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The effects of induced masculinization on reproductive and aggressive behaviors of the female mosquitofish,Gambusia affinis affinis by Mary Jane Krotzer is a Earth and Planetary Sciences article available to read on EtoBox.

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## Synopsis Female Gambusia affinis affinis were masculinized with the degraded products of 65% stigmastanol-30% B-sitosterol, a phytosterol. The masculinized females were paired with non-treated males, non-treated females, and other masculinized females. The pairs were analyzed for reproductive and aggressive behaviors exhibited. The behavioral patterns of these pairs were compared statistically to the behavior patterns of the following non-treated pairs: male with male, female with female, and male with female. The masculinized females behaved like males in that they followed, swung, and thrust their gonopodia at non-treated females and larger masculinized females. However, the male-like behavior of the masculinized females was not as intense as that of normal males. Also, the effect of masculinization on the behavior of the treated female was context-dependent as seen when placed with a male or a smaller masculinized female. Under these conditions the masculinized females behaved like typical females and exhibited no masculinized behaviors. The effects of anal spots and size differences are discussed as possible explanations for the variability in behaviors exhibited. The mascul

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Author

Mary Jane Krotzer

Publisher

Springer; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0378-1909)

Published

1990

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)