What is it about?
1. Understanding the effect of externally telemetered tagged Tigerfish to the tagging procedure using activity counts as a proxy for behaviour. 2. Understanding the effect of predation of telemetered Tigerfish and the implication to low flows in the Letaba River. 3. Understanding the management implications of the study and the use of radio telemetry to remotely monitor fish behaviour
Featured Image
Photo by Rémi Boudousquié on Unsplash
Why is it important?
Fish behavioural response when monitored in real-time can greatly improve our understanding of the aquatic ecosystem they occur in and improve our understanding of environmental stressors on the biological component. Tigerfish are considered threatened in South Africa and using radio telemetry techniques can help us improve the way we conserve this species and other large growling iconic fishes in the region.
Perspectives
This was a great study showing the use of activity sensors on fish and how this can be used as a behavioural variable when needing to remotely monitor fish. The next step is to successfully understand the behavioural responses to environmental stressors such as changes in flow, oxygen, pH, electrical conductivity and other parameters. We are almost there!
Dr. Matthew Burnett
University of KwaZulu-Natal
Read the Original
This page is a summary of: Assessing the effect of tagging and the vulnerability to predation in tigerfish (Hydrocynus vittatus, Castelnau 1861) in a water-stressed system using telemetry methods, Koedoe, December 2020, AOSIS Open Journals,
DOI: 10.4102/koedoe.v62i1.1649.
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