TY - JOUR
T1 - Relationships between circulating androgens, aggressive behaviour and breeding tubercles in males of the common bream Abramis brama L. in an aquarium environment
AU - Poncin, P.
AU - Termol, C.
AU - Matondo, B.N.
AU - Philippart, J.C.
AU - Kestemont, P.
N1 - MEDLINE® is the source for the MeSH terms of this document.
PY - 2011/9/1
Y1 - 2011/9/1
N2 - In this study, relationships between circulating androgens, aggressive behaviour and breeding tubercles in males of common bream Abramis brama were examined in an aquarium environment. The breeding tubercles of fish were counted, the number of attacks was quantified by male status and circulating rates of testosterone and 11-ketotestosterone from blood plasma were analysed using radioimmunoassay procedures. The results revealed that no significant differences were found between circulating testosterone and 11-ketotestosterone in territorial and nonterritorial males. Furthermore, no significant correlations were found between circulating androgens, androgens and aggression, androgens and tubercles and breeding tubercles and aggression in common bream by male status. However, territorial fish displayed a significantly higher level of aggressive behaviour and breeding tubercles than nonterritorial fish. In natural environments, the occurrence of breeding tubercles during the spawning season could contribute to identifying the behavioural status of common bream males.
AB - In this study, relationships between circulating androgens, aggressive behaviour and breeding tubercles in males of common bream Abramis brama were examined in an aquarium environment. The breeding tubercles of fish were counted, the number of attacks was quantified by male status and circulating rates of testosterone and 11-ketotestosterone from blood plasma were analysed using radioimmunoassay procedures. The results revealed that no significant differences were found between circulating testosterone and 11-ketotestosterone in territorial and nonterritorial males. Furthermore, no significant correlations were found between circulating androgens, androgens and aggression, androgens and tubercles and breeding tubercles and aggression in common bream by male status. However, territorial fish displayed a significantly higher level of aggressive behaviour and breeding tubercles than nonterritorial fish. In natural environments, the occurrence of breeding tubercles during the spawning season could contribute to identifying the behavioural status of common bream males.
UR - http://www.scopus.com/inward/record.url?scp=79961008447&partnerID=8YFLogxK
U2 - 10.1007/s10695-010-9455-y
DO - 10.1007/s10695-010-9455-y
M3 - Article
AN - SCOPUS:79961008447
SN - 0920-1742
VL - 37
SP - 533
EP - 542
JO - Fish Physiology and Biochemistry
JF - Fish Physiology and Biochemistry
IS - 3
ER -