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. 2022 Dec;101(6):1628-1633.
doi: 10.1111/jfb.15228. Epub 2022 Oct 10.

Effects of reliance on stored sperm on reproduction in the sailfin molly Poecilia latipinna

Shala Hankison  1 , Eric J Gangloff  1 , Breanna Fry  1 , Alena Arnold  1 , A J Lashway  1 , Jenell M Betts  1 , Sandra D Otap  1 , Katherine Walter  1 , Makenna Y Juergens  1 , Alax Crawford  1
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Effects of reliance on stored sperm on reproduction in the sailfin molly Poecilia latipinna

Shala Hankison et al. J Fish Biol. 2022 Dec.

Abstract

The impacts of relying on stored sperm were evaluated in the sailfin molly, Poecilia latipinna. Females reliant on stored sperm had fewer offspring compared to remated females, but offspring size and short-term growth rate did not differ. Thus, females may use stored sperm in cases such as previous mating with a preferred male, lack of access to mating opportunities during a reproductive cycle, or to maximize egg fertilization. Females do not compensate for producing fewer offspring however, by allocating more resources to offspring relative to their size or initial growth.

Keywords: Poeciliidae; reproduction; sperm storage.

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Figures

FIGURE 1
FIGURE 1
Brood sizes for mated and stored sperm broods (● = mean, ○ = outlier, — = median) in Poecilia latipinna. Box ends show the lower (Q1 – 25th percentile) and upper (Q3 – 75th percentile) quartiles, and whiskers show data range minimum and maximum (excluding the outlier)
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