Table 4: Egg-to-pre-smolt survival of age-0 nerkids for 2005-13. Survival estimates were based on the differences between numbers of Sockeye eggs produced by adult brood year and the associated number of age-0 nerkids estimated to still be present at the end of the summer to fall growing season i.e. October to winter of brood year + 1. The average density recorded during October to winter has been designated as the “pre-smolt density” estimate.

Brood year	In-lake year	WILD eggs produced by Osoyoos stock	Eggs taken to hatchery	WILD age-0 presmolt numbers per lake	STOCKED age-0 sockeye pre-smolt numbers per lake	STOCKED egg to pre-smolt survival (%)	WILD egg to Pre-smolt survival (%)
2004	2005	55,415,684	0	1,771,947	-	-	3.20
2005	2006	41,948,324	0	1,833,357	-	-	4.37
2006	2007	30,561,209	0	2,050,636	-	-	6.71
2007	2008	17,960,771	0	874,135	-	-	4.87
2008	2009	177,986,744	0	6,998,054	-	-	3.93
2009	2010	85,151,316	567,810	638,214	83,566	14.72	0.75
2010	2011	315,471,237	0	4,310,465	-	-	1.37
2011	2012	109,204,863	1,051,500	2,464,053	243,513	23.16	2.26
2012	2013	135,698,468	1,115,460	3,614,442	62,511	5.60	2.66
-	-	-	-	-	Average	14.49	3.35