Pacific and Atlantic Lepeophtheirus salmonis (Krøyer, 1838) are allopatric subspecies: Lepeophtheirus salmonis salmonis and L. salmonis oncorhynchi subspecies novo

Table 2 Biological characteristics for the F2 hybrid strains

Source	Replicate	Copepodids	F2 males	F2 females	Infection success (%)
LsPacAtl F1	1	1850	224	212	25
	2	1850	280	246	30
LsAtlPac F1	1	1000	93	81	17
	2	1000	158	124	28

The number of copepodids used to infect the hosts in the replicate tanks, and the numbers of males and females harvested upon termination of the F2 generation at the pre-adult stage are reported.

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