World Aquaculture Magazine -December 2021

50 DECEMBER 2021 • WORLD AQUACULTURE • WWW.WA S .ORG Environmental Microbiology 87. https://doi.org/10.1128/AEM.02189- 20 Singh, A. and V. Kumar. 2021. Recent developments in monitoring devise for anaerobic digesters: A focus on bio-electrochemical systems. Bioresource Technology 329:124937. https://doi.org/10.1016/j. biortech.2021.124937 Smith, J.L. and J.W. Doran. 1997. Measurement and use of pH and electrical conductivity for soil quality analysis. Pages 169-185 in: Methods for Assessing Soil Quality. John Wiley & Sons, Ltd. https:// doi.org/10.2136/sssaspecpub49.c10 Striggow, B. 2013. Field Measurement of ORP Standard Procedures (No. SESDPROC-113-RI). Environmental Protection Agency. Tabatabaei, S.J., L.S. Fatemi and E. Fallahi. 2006. Effect of ammonium:nitrate ratio on yield, calcium concentration, and photosynthesis rate in strawberry. Journal of Plant Nutrition 29:1273- 1285. https://doi.org/10.1080/01904160600767575 Timmons, M., T. Guerdat and B. Vinci. 2018. 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Aquaculture International 29:57-73. https://doi.org/10.1007/ s10499-020-00609-x Observing and managing the interplay between Eh, pH and EC can provide valuable insights to farmers that can lead to improved system functionality, reduced crop loss, and improved product quality. Better monitoring devices and infrastructure to automate measurements and associated data analysis have spurred the integration of fundamental physical parameters into aquatic animal and plant farming. Until costs and knowledge obstacles are reduced however, a theoretical approach to managing Eh, pH and EC may be more practical.