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Paternity estimated by isozyme variation in the marine sculpinAlcichthys alcicornis (Pisces: Cottidae) exhibiting copulation and paternal care

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Abstract

InAlcichthys alcicornis, a sculpin copulating in conjunction with paternal care, the genetic relation between males and egg masses they guard was investigated using polymorphism of an isozyme. At least 3 out of the 10 egg masses investigated were not genetically related with the guarding males. In these 3 cases, the female parents must have copulated with males other than the guarding males. It was hypothesized that males take care of non-kin eggs for the opportunity to fertilize the next clutch females will produce.

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Munehara, H., Okamoto, H. & Shimazaki, K. Paternity estimated by isozyme variation in the marine sculpinAlcichthys alcicornis (Pisces: Cottidae) exhibiting copulation and paternal care. J. Ethol. 8, 21–24 (1990). https://doi.org/10.1007/BF02350125

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  • DOI: https://doi.org/10.1007/BF02350125

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