes are mechanically automated. The diameter and lead of the rotary-screw propulsor blade were determined through Fluent simulation tests. To verify the actual harvesting effect of the three-body kelp harvesting ship, kelp harvesting performance tests were conducted. The results showed that the working speed and efficiency of mechanized harvesting were significantly higher than manual. The mechanical harvesting efficiency was 18.75 times that of manual, and the per capita harvesting efficiency was 9.33 times that of manual. The kelp loss rate of the harvesting ship was 3.25 %, slightly higher than that of manual. This study can provide a certain reference for the mechanized harvesting of kelp in large-scale aquaculture.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"110 ","pages":"Article 102545"},"PeriodicalIF":3.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A fast and dynamic tracking-based Micropterus salmoides fry counting method in highly occluded scenarios","authors":"Haofeng Liu ,&nbsp;Meng Cui ,&nbsp;Hao Gu ,&nbsp;Juan Feng ,&nbsp;Lihua Zeng","doi":"10.1016/j.aquaeng.2025.102546","DOIUrl":"10.1016/j.aquaeng.2025.102546","url":null,"abstract":"<div><div>Rapid and precise fry counting is crucial in aquaculture engineering, impacting breeding quality and marketing efficiency. Previous methods based on static image analysis are constrained by occlusion and limited generalization. Dynamic counting methods based on multi-object tracking (MOT) hold promise in addressing these challenges, but they still have counting accuracy and speed limitations due to algorithmic constraints. To address these limitations, we propose a dynamic <em>Micropterus salmoides</em> (largemouth bass) fry tracking and counting method tailored for densely occluded environments. Specifically, we employed the anchor-free You Only Look Once version 8 (YOLOv8) architecture, replacing its backbone with the lightweight and truncating the detection head at the highest level of YOLOv8 to enhance detection accuracy and efficiency. Furthermore, we adopted the Tracking-By-Detection architecture, optimized Kalman filtering's parameter updating for motion prediction, and enhanced the data association algorithm. This approach facilitates rapid and stable fry trajectory prediction and tracking while dramatically reducing identification switches, improving counting accuracy. Additionally, we constructed a dedicated dataset for fry tracking and counting, classifying videos by the density of fry in a single frame and the total number of fry across all frames. Experiment results have demonstrated that our method achieves up to 97 % counting accuracy in densely occluded scenarios (up to 62 fry per frame) and 100 % counting accuracy in scenarios with minimal occlusion (up to 19 fry per frame). Moreover, it can run at 19 frames per second on edge devices, thereby meeting the requisite speed and accuracy criteria.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"110 ","pages":"Article 102546"},"PeriodicalIF":3.6,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of liquid organic fertilizer produced from fish sludge in an aquaponics system: Influences on growth of Nile tilapia (Oreochromis niloticus) and peppermint (Mentha ×piperita L.)","authors":"Mohammad Hossein Madady ,&nbsp;Mehrdad Sarkheil ,&nbsp;Saeed Zahedi ,&nbsp;Hossein Arouei","doi":"10.1016/j.aquaeng.2025.102541","DOIUrl":"10.1016/j.aquaeng.2025.102541","url":null,"abstract":"<div><div>In aquaponics systems, liquid effluent from fish culture is not enough to meet the nutritional requirements of plants. In this study, an aquaponics system coupled with an aerobic digestion bioreactor (ADBR) for the digestion of the Nile tilapia (<em>Oreochromis niloticus</em>) sludge was designed in triplicate. The aerobic digestion of fish sludge was performed using biofertilizer containing phosphate-solubilizing bacteria (PSB) (<em>Pseudomonas putida</em> strain P13 and <em>Pantoea agglomerans</em> strain P5; 10⁷ CFU/mL for each bacterium) at a levels of 0.1 % for 14 days in the ADBR. Nile tilapia (<em>O. niloticus</em>) fish and peppermint (<em>Mentha × piperita</em> L.) plant were cultivated in two aquaponics (AP) systems for six weeks without and with adding liquid organic fertilizer (LOF) produced from the aerobic digestion of fish sludge as control and AP-LOF treatment, respectively. The use of PSB for aerobic digestion of the fish sludge led to increasing the PO₄^3-, K, Fe, Zn, Cu, and Mn concentrations compared to the control (<em>p</em> &lt; 0.05). The electrical conductivity (EC) of the LOF increased significantly with adding PSB compared to the control (<em>p</em> &lt; 0.05). The final body weight of Nile tilapia increased by 81.82 % and 104.17 % in the AP and AP-LOF treatments after six weeks, respectively. The food conversion ratio (FCR) improved in the AP-LOF treatment compared to the AP treatment (<em>p</em> &lt; 0.05). The total ammonia nitrogen (TAN) and nitrate concentrations decreased in aquaponic water with adding the LOF compared to the AP treatment (<em>p</em> &lt; 0.05). The biomass and morphological traits of peppermint, including fresh weight of plant, and aerial parts, shoot height, number of leaves, and nodes per plant increased in the AP-LOF treatment compared to the AP treatment (<em>p</em> &lt; 0.05). The P, K, Na, Ca, and Fe contents of peppermint cultivated in the AP-LOF treatment were higher than in the AP treatment (<em>p</em> &lt; 0.05). In conclusion, the use of PSB in the ADBR unit of aquaponics system improved the nutrient recovery from Nile tilapia sludge and adding liquid organic fertilizer to aquaponic water had a positive effect on the growth performance of Nile tilapia and peppermint plant.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"110 ","pages":"Article 102541"},"PeriodicalIF":3.6,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cold atmospheric plasma and pulsed electric fields as alternative decontamination technologies in recirculating aquaculture systems","authors":"Martina Balazinski ,&nbsp;Veronika Hahn ,&nbsp;Robert Wagner ,&nbsp;Michael Schmidt ,&nbsp;Christin Höhne ,&nbsp;Gerd-Michael Arndt ,&nbsp;Mirko Basen ,&nbsp;Klaus-Dieter Weltmann ,&nbsp;Juergen F. Kolb","doi":"10.1016/j.aquaeng.2025.102543","DOIUrl":"10.1016/j.aquaeng.2025.102543","url":null,"abstract":"<div><div>Aquaculture, in particular indoor farms that utilize recirculating aquaculture systems (RAS), are an expanding market with significant sustainable potential. These systems allow controlled production of aquatic organisms all year-round. Therefore, filtration units, e.g., with ultraviolet radiation (UV) or ozone are necessary to maintain hygiene but high energy and freshwater costs are incurred. Moreover, an increase of fish-pathogenic microorganisms can lead to disease outbreaks and mortality making decontamination an essential tool to ensure the cultivation of healthy aquatic organisms under sustainable conditions. Novel approaches, such as cold atmospheric plasma (CAP) and pulsed electric fields (PEF) present promising solutions. Both are effective for water decontamination, scalable to industrial volumes and have the potential of an energy-saving operation. The efficacy was evaluated using RAS water from Baltic sturgeon (<em>Acipenser oxyrinchus</em>). Additionally, to improve the reproducibility of conditions, treatments were compared with model aquaculture water, which was designed from analytical results of RAS water. The study evaluated the inactivation of fish-pathogenic microorganisms by CAP and PEF in comparison to UV. CAP reduced Gram-positive and Gram-negative bacteria by logarithmic reduction factors (log₁₀-RF) of up to 2.1 and 5.9, respectively. A similar inactivation was determined for PEF. Furthermore, a technology efficiency coefficient, putting the required energy in relation to the bacterial inactivation of the respective process, was introduced. Our laboratory findings provided relevant parameters towards a novel, improved treatment of water in RAS. Both tested technologies, CAP and PEF may be combined with UV to ensure hygienically safe fish production together with improved fish welfare.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"110 ","pages":"Article 102543"},"PeriodicalIF":3.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143838016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A systematic analysis of recirculating aquaculture systems (RAS) and biofloc technology (BFT) for white leg shrimp (Litopenaeus vannamei) in the indoor farming system","authors":"Md. Abdul Halim ,&nbsp;Dania Aziz ,&nbsp;Aziz Arshad ,&nbsp;Nur Leena W. S. Wong ,&nbsp;MM Nabi ,&nbsp;Md. Ariful Islam ,&nbsp;Fadhil Syukri","doi":"10.1016/j.aquaeng.2025.102544","DOIUrl":"10.1016/j.aquaeng.2025.102544","url":null,"abstract":"<div><div>This study analyzes recirculating aquaculture systems (RAS) and biofloc technology (BFT) for indoor white leg shrimp (<em>Litopenaeus vannamei</em>) farming, focusing on efficiency, sustainability, and economic viability. RAS and BFT are innovative methods that address environmental and resource challenges in traditional <em>L. vannamei</em> farming. RAS uses filtration to maintain water quality, allowing precise control and reduced water use. RAS offers excellent water control and biosecurity for high-density farming but requires high investment and energy, limiting small-scale use. BFT uses microbes to turn waste into protein-rich floc, offering a cost-effective, eco-friendly option, but struggles with microbial balance and water clarity. Both approaches strive to minimize environmental impact while enhancing aquaculture productivity. This review covers 2010–2024 studies from Scopus and PubMed, focusing on experimental and field research. Research on these systems has increased since 2013, highlighting the focus on sustainable aquaculture. The key findings include growth parameters, proximate composition of <em>L. vannamei</em>, bacterial loads, and water quality parameters were compared by these techniques. Results indicate that the choice of system depends on specific farming goals, resource availability, and market demands. These findings highlight the potential of these technologies to improve productivity, sustainability, and address global food security. Future research should focus on integrating modern technologies-such as the Internet of Things (IoT), Artificial Intelligence (AI), big data, cloud computing, 5 G, automatic identification systems, high-resolution satellite imagery, machine learning, in situ sensor networks, and robotics into RAS and BFT systems.</div></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"110 ","pages":"Article 102544"},"PeriodicalIF":3.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}