Reproductive Isolation between a Hybrid Sunfish and Its Parental Species
- 1 October 1987
- journal article
- research article
- Published by Oxford University Press (OUP) in The Progressive Fish-Culturist
- Vol. 49 (4) , 296-298
- https://doi.org/10.1577/1548-8640(1987)49<296:ribahs>2.0.co;2
Abstract
Attempts to backcross F1 male bluegill (Lepomis macrochirus) x green sunfish (Lepomis cyanellus) hybrids with females of each parental species were unsuccessful both in ponds and in the laboratory. In laboratory experiments, fertilization was accomplished but embryos failed to survive longer than 36 h. In ponds, nesting and courting activity were observed but successful reproduction did not occur. Additionally, 1,874 of 1,983 F1 hybrids examined (94.5%) were males.This publication has 0 references indexed in Scilit: