Castration affects reproductive but not aggressive behavior in a cichlid fish

Castration affects reproductive but not aggressive behavior in a cichlid fish

Highlights • Castration lowers male androgens levels at 4 and 8 days post-castration. • Castration abolishes the expression of nest building, courtship and nuptial coloration. • However, castration has no effect on the expression of aggressive behavior. • Thus, aggressive behavior is decoupled from...

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Veröffentlicht in:General and comparative endocrinology 2014-10, Vol.207, p.34-40
Hauptverfasser: Almeida, Olinda, Canário, Adelino V.M, Oliveira, Rui F
Format: Artikel
Sprache:eng
Schlagworte:
Aggression
Androgens
Androgens - metabolism
Animals
Behavior, Animal
Castration
Cichlidae
Courtship
Endocrinology & Metabolism
Female
Gonadal hormones
Male
Oreochromis mossambicus
Reproduction - physiology
Social Environment
Territoriality
Tilapia
Tilapia - physiology
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Beschreibung
Zusammenfassung:Highlights • Castration lowers male androgens levels at 4 and 8 days post-castration. • Castration abolishes the expression of nest building, courtship and nuptial coloration. • However, castration has no effect on the expression of aggressive behavior. • Thus, aggressive behavior is decoupled from reproductive behavior and from androgens.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2014.03.018