Abstract
Fish as a source of acoustic signal measurement in an aquaculture tank: Acoustic sensor based time frequency analysis
Highlights
In 2016, the contribution of aquaculture to the world’s total fish production reached 47.1% compared to only 31.6% in the previous decade as obtained from statistical records from fisheries and aquaculture resources[1]
The accurate detection of acoustic signals is a challenging task in critical component for any intelligent aquaculture system within limited resources
This Acoustic technique is widely used in aquaculture, which includes self-feeders[29,30], acoustic monitoring on feeding practices[31], non-consumed pellets[32,33], and measurement of sound generated by fish[34]
Summary
In 2016, the contribution of aquaculture to the world’s total fish production reached 47.1% compared to only 31.6% in the previous decade as obtained from statistical records from fisheries and aquaculture resources[1]. Proper fish growth monitoring is necessary for managing aquaculture, as direct fish growth monitoring effects fish feed costs which is 40% of the total cost production for the industry[2]. Complicated intensive aquaculture with water turbidity and densities make it difficult to monitor fish growth, which greatly affect the diagnostics for proper food or feeding strategies. In this context, pollution and growth becomes management problems when there is overfeeding or less feeding strategy applied. Allometry has been used to estimate fish growth by fish imaging technique This method provides flexibility to optimise fish feed without extracting the fish from the tanks for weighing[4]. Depomod model provides a better predictive ability for fish growth, farm assessment and in predicting residual accumulation[5]
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