Aquacultural Engineering最新文献

{"title":"Real-time ammonia estimation in recirculating aquaculture systems: A data assimilation approach","authors":"Alaa Jamal ,&nbsp;Ahmed Nasser ,&nbsp;Jaap van Rijn","doi":"10.1016/j.aquaeng.2024.102432","DOIUrl":"https://doi.org/10.1016/j.aquaeng.2024.102432","url":null,"abstract":"<div><p>Recirculating aquaculture systems offer sustainable fish production but face challenges related to ammonia levels. Ammonia, particularly the un-ionized fraction, NH3, can negatively impact fish growth and health. Traditional ammonia estimation methods, including offline analyses and affordable, yet inaccurate, in-situ measurements, lack the ability to provide reliable real-time insights. Data assimilation combines simulation models and in-situ measurements to provide more accurate estimations. In this study, we demonstrate a novel approach using data assimilation to enhance real-time ammonia estimation in RAS. First, ammonia dynamics are described by forming equations that constitute a simulation model, based on the feeding amounts and the biofilter removal rate parameters. Then, an extended Kalman filter is presented and customized to integrate the simulation model and total ammonia nitrogen measurements for estimating NH3, NH4+, and biofilter parameters. We validated our method through synthetic and laboratory case studies and demonstrated its superior estimation capability as compared to in situ measurements or simulation models. Furthermore, improved ammonia estimation led to improved current and future fish weight estimations, which can be essential for reliable RAS management. The proposed approach facilitates wider adoption of DA in challenging estimations in aquaculture.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102432"},"PeriodicalIF":4.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141324838","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":"In situ measurements and simulations of a net cage in currents","authors":"Sihan Gao ,&nbsp;Chunling Wang ,&nbsp;Stig Atle Tuene ,&nbsp;Guoyuan Li ,&nbsp;Houxiang Zhang ,&nbsp;Lars Christian Gansel","doi":"10.1016/j.aquaeng.2024.102429","DOIUrl":"https://doi.org/10.1016/j.aquaeng.2024.102429","url":null,"abstract":"<div><p>Accurate predictions of net cages’ deformation under current loads are vitally important for the welfare of stocked fish and the safety of cage structures. In this study, a scaled cage model was deployed at a fish farm. The incoming flow profile was measured through an Acoustic Doppler Current Profiler (ADCP) with high resolution in the depth direction, and the flow inside the cage was measured through an Acoustic Doppler Vector (ADV). Pressure tags were applied to capture the lifting of the cage under varying current conditions. The incoming flow velocity shows a good correlation with the lifting of the cage, and in general the rate of the cage being lifted by the flow increases with flow speed. However, the flow speed measured inside the cage is much less correlated to the upstream flow and cage deformation. Numerical cage models consisting of truss elements were developed; two flow reduction factors <em>r</em> = 0.9 and 0.8 derived from empirical formulas and measurements inside cages in previous studies were applied. The numerical model with <em>r</em> = 0.8 can predict the cage deformation well, with most relative deviations in the depth directions being less than 15%. The study indicates the feasibility of applying pressure tags with high precision to estimate current-induced cage deformation in situ, especially when a cage is experiencing obvious deformation.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102429"},"PeriodicalIF":4.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0144860924000402/pdfft?md5=f3dfe4b07775276057b782b62e58837d&pid=1-s2.0-S0144860924000402-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141298051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing instance segmentation: Leveraging multiscale feature fusion and attention mechanisms for automated fish weight estimation","authors":"Xiaoning Yu ,&nbsp;Jincun Liu ,&nbsp;Jinze Huang ,&nbsp;Feng Zhao ,&nbsp;Yaqian Wang ,&nbsp;Dong An ,&nbsp;Tong Zhang","doi":"10.1016/j.aquaeng.2024.102427","DOIUrl":"10.1016/j.aquaeng.2024.102427","url":null,"abstract":"<div><p>The accurate estimation of fish weight relies on the crucial parameter of individual fish contour features. While instance segmentation proves effective in extracting fish contours, challenges arise from diverse fish postures and reduced image sharpness underwater. Current instance segmentation methods often struggle to effectively balance global and local detailed features, which can result in inaccurate positioning of contour keypoints and consequently limit the accuracy of fish weight estimation. To overcome this, our study introduces a novel instance segmentation network tailored for precise fish contour extraction. The proposed approach incorporates multi-scale feature fusion and an attention mechanism based on the Segmenting Objects by Locations (SOLO) network, referred to as SOLO-MFFA. This paper designs a multi-scale context aggregation module to integrate features with a wider range of receptive fields, augmenting the model's capability to comprehend both local features and global information. At the same time, the introduction of a mixed-domain attention mechanism emphasizes more critical channel features and simultaneously improves the localization accuracy of contour points. Compared with SOLO and its improved model CAM-SOLO on the fish instance segmentation dataset, SOLO-MFFA demonstrated an effective improvement, with a 4.3% and 1.6% increase in mAP (mean Average Precision), respectively. The Decoupled-SOLO-MFFA achieved higher mAP. The visualization results also demonstrate that the contour features extracted in this paper are smoother and more accurately positioned. Additionally, in comparison to other well-known instance segmentation networks, our method has demonstrated significant improvements in both qualitative and quantitative evaluations. Furthermore, the integration of contour features derived from Decoupled-SOLO-MFFA, along with binocular vision, was utilized for the precise estimation of fish perimeter and weight. The findings reveal a strong correlation between the perimeter calculated by Decoupled-SOLO-MFFA and the actual weight, with a notably reduced error in weight estimation. Compared to previous methods, RMSE, MAE, and MAPE of the linear model constructed in this paper decreased by 3.92, 3.19, and 1.4%.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102427"},"PeriodicalIF":4.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141029635","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":"Sulphate removal by membrane filtration minimizes the risk of hydrogen sulphide formation in fixed bed biofilters","authors":"Paulo M. Fernandes ,&nbsp;Sanni L. Aalto ,&nbsp;Helga Ø. Åsnes ,&nbsp;Paula Rojas-Tirado ,&nbsp;Åse Åtland ,&nbsp;Carlos O. Letelier-Gordo","doi":"10.1016/j.aquaeng.2024.102426","DOIUrl":"https://doi.org/10.1016/j.aquaeng.2024.102426","url":null,"abstract":"<div><p>Hydrogen sulphide (H₂S) is one of the suspected reasons behind sudden mass fish mortalities in recirculating aquaculture systems (RAS) in recent years. H₂S production in aquaculture systems depends on sulphate and organic matter availability, presence of specific microbial groups, and local anoxic conditions. Specific potential H₂S production hotspots in RAS have been identified within biofilters and in accumulated sludge. Current H₂S control methods have been identified, such as improved hydrodynamics, increasing degassing efficiency, chemical addition of hydrogen peroxide or ozone, but have not been efficient or widespread applied. In this study, a nanomembrane filtration system was installed at a brackish water (mixture of seawater and freshwater to 15 ppt) smolt production site in Norway to remove sulphate ions from the seawater intake line (15 times reduction). The hydrogen sulphide production potential of the nanofiltered seawater mixed with freshwater (n = 3) was compared to an unfiltered seawater and freshwater mixture (15 ppt, n = 3) for 42 days in experimental scale biofilters using industrial fixed bed media. In both treatments, the linear production of H₂S started around the time that bulk water measurements of oxidation-reduction potential (ORP) and dissolved oxygen (DO) dropped below 0 mV and 1 mg/L, respectively. As expected, the highest H₂S concentration was observed in unfiltered water reactors, which also reached the highest concentration faster than filtered-water reactors. A 15 times reduction in initial sulphate levels by the nanofiltration membrane led to overall three times lower H₂S production and delayed the onset of production by two days. Hence, membrane-filtering intake water decreased the risk of H₂S production. A limitation in this study, however, was that sulphate was not completely removed from the intake water, and the next steps should evaluate how increasing the effort of membrane operation to completely remove sulphate affect the dynamics of H₂S production in RAS.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102426"},"PeriodicalIF":4.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0144860924000372/pdfft?md5=87aadcb834e98a66cbf5f2787a1680ab&pid=1-s2.0-S0144860924000372-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140947755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An evolutionary approach to dissolved oxygen mathematical modeling: A case study of the Klamath River","authors":"W.K. Wong ,&nbsp;Dini Fronitasari ,&nbsp;Filbert H. Juwono ,&nbsp;Jeffery T.H. Kong","doi":"10.1016/j.aquaeng.2024.102428","DOIUrl":"10.1016/j.aquaeng.2024.102428","url":null,"abstract":"<div><p>Aquaculture has emerged as a crucial sector in many countries. In the Recirculating Aquaculture System (RAS), Dissolved Oxygen (DO) levels are critical to the health of aquatic animals. As DO sensors are costly, a number of studies have proposed a soft sensor technique utilizing machine learning for estimating DO levels in water. However, the existing research work mainly focuses on black-box approaches, which do not provide numerical analysis between the DO levels and the related parameters. To solve this issue, a sequential Genetic Programming (GP) approach with an evolutionary refinement method is proposed to generate a mathematical expression that represents DO levels in water. In particular, a coarse mathematical model is generated using GP and subsequently fine-tuned using the Covariance Matrix Adaptation Evolution Strategy (CMA-ES). As a study case, the Klamath River dataset is used to generate the model. The evaluation of our proposed method uses datasets from both the Klamath River and the Fanno Creek. Two models are generated in this paper; one model uses six features, while the other only employs three. The results indicate that the model with six features exhibits relatively higher accuracy. However, it is worth noting that a smaller dataset of features is also capable of achieving generalization of the model.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102428"},"PeriodicalIF":4.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141029724","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":"Impact of the biological fouling on the hydrodynamic characteristics of nets under different current and attack angle conditions","authors":"Songchen Yu ,&nbsp;Hongde Qin ,&nbsp;Peng Li ,&nbsp;Fangyu Gong","doi":"10.1016/j.aquaeng.2024.102416","DOIUrl":"https://doi.org/10.1016/j.aquaeng.2024.102416","url":null,"abstract":"<div><p>The impact of biological fouling on the hydrodynamic performance of nets is examined in this paper. Since the safety and reliability of the net are threatened by biological fouling, particularly in the context of drag forces and flow characteristics. The drag forces exerted on clean nets and those affected by biological fouling under different attack angles (90° and 45°) are compared. The results highlight that biological fouling increases drag significantly, with 26.2 % to 65.8 % higher drag compared to clean nets within specific solidity ranges. As such, traditional drag coefficient formulas may not accurately predict the drag for biofouling nets. Aside from this, it is found that biological fouling enhances the shielding effect behind net twines, particularly at the 45° attack angle. Notably, significant velocity attenuation and fluctuation behind the aperture center of biofouling nets are observed, especially at the 45° attack angle. Furthermore, how the attack angle affects the vorticity field of biofouling nets on different characteristic planes are also assessed in this paper, aiming to provide insights into understanding how biological fouling alters the flow dynamics around the net structure, potentially affecting its performance and susceptibility to excitations such as currents/waves.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102416"},"PeriodicalIF":4.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638439","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":"MusselCF, a user-friendly toolbox to estimate the physiological carbon footprint of mussels in suspended aquaculture","authors":"Manuel Pájaro ,&nbsp;Isabel Fuentes-Santos ,&nbsp;Uxío Labarta ,&nbsp;Antonio A. Alonso ,&nbsp;X. Antón Álvarez-Salgado","doi":"10.1016/j.aquaeng.2024.102415","DOIUrl":"https://doi.org/10.1016/j.aquaeng.2024.102415","url":null,"abstract":"<div><p>Interest on the potential CO₂ sequestration of marine bivalve aquaculture has increased during the last decade. However, there is still some controversy about which biological processes are involved and how to estimate their contribution to the carbon footprint of bivalve aquaculture. This work considers the dissolved inorganic carbon, CO₂ and alkalinity fluxes linked to flesh and shell growth, calcification, respiration, faeces egestion, and ammonia excretion, accounting also for the RDOC production associated to these processes. We have developed an algorithm for a dynamic estimation of these fluxes based on a net production DEB growth model for mussels. The resulting model has been implemented in Python to create a toolbox with a graphical user interface. This toolbox allows the selection of different culture strategies, in terms of seeding date, seed size and culture length, and consequently analyzes the carbon footprint and impact on the carbonate chemistry of seawater of aquaculture management.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"105 ","pages":"Article 102415"},"PeriodicalIF":4.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0144860924000268/pdfft?md5=b83841f2b18418e26d5c2fc89da06354&pid=1-s2.0-S0144860924000268-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140555263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transitioning from wild seed fishery to Seed Mussel Collectors (SMCs): Reviewing the efficiency of collectors for seed provisioning in mussel bottom culture","authors":"Wouter van Broekhoven ,&nbsp;Marnix R. van Stralen ,&nbsp;Karin Troost ,&nbsp;Jacob J. Capelle","doi":"10.1016/j.aquaeng.2024.102414","DOIUrl":"10.1016/j.aquaeng.2024.102414","url":null,"abstract":"<div><p>The availability of mussel seed is a critical aspect in mussel farming. Since 2009, the Dutch mussel sector has been transitioning from wild seed fishery to suspended seed collectors (Seed Mussel Collectors, or SMCs). Collector systems using either ropes or nets as settlement substrate are placed in Oosterschelde Bay, the Wadden Sea, and the North Sea annually. We analyzed detailed harvest data from 2010 until 2022, to investigate the efficiency of different systems, identify differences between years and areas, and assess how production can be optimized. Additionally, numerical density, biomass, and shell lengths of mussels from 0.375 mm shell length were recorded on SMC ropes at one SMC location during a full growth season to evaluate biomass-density relations and assess the process of self-thinning on the ropes. Total harvest of SMC mussel seed increased over the period 2010–2022, from 8.0 ×10⁶ kg to 21.0 ×10⁶ kg fresh weight. Harvest per unit substrate was remarkably stable over the years across sites, with a lower mean in Oosterschelde Bay (∼2.56 kg m⁻¹) than in the Wadden Sea (∼3.28 kg m⁻¹). Ropes were found to provide a greater yield per unit area than nets, but nets are less labor-intensive to use. Occurrence of density-dependent growth on the ropes was indicated by the allometric relation between mussel biomass and mussel density. A positive relation between density and growth rate suggested that competition increased with growth rate. In the growth data covering a full SMC season, we first observed a rapid numerical increase as newly settled mussels continued to grow into the measured size range. This was followed by a period of rapid numerical reduction and increasing biomass, indicating self-thinning. Finally numerical reduction stabilized and biomass increase accelerated coupled with comparatively slower shell length increase. The self-thinning occurred between approximately 2.3 mm and 11.6 mm mean shell length. Our analysis of 12 years of production data shows that SMC seed is a robust and annually more reliable alternative to wild capture fishery as a seed provisioning resource for mussel culture. Production per unit substrate does not appear to be easily amenable to further improvement. Production per unit area showed no indication of overstocking on the scale of the SMC plots, suggesting that production gains could be made by increasing substrate density.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"105 ","pages":"Article 102414"},"PeriodicalIF":4.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0144860924000256/pdfft?md5=505fafc8e090068a181ed8aa4d8c7815&pid=1-s2.0-S0144860924000256-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140398888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design, deployment, and operation of an experimental offshore seaweed cultivation structure","authors":"Zachary Moscicki ,&nbsp;M. Robinson Swift ,&nbsp;Tobias Dewhurst ,&nbsp;Michael MacNicoll ,&nbsp;Michael Chambers ,&nbsp;Igor Tsukrov ,&nbsp;David W. Fredriksson ,&nbsp;Peter Lynn ,&nbsp;Melissa E. Landon ,&nbsp;Beth Zotter ,&nbsp;Noah MacAdam","doi":"10.1016/j.aquaeng.2024.102413","DOIUrl":"10.1016/j.aquaeng.2024.102413","url":null,"abstract":"<div><p>Seaweed cultivation systems suitable for offshore and exposed locations have the potential to enable expansion of global seaweed production to levels capable of substantially supplementing or offsetting terrestrial agriculture. A demonstration scale, experimental seaweed cultivation system (farm) intended to withstand exposed ocean environments was designed, deployed, planted with kelp (a type of seaweed), monitored and decommissioned. Objectives for the field program included: [1] observation of the farm’s behavior and survivability in exposed ocean conditions, [2] demonstration of novel farm system design features and component technologies, and [3] evaluation of farm operability. Novel design features included a lattice mooring system geometry, multi-shaft helical anchors, and the use of fiberglass rod as a replacement for rope anchor lines and kelp growth substrate in order to mitigate the risk of marine animal entanglement. New hardware was developed for transmitting tension loads to and from fiberglass rods, enabling their use in the farm. A numerical model was used in the design stage to simulate the farm in ocean conditions. Analysis results were used to specify farm components, evaluate sensitivities to installation precision, identify potential issues with component interaction, consider operational constraints and investigate the implications of single point failures. The farm was installed at a Gulf of Maine, USA site and planted with <em>Saccharina latissima</em> (sugar kelp) in November 2021 through January 2022 and monitored for one growth season. Kelp was sampled 3 times and met-ocean conditions were measured throughout the season. Kelp was harvested in May 2022 and the structure was removed June 2022. Recovered components were inspected for wear. The farm survived a series of storm events with significant wave heights greater than 2 m and at least one storm with a maximum wave height of 5.9 m. The farm system experienced only minor corrosion, wear and damage. Farm operations revealed the need for improved accessibility, tension control and anchor placement accuracy. Observations and tests revealed relatively poor kelp holdfast attachment to the fiberglass rope replacement. Nonetheless, demonstration results suggest that the experimental farming system design was suitable for use in exposed settings.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"105 ","pages":"Article 102413"},"PeriodicalIF":4.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0144860924000244/pdfft?md5=06e6ee5fba89102007a0f23683bd044c&pid=1-s2.0-S0144860924000244-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140406424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic responses of a semi-submersible integrated wind-energy-aquaculture structure under regular and irregular waves","authors":"Zhen-Qiang Jiang ,&nbsp;Chun-Wei Bi ,&nbsp;Lian-Xin Xin","doi":"10.1016/j.aquaeng.2024.102412","DOIUrl":"https://doi.org/10.1016/j.aquaeng.2024.102412","url":null,"abstract":"<div><p>Offshore aquaculture has expanded significantly, and offshore wind energy is more abundant and stable than it is on land. The integration of aquaculture facilities and offshore wind-turbine technology to build a comprehensive platform has both scientific and theoretical significance. To further investigate an integrated wind-energy and aquaculture structure and its dynamic response characteristics, we performed physical model experiments to investigate the motion response properties of the new wind-energy-aquaculture integrated structure. Regular and irregular wave experiments were conducted on a wave flume. The motion responses and mooring line tensions of the platform modules were obtained. Under regular wave conditions, the three degree-of-freedom motion response of the model under two different mooring configurations exhibit the similar trend as the wave height and wave frequency increased. The heave responses under different mooring configurations were generally consistent, whereas the surge responses exhibited low-frequency characteristics. The mooring line tensions of the taut mooring configuration changed significantly with the wave parameters, whereas those with catenary mooring exhibited minor changes. Under irregular wave conditions, structures with catenary mooring systems exhibited smaller motion responses, thereby maintaining their stability.</p></div>","PeriodicalId":8120,"journal":{"name":"Aquacultural Engineering","volume":"106 ","pages":"Article 102412"},"PeriodicalIF":4.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140327713","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}