Abstract
Water-soluble factors associated with walleye Sander vitreus predation on either yellow perch Perca flavescens or fathead minnows Pimephales promelas markedly increased the growth rate of P. flavescens. The findings suggest that P. flavescens possess an inducible growth-promoting mechanism regulated by water-born chemicals. It may be possible to increase the growth rate of farm-raised P. flavescens by manipulating this system.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1730-1736 |
| Number of pages | 7 |
| Journal | Journal of fish biology |
| Volume | 91 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2017 |
Bibliographical note
Funding Information:The authors thank undergraduate students P. Yang, C. Barry and B. Hirshfeld for their help, J. Hemming and the staff of the Wisconsin State Laboratory of Hygiene for the P. promelas and D. Northey of Coolwater Farms, LLC for the P. flavescens eggs. This work was supported by the University of Wisconsin-Madison, Department of Animal Sciences, College of Agricultural and Life Sciences.
Publisher Copyright:
© 2017 The Fisheries Society of the British Isles
Keywords
- alarm cue
- growth
- pheromone
- predation
- walleye
- yellow perch
