Tudorache, C., Schaaf, M.J., and Slabbekoorn, H. (2013) Covariation between behaviour and physiology indicators of coping style in zebrafish (Danio rerio). The Journal of endocrinology. 219(3):251-258.
All vertebrates exhibit physiological responses to a wide variety of stressors. The amplitude and profile of the response
depend on the intensity, duration, controllability and predictability of the stressor, but there is also individual variation
in the response, termed coping style. A better understanding of the expression of coping styles is of great value for medical
applications, animal welfare issues and conservation. Here, we investigated the effect of repeated netting stress on proactive
and reactive zebrafish (Danio rerio) as an upcoming model system for stress research. Fish were separated by coping styles according to the order of entering
a novel environment. Subsequently, repeated netting stress was applied as stressor, over a period of 21 days. Full-body cortisol
levels were determined at 0, 15, 30, 60 and 120
min after the last repeated stress event. Our results show that reactive fish
display i) increased basal cortisol concentrations after being repeatedly stressed, ii) higher cortisol secretion over time
and iii) slow recovery of cortisol concentration towards basal levels after the last repeated stress event. This study shows
for the first time in zebrafish that different coping styles are associated with different cortisol responses during the recovery
from stress over time and that coping styles can explain otherwise unaccounted variation in physiological stress responses.
No data available
Your Input Welcome
Thank you for submitting comments. Your input has been emailed to ZFIN curators who may contact you if
additional information is required.
Oops. Something went wrong. Please try again later.