Table of Contents
Fishes, Volume 4, Issue 1 (March 2019)
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Cover Story (view full-size image) Although fish are used in high numbers for laboratory experiments, assessment of the welfare of [...] Read more. Although fish are used in high numbers for laboratory experiments, assessment of the welfare of fish remains a challenge. Fractal dimension (FD) analysis allows insight into the complexity of movement and can be applied to animal behavior. Utilizing data of the swimming trajectories of zebrafish and FD analysis it was possible to distinguish between healthy control fish and those that had experienced painful treatment. Further administration of lidocaine prevented a decline in the complexity of movement. This study presents an arbitrary pain intensity scale that could be used to gauge when to intervene and provide pain relief in studies using zebrafish. View this paper.