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1. Social license and consumer perceptions of farm-raised fish

Author:
Kristin K. Runge; Bret R. Shaw; Laura Witzling; Christopher Hartleb; Shiyu Yang; Deidre M. Peroff
Source:
Aquaculture 2021 v.530 pp. 735920
ISSN:
0044-8486
Subject:
raceways,   etc   ; consciousness; consumer attitudes; farmed fish; farmers; fish culture; food industry; government agencies; grocery stores; organic foods; ponds; surveys; Great Lakes region; Wisconsin;     Show all 14 Subjects
Abstract:
... This study uses personal predispositions, attitudes towards food industry actors, media use and food consciousness as variables to explore trust in farm-raised and the degree to which respondents believe that aquaculture benefits their home state. The authors use a random sample mail survey of primary food shoppers in Wisconsin, a state in the Great Lakes region of the United States, where aquacul ...
DOI:
10.1016/j.aquaculture.2020.735920

2. Sustainable production of microalgae in raceways: Nutrients and water management as key factors influencing environmental impacts

Author:
Axel Herrera; Giuliana D’Imporzano; Francisco Gabriel Acién Fernandez; Fabrizio Adani
Source:
Journal of cleaner production 2021 v.287 pp. 125005
ISSN:
0959-6526
Subject:
raceways,   etc   ; algae culture; aquaculture feeds; carbon dioxide; climate change; depuration; energy efficiency; environmental impact; environmental performance; fertilizer application; flue gas; inventories; liquids; mineral fertilizers; nutrients; slurries; supply; toxicity; wastewater; water; water management; Spain;     Show all 22 Subjects
Abstract:
... Microalgae production has taken on importance for its ability to be more energy efficient than land crops, with low input requirements and a wide number of possible applications.This work aimed to evaluate the environmental impacts of the production of microalgae for use as bio-stimulants and aquaculture feeds. Inventory data from a real production facility of 1 ha located in Almería (Spain) were ...
DOI:
10.1016/j.jclepro.2020.125005

3. Improved CO2 utilization efficiency using membrane carbonation in outdoor raceways

Author:
Everett Eustance; Yen-Jung Sean Lai; Tarun Shesh; Bruce E. Rittmann
Source:
Algal research 2020 v.51 pp. 102070
ISSN:
2211-9264
Subject:
raceways,   etc   ; algae; alkalinity; ammonium bicarbonate; biomass production; carbon; carbon dioxide; carbonation; diffusion; dissolved inorganic carbon; environment; nitrates; pH; research;     Show all 14 Subjects
Abstract:
... Membrane carbonation, the delivery of CO₂ by diffusion through non-porous hollow fiber membranes, was successfully integrated into outdoor raceways (5.6 m², 900 L) and operated continuously for up to 45 days. Biomass productivity associated with membrane carbonation was similar to using traditional sparging, but the average carbon utilization efficiencies for membrane carbonation was 3-fold higher ...
DOI:
10.1016/j.algal.2020.102070

4. Evidence of Positive Phototaxis in Paddlefish: Implications for Larval Sampling

Author:
Jason D. Schooley; Adam Geik; Willis Sontheimer; Dennis L. Scarnecchia
Source:
Transactions of the Kansas Academy of Science 2020 v.123 no.1-2 pp. 243-250
ISSN:
0022-8443
Subject:
raceways,   etc   ; Polyodon spathula; emissions; fish larvae; hatcheries; phototaxis; rearing; reproduction; rivers; trapping; traps; turbidity; yolk sac;     Show all 13 Subjects
Abstract:
... Paired lit and unlit quatrefoil traps were used to examine the photic response of Paddlefish Polyodon spathula yolk-sac larvae (YSL) and exogenous-feeding larvae (EFL) under controlled conditions in a hatchery. One lit and one unlit trap were placed in two identical circular raceways containing approximately 10,000 YSL and EFL for 20 2-min trials. Lit traps captured nearly 10x more larvae than unl ...
DOI:
10.1660/062.123.0124

5. Application of computational fluid dynamics to raceways combining paddlewheel and CO2 spargers to enhance microalgae growth

Author:
Adi Kusmayadi; George P. Philippidis; Hong-Wei Yen
Source:
Journal of bioscience and bioengineering 2020 v.129 no.1 pp. 93-98
ISSN:
1389-1723
Subject:
raceways,   etc   ; Chlorella vulgaris; biomass production; carbon dioxide; cell growth; computer simulation; fluid mechanics; light intensity; microalgae; simulation models;     Show all 10 Subjects
Abstract:
... The present study investigated the effect of light intensity and mixing on microalgae growth in a raceway by comparing the performance of a paddlewheel to a combination of paddlewheel and CO2 spargers in a 20 L raceway. The increase of light intensity was known to be able to increase the microalgal growth rate. Increasing paddlewheel rotation speed from 13 to 30 rpm enhanced C. vulgaris growth by ...
DOI:
10.1016/j.jbiosc.2019.06.013

6. Year-long production of Scenedesmus almeriensis in pilot-scale raceway and thin-layer cascade photobioreactors

Author:
Ainoa Morillas-España; Tomas Lafarga; Cintia Gómez-Serrano; Francisco Gabriel Acién-Fernández; Cynthia Victoria González-López
Source:
Algal research 2020 v.51 pp. 102069
ISSN:
2211-9264
Subject:
raceways,   etc   ; Scenedesmus; autumn; biomass production; design; microalgae; oxygen; photobioreactors; photoinhibition; research; solar energy; spring; strains; summer; temperature; winter;     Show all 16 Subjects
Abstract:
... Biomass of Scenedesmus almeriensis was produced outdoors for 12 months using three different photobioreactor designs. Optimum dilution rates to achieve the highest biomass productivities were 0.2 day⁻¹ for raceways and 0.3 day⁻¹ for thin-layer reactors. Biomass productivities achieved using thin-layer cascade photobioreactors during the months of higher photosynthetic activity reached 30–35 g/m²·d ...
DOI:
10.1016/j.algal.2020.102069

7. A dynamic thermal algal growth model for pilot-scale open-channel raceways

Author:
Carlos Quiroz-Arita; Myra L. Blaylock; Patricia E. Gharagozloo; Thomas H. Bradley; Thomas Dempster; John McGowen; Ryan W. Davis
Source:
Bioresource technology reports 2020 v.10 pp. 100405
ISSN:
2589-014X
Subject:
raceways,   etc   ; Nannochloropsis; absorption; autumn; basal metabolism; capacitance; convection; differential equation; growth models; microalgae; nutrient availability; simulation models; temperature; weather;     Show all 14 Subjects
Abstract:
... This study describes the makeup of and results from a simulation consisting of a lumped thermal model integrated with a dynamic algae growth model to simulate the microalgae productivity of an open-channel raceway cultivation system. The thermal model considers the dynamic effects of weather, light absorption, convective heat transfer, radiation heat transfer, conductive heat transfer, thermal cap ...
DOI:
10.1016/j.biteb.2020.100405

8. 3D modelling of non-uniform and turbulent flow in vertical slot fishways

Author:
J.F. Fuentes-Pérez; A.T. Silva; J.A. Tuhtan; A. García-Vega; R. Carbonell-Baeza; M. Musall; M. Kruusmaa
Source:
Environmental modelling & software 2018 v.99 pp. 156-169
ISSN:
1364-8152
Subject:
raceways,   etc   ; computer software; environmental models; freshwater fish; hydrology; migratory behavior; rivers; turbulent flow;     Show all 8 Subjects
Abstract:
... Global stocks of freshwater fish have been on the decline for decades, driven in part by the obstruction of their migration routes by anthropogenic barriers. To mitigate such impacts, fishways have been developed to facilitate bidirectional fish migration. These structures are affected by the hydrological variability of rivers, which can cause changes in the up and downstream boundary conditions o ...
DOI:
10.1016/j.envsoft.2017.09.011

9. CFD-DEM simulation of raceway formation in an ironmaking blast furnace

Author:
Zhen Miao; Zongyan Zhou; A.B. Yu; Yansong Shen
Source:
Powder technology 2017 v.314 pp. 542-549
ISSN:
0032-5910
Subject:
raceways,   etc   ; furnaces; gases; powders; simulation models;     Show all 5 Subjects
Abstract:
... This paper presents a CFD-DEM study of gas-solid flow in the raceway region in an ironmaking blast furnace (BF). In the simulation, 120,000 spherical particles are packed into a full-scale 2D slot BF geometry. Gas is injected into the geometry via tuyeres, generating raceways in different sizes and shapes under different conditions. It is observed that the raceway characteristics are much more com ...
DOI:
10.1016/j.powtec.2016.11.039

10. Model of temperature, evaporation, and productivity in elevated experimental algae raceways and comparison with commercial raceways

Author:
George Khawam; Peter Waller; Song Gao; Scott Edmundson; Mark S. Wigmosta; Kimberly Ogden
Source:
Algal research 2019 v.39 pp. 101448
ISSN:
2211-9264
Subject:
raceways,   etc   ; algae; algae culture; algorithms; biomass production; computer software; energy balance; evaporation; feedstocks; models; soil heat flux; temperature profiles; Arizona;     Show all 13 Subjects
Abstract:
... Elevated Experimental Raceways (EERs) have been used at many research sites in the United States to evaluate algal biomass productivity. This paper develops temperature and evaporation models for EERs and then evaluates whether the temperature profile and resultant productivity in an EER is representative of large-scale commercial raceways. Open water surface evaporation and temperature models wit ...
DOI:
10.1016/j.algal.2019.101448

11. Fishway with two entrance branches: Understanding its performance for potamodromous Mediterranean barbels

Author:
F. J. Bravo‐Córdoba; F. J. Sanz‐Ronda; J. Ruiz‐Legazpi; L. Fernandes Celestino; S. Makrakis
Source:
Fisheries management and ecology 2018 v.25 no.1 pp. 12-21
ISSN:
0969-997X
Subject:
raceways,   etc   ; Luciobarbus bocagei; atmospheric pressure; energy; environmental factors; potamodromous fish; telemetry; transponders; water temperature;     Show all 9 Subjects
Abstract:
... Many fish passes have been built across the world in recent years. This study analyses the performance of a modified type of pool and weir fishway with two access branches, using passive integrated transponder telemetry. A circum‐Mediterranean barbel, Luciobarbus bocagei (Steindachner, 1864), was chosen as the target species. Both hydraulic values (flow and volumetric energy dissipation) and biolo ...
DOI:
10.1111/fme.12260

12. Effects of low and high pH on sea urchin settlement, implications for the use of alkali to counter the impacts of acidification

Author:
Benjamin Mos; Maria Byrne; Symon A. Dworjanyn
Source:
Aquaculture 2020 v.528 pp. 735618
ISSN:
0044-8486
Subject:
raceways,   etc   ; Bacillariophyceae; Echinoidea; acidification; alkalinity; aquaculture systems; calcification; carbon dioxide; carbonates; invertebrates; juveniles; larvae; macroalgae; metamorphosis; pH; photosynthesis; postlarvae; seawater; tanks;     Show all 19 Subjects
Abstract:
... Respiration, photosynthesis, and calcification of cultured organisms and biological substrata can substantially alter the pH and other carbonate parameters of water in aquaculture systems. One such example is the diel cycle of photosynthesis and respiration by diatoms and seaweeds growing on ‘settlement plates’ used to induce metamorphosis of invertebrate larvae and as food for post-larvae. We doc ...
DOI:
10.1016/j.aquaculture.2020.735618

13. Computational fluid dynamics characterization of a novel mixed cell raceway design

Author:
Chanwoo Chun; Brian J. Vinci; Michael B. Timmons
Source:
Aquacultural engineering 2018 v.81 pp. 19-32
ISSN:
0144-8609
Subject:
raceways,   etc   ; fluid mechanics; geometry; models; nozzles; weirs;     Show all 6 Subjects
Abstract:
... Computational fluid dynamics (CFD) analysis was performed on a new type of mixed cell raceway (MCR) that incorporates longitudinal plug flow using inlet and outlet weirs for the primary fraction of the total flow. As opposed to conventional MCR’s wherein vortices are entirely characterized by the boundary conditions at inlet nozzles and outlet center drains in the center of each cell, the new MCR ...
DOI:
10.1016/j.aquaeng.2018.02.002
CHORUS:
10.1016/j.aquaeng.2018.02.002

14. Duration in captivity affects competitive ability and breeding success of male but not female steelhead trout (Oncorhynchus mykiss)

Author:
Barry A. Berejikian; Christopher P. Tatara; Donald M. Van Doornik; Michael A. Humling; Matt R. Cooper; Chris R. Pasley; Jeffrey J. Atkins
Source:
Canadian journal of fisheries and aquatic sciences 2020 v.77 no.6 pp. 1000-1009
ISSN:
1205-7533
Subject:
raceways,   etc   ; Oncorhynchus mykiss; anadromous fish; breeding; captive animals; females; gene flow; hatcheries; males; nesting; progeny; rearing; reproductive success; spawning; watersheds; Washington (state);     Show all 16 Subjects
Abstract:
... Female steelhead trout (Oncorhynchus mykiss) reared for 1 year (traditional, “S1”) and 2 years (experimental, “S2”) in captivity in the Methow River Basin, Washington, produced very similar numbers of offspring in replicate spawning channels over 3 consecutive years. In contrast, S1 anadromous males outcompeted S2 males for access to nesting females and, as a result, produced significantly more of ...
DOI:
10.1139/cjfas-2019-0255

15. Effectiveness of a multi-slot vertical slot fishway versus a standard vertical slot fishway for potamodromous cyprinids

Author:
Filipe Romão; Paulo Branco; Ana L. Quaresma; Susana D. Amaral; António N. Pinheiro
Source:
Hydrobiologia 2018 v.816 no.1 pp. 153-163
ISSN:
0018-8158
Subject:
raceways,   etc   ; Luciobarbus bocagei; Luciobarbus comizo; climate; cost effectiveness; fish communities; potamodromous fish; turbulent flow;     Show all 8 Subjects
Abstract:
... Developing and testing new fishway designs is important to improve these facilities. Discharge-efficient passage systems are required in Mediterranean regions and other areas with dry climates. The present study compares the passage performance of the Iberian barbel, Luciobarbus bocagei (Steindachner, 1864), a potamodromous cyprinid, negotiating two different types of vertical slot fishways (VSF): ...
DOI:
10.1007/s10750-018-3580-5

16. Spirulina platensis biomass composition is influenced by the light availability and harvest phase in raceway ponds

Author:
Francisco Gerhardt Magro; Ana Cláudia Margarites; Christian Oliveira Reinehr; Gabriel Crivellaro Gonçalves; Grazieli Rodigheri; Jorge Alberto Vieira Costa; Luciane Maria Colla
Source:
Environmental technology 2018 v.39 no.14 pp. 1868-1877
ISSN:
1479-487X
Subject:
raceways,   etc   ; Arthrospira platensis; biomass; carbohydrate content; carbohydrates; culture media; developmental stages; fuel production; greenhouses; lighting; mixing; ponds;     Show all 12 Subjects
Abstract:
... The behavior of cyanobacteria and its potential use for biofuel production in scale-up conditions is a topic of growing importance. The aim of our work is to study the effects of illumination, stirring, and different growth phases on the cultivation of the cyanobacteria Spirulina platensis in 10 L raceways. The cultivations were carried out in a greenhouse under measured, but not controlled, illum ...
DOI:
10.1080/09593330.2017.1340352

17. The comparison of environmental flow assessment - The barrier for investment in Poland or river protection?

Author:
Agnieszka Operacz; Andrzej Wałęga; Agnieszka Cupak; Barbara Tomaszewska
Source:
Journal of cleaner production 2018 v.193 pp. 575-592
ISSN:
0959-6526
Subject:
raceways,   etc   ; diadromous fish; drinking; economics; environmental protection; rivers; stream channels; surface water; water power; Poland;     Show all 10 Subjects
Abstract:
... Investments that make use of renewable resources of flowing waters must be based on the absolute necessity of protection of the water environment and that dependent on water. In practice, it means the obligation of leaving environmental flow in the river bed in the cross section below the place of water abstraction. The places of surface water abstraction for drinking and industrial purposes are t ...
DOI:
10.1016/j.jclepro.2018.05.098

18. Simulation of shading and algal growth in experimental raceways

Author:
George Khawam; Peter Waller; Song Gao; Scott Edmundson; Michael Huesemann; Said Attalah; Kimberly L. Ogden
Source:
Algal research 2019 v.41 pp. 101575
ISSN:
2211-9264
Subject:
raceways,   etc   ; algae; algorithms; biomass production; equations; feedstocks; geometry; light intensity; models; photons; shade; summer; winter;     Show all 13 Subjects
Abstract:
... Many algae research groups use elevated experimental raceways to characterize algal biomass productivity. Side walls and a relatively large paddlewheel shade the culture and lower productivity, particularly in winter and with low culture depth. This paper presents a four-step method to calculate shading for a given raceway shape: (1) develop a computational mesh of the inner surface geometry of th ...
DOI:
10.1016/j.algal.2019.101575

19. Sensitivity of the downward to sweeping velocity ratio to the bypass flow percentage along a guide wall for downstream fish passage

Author:
Kevin Brian Mulligan; Brett Towler; Alex Haro; David P. Ahlfeld
Source:
Ecological engineering 2017 v.109 pp. 10-14
ISSN:
0925-8574
Subject:
raceways,   etc   ; fish; hydroelectric power; power plants; preferential flow; velocity;     Show all 6 Subjects
Abstract:
... Partial-depth impermeable guidance structures (or guide walls) are used as a method to assist in the downstream passage of fish at a hydroelectric facility. However, guide walls can result in a strong downward velocity causing the approaching fish to pass below the wall and into the direction of the turbine intakes. The objective of this study was to describe how the ratio of the vertical velocity ...
DOI:
10.1016/j.ecoleng.2017.08.012

20. Comparison of productivity and economic analysis of microalgae cultivation in open raceways and flat panel photobioreactor

Author:
Sudhanya Banerjee; Shri Ramaswamy
Source:
Bioresource technology reports 2019 v.8 pp. 100328
ISSN:
2589-014X
Subject:
raceways,   etc   ; air temperature; biobased products; bioenergy; biomass; biorefining; climatic factors; economic analysis; feedstocks; microalgae; models; photobioreactors; ponds; relative humidity; solar radiation; wind speed; United States;     Show all 17 Subjects
Abstract:
... Microalgae is a promising biomass feedstock for the production of valuable bioenergy and bioproducts. Here the comparative differences of microalgae productivity potential in open raceway ponds and flat panel photobioreactors for different geographical locations in the United States are presented. Microalgae productivity potential was determined using a first-principles based model incorporating g ...
DOI:
10.1016/j.biteb.2019.100328