An attempt at crossbreeding Atlantic salmon and pink salmon (preliminary report)
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TL;DR
It is concluded that crosses of Atlantic salmon and pink salmon could not occur in nature.
Abstract
Abstract The results of artificial crossbreeding of Salmo salar and Oncorhynchus gorbuscha of the Kola river (Murmansk region) are discussed. Observations are presented on developmental characteristics of the hybrid and the Atlantic salmon parent, as well as karyological data on hybrid and control embryos. Crosses of Atlantic salmon and pink salmon of the Kola river produced non-viable embryos with various morphological anomalies. The diploid chromotype of the hybrid ranged from 52 to 56. The number of two-armed chromosomes in the karyotype of the hybrid embryos was greater than that in the karyotype of Atlantic salmon. It is concluded that crosses of Atlantic salmon and pink salmon could not occur in nature.