2022 Volume 84 Issue 3 Pages 155-165
Inland aquaculture is spreading worldwide. As fish are a relatively inexpensive protein source and their demand is increasing, highly efficient fish production is necessary and thus, knowing fish volume inside aquaculture tanks is essential to prevent overstocking and overfeeding. In this experiment, a double cavity resonator with openings in resonator walls were used to explore the possibility of non-invasive and in-situ fish volume estimation. As reference and live samples, air to validate derived theoretical formula and Japanese dace fish (Tribolon hakonensis) for proof of concept were used. A high correlation between the actual and estimated volume was obtained with R-squared (R2) value of 0.994. Finally, a fish volume estimation model was established that had a high correlation with R2 value of 0.985.
