Holding water steroid hormones in the African cichlid fish Pseudocrenilabrus multicolor victoriae

Highlights ► Steroid measures from fish holding water are a non-invasive alternate to plasma. ► We validate a non-invasive method of steroid measurement from cichlid holding water. ► Steroid levels do not differ between fish exposed to single or repeated measurements. ► Measures of sex steroids from...

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Veröffentlicht in:	General and comparative endocrinology 2012-12, Vol.179 (3), p.400-405
Hauptverfasser:	Friesen, Caitlin N, Chapman, Lauren J, Aubin-Horth, Nadia
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals blood blood sampling breeding Cichlidae Cichlids - blood Cichlids - physiology Cortisol Endocrinology & Metabolism Estradiol Estradiol - blood Female fish Freshwater Freshwater fish Gonadal Steroid Hormones - blood hormonal regulation Hormone validation Hydrocortisone - blood Male Non-invasive Pseudocrenilabrus Pseudocrenilabrus multicolor victoriae steroid hormones Testosterone Testosterone - blood
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Beschreibung
Zusammenfassung:	Highlights ► Steroid measures from fish holding water are a non-invasive alternate to plasma. ► We validate a non-invasive method of steroid measurement from cichlid holding water. ► Steroid levels do not differ between fish exposed to single or repeated measurements. ► Measures of sex steroids from plasma and water samples are positively related. ► Sex steroid levels in holding water varied with reproductive state in female fish.
ISSN:	0016-6480 1095-6840
DOI:	10.1016/j.ygcen.2012.07.031