Application of an Assay to Measure Metabolic Rate in Aquatic Plant and Animal Species to Predict Growth Rate

Technology #ua15-137

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Benjamin Renquist
Assistant Professor, Animal and Comparative Biomedical Sciences
Managed By
Tod Mccauley


This invention uses an assay that can predict the growth rate of embryonic aquatic animals, cells from aquatic animals, or aquatic plants. The growth rate is measured by colorometric/fluorometric signals.


Previous research has shown that the assay described in this invention can be used to measure the production of reducing equivalents from the metabolism of nutrients. Further research has shown this same assay is also able to predict the growth rate of aquatic plant and animal species. This can be useful in the field of aquaculture to sort the fish being bred. Fish displaying optimal growth can be easily selected, thereby increasing the likelihood of the fish being a larger size in adulthood.


  • Measuring the growth rate of various fish embryos, such as tilapia, trout, sturgeon and shellfish.
  • Measuring the growth rate of plants, such as lettuce.
  • Aids in determining adverse health and environmental factors affecting the growth of the organism.


  • Limited methods exist today to predict growth of aquatic species. This invention aims to provide a means to do so.
  • Colorometric/fluorometric signals allow more measurements per sample per day than using oxygen consumption as the metabolic rate indicator.
  • No specialized equipment is required to measure the growth rate.


Benjamin Renquist


Tod McCauley

Licensing Manager, Tech Launch Arizona


Technology ID: Refer to UA Case Number UA15-137