There needs to be a correction and clarification at least for reproduction of mosquito fish aka Gambusia. Gambusia do not lay eggs so the eggs cannot pass through the digestive tract of any bird or animal.
“Mosquitofish is a small live-bearing fish. After a gestational period of 21 to 28 days, the young are born alive at a size of approximately eight to nine mm total length (Krumholz 1948). Larger females produce more offspring (Krumholz 1948). Brood sizes of one to 315 young have been reported (Barney and Anson 1921, Moyle 1976). Females annually have four to five broods (Krumholz 1948).”

”They feed primarily on zooplankton and invertebrate prey at the top of the water column. Adults are known to feed on their young opportunistically (Benoit et al. 2000). This species is also well known for its high feeding capacity. Chips (2004) observed maximum consumption rates of 42–167% of their body weight per day.”
Advanced reading.
https://www.fws.gov/fisheries/ANS/erss/highrisk/Gambusia-affinis-ERSS-FINAL.pdf

Last edited by Bill Cody; 12/20/19 08:27 PM.

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