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A novel Doppler based speed measurement technique for individual free-ranging fish

Abstract

A novel Doppler based speed measurement technique for free-ranging acoustically tagged fish was developed and validated through a field experiment in a marine aquaculture farm. For emulated swimming speeds in the range 25cm/s-60cm/s, an rms error of 5cm/s with a standard deviation of 4.7cm/s was achieved, and with a relative error typically less than 10% of measured speed. The technique is designed to integrate easily with existing acoustic fish telemetry systems and requires only three hydrophones to determine swimming speeds. Measurement of fish swimming speed has a wide range of applications within fisheries sciences and may become a valuable tool for assessing fish behavior and performance in marine farms.
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Category

Academic chapter

Language

English

Author(s)

Affiliation

  • SINTEF Ocean / Aquaculture
  • Norwegian University of Science and Technology

Year

2019

Publisher

IEEE (Institute of Electrical and Electronics Engineers)

Book

2019 IEEE SENSORS Proceedings

ISBN

9781728116341

View this publication at Norwegian Research Information Repository