Table 3.

Estimating lifetime success (eyed-egg to green-egg) of each group

Row	Known or estimated quantity	All groups	Localfemale ×  Localmale	Localfemale ×  Foreignmale	Foreignfemale ×  Localmale	Foreignfemale ×  Foreignmale
A	Number of returning adult females, Nj	67	29	11	20	7
B	Mean mass (kg) of returning adult females	2.42	2.40	2.88	2.29	2.20
C	Total mass of returning adult females, kg (=A × B)	162.14	69.60	31.68	45.80	15.40
D	Mass specific fecundity, (eggs/kg)	1500	1500	1500	1500	1500
E	Total number of green-eggs produced by returning adult females (=C × D)	243 210	104 400	47 520	68 700	23 100
F	Estimated number of female ranched smolts*	4558	1181	1209	1164	1004
G	Estimated number of green-eggs per female smolt, given it survives to returning adult (=E/F)	53.36	88.42	39.32	59.03	23.00
H	Number of wild female smolts at experiment-trap†	25	7	5.5	4.5	8
I	Estimated number of wild female smolts at sea-entry traps, assuming parr emigrants survived‡	71.5	18.5	14.5	12.5	26.0
J	Estimated number of green-eggs for all wild smolts, assuming parr emigrants do not survive (=G × H)	1334	619	216	266	184
K	Estimated number of green-eggs for all wild smolts, assuming parr emigrants survive (=G × I)	3816	1636	570	738	598
L	Initial number of eyed-eggs planted out	53 486	13 640	13 312	13 280	13 254
M	Absolute lifetime success, assuming parr emigrants do not survive (J/L)	0.0249	0.0454	0.0162	0.0200	0.0139
N	Absolute lifetime success, assuming parr emigrants survive (K/L)	0.0713	0.1199	0.0428	0.0556	0.0451
O	Relative lifetime success, assuming parr emigrants do not survive		1.00	0.36	0.44	0.31
P	Relative lifetime success, assuming parr emigrants survive		1.00	0.36	0.46	0.38

^*Estimated based on initial egg numbers, assuming equal egg-smolt survival and equal sex ratio.

^†Actual number of smolts × 0.5, assuming an equal sex ratio.

^‡Parr emigrants assumed to survive at same rate as parr belonging to same group that did not migrate from the experiment-river.