High-resolution behavioral mapping of electric fishes in Amazonian habitats

Manu S. Madhav, Ravikrishnan P. Jayakumar, Alican Demir, Sarah A. Stamper, Eric S. Fortune, Noah J. Cowan

Research output: Contribution to journalArticle

Abstract

The study of animal behavior has been revolutionized by sophisticated methodologies that identify and track individuals in video recordings. Video recording of behavior, however, is challenging for many species and habitats including fishes that live in turbid water. Here we present a methodology for identifying and localizing weakly electric fishes on the centimeter scale with subsecond temporal resolution based solely on the electric signals generated by each individual. These signals are recorded with a grid of electrodes and analyzed using a two-part algorithm that identifies the signals from each individual fish and then estimates the position and orientation of each fish using Bayesian inference. Interestingly, because this system involves eavesdropping on electrocommunication signals, it permits monitoring of complex social and physical interactions in the wild. This approach has potential for large-scale non-invasive monitoring of aquatic habitats in the Amazon basin and other tropical freshwater systems.

Original languageEnglish (US)
Article number5830
JournalScientific Reports
Volume8
Issue number1
DOIs
StatePublished - Dec 1 2018
Externally publishedYes

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Electric Fish
Ecosystem
Video Recording
Fishes
Animal Behavior
Interpersonal Relations
Fresh Water
Electrodes
Water

ASJC Scopus subject areas

  • General

Cite this

Madhav, M. S., Jayakumar, R. P., Demir, A., Stamper, S. A., Fortune, E. S., & Cowan, N. J. (2018). High-resolution behavioral mapping of electric fishes in Amazonian habitats. Scientific Reports, 8(1), [5830]. https://doi.org/10.1038/s41598-018-24035-5

High-resolution behavioral mapping of electric fishes in Amazonian habitats. / Madhav, Manu S.; Jayakumar, Ravikrishnan P.; Demir, Alican; Stamper, Sarah A.; Fortune, Eric S.; Cowan, Noah J.

In: Scientific Reports, Vol. 8, No. 1, 5830, 01.12.2018.

Research output: Contribution to journalArticle

Madhav, MS, Jayakumar, RP, Demir, A, Stamper, SA, Fortune, ES & Cowan, NJ 2018, 'High-resolution behavioral mapping of electric fishes in Amazonian habitats', Scientific Reports, vol. 8, no. 1, 5830. https://doi.org/10.1038/s41598-018-24035-5
Madhav MS, Jayakumar RP, Demir A, Stamper SA, Fortune ES, Cowan NJ. High-resolution behavioral mapping of electric fishes in Amazonian habitats. Scientific Reports. 2018 Dec 1;8(1). 5830. https://doi.org/10.1038/s41598-018-24035-5
Madhav, Manu S. ; Jayakumar, Ravikrishnan P. ; Demir, Alican ; Stamper, Sarah A. ; Fortune, Eric S. ; Cowan, Noah J. / High-resolution behavioral mapping of electric fishes in Amazonian habitats. In: Scientific Reports. 2018 ; Vol. 8, No. 1.
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