Paternal Mouthbrooding in the Black-Chinned Tilapia, Sarotherodon melanotheron (Pisces: Cichlidae): Changes in Gonadal Steroids and Potential for Vitellogenin Transfer to Larvae

Paternal Mouthbrooding in the Black-Chinned Tilapia, Sarotherodon melanotheron (Pisces: Cichlidae): Changes in Gonadal Steroids and Potential for Vitellogenin Transfer to Larvae

The black-chinned tilapia (Sarotherodon melanotheron) is a paternal mouthbrooder. Pairs of adult black-chinned tilapia were raised in freshwater and the males were sampled during the mouthbrooding cycle. Sampling also occurred 10 days after release of the free-swimming fry for comparison. During the...

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Veröffentlicht in:Hormones and behavior 2000-02, Vol.37 (1), p.40-48
Hauptverfasser: Kishida, Mitsuyo, Specker, Jennifer L.
Format: Artikel
Sprache:eng
Schlagworte:
Agnatha and pisces
Animal ethology
Animals
Biological and medical sciences
Enzyme-Linked Immunosorbent Assay
Estradiol - blood
Fundamental and applied biological sciences. Psychology
Gonadal Steroid Hormones - blood
Gonadal Steroid Hormones - physiology
Larva - physiology
Male
Mucus - metabolism
parental care
Paternal Behavior
provisioning offspring
Psychology. Psychoanalysis. Psychiatry
Radioimmunoassay
Sarotherodon melanotheron
steroid hormones
teleost
Testosterone - blood
Tilapia - physiology
Vertebrata
vitellogenin
Vitellogenins - metabolism
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Zusammenfassung:The black-chinned tilapia (Sarotherodon melanotheron) is a paternal mouthbrooder. Pairs of adult black-chinned tilapia were raised in freshwater and the males were sampled during the mouthbrooding cycle. Sampling also occurred 10 days after release of the free-swimming fry for comparison. During the first week of incubation of the eggs, total androgens and estradiol were low (
ISSN:0018-506X
1095-6867
DOI:10.1006/hbeh.1999.1556