24 
more rapidly grown herrings joining spawning shoals at an earlier 
age than those of slower growth, and is taken as indicating that 
the fish of these ages have spent their early years on different 
feeding grounds. The small number of older fish in the October 
sample makes it impossible to offer any definite statement with 
regard to them, but they approach the growth of the older fish 
in the June sample. 
In the Report for last year, page 87, data were given which 
pointed to the full fish of November returning to Yarmouth waters 
as spents in the spring fishery of the following year. The fish 
with five winter rings in the June sample of 1921 have a growth 
very like that of the fish of the same age in the March sample. 
This, together with the maturity data, point to the herrings staying 
some considerable time in Yarmouth waters when recovering from 
spawning. The growth data are as follows :— 
FIRST YEAR GROWTH. 
NUMBER AT CENTIMETRES. 
j Winter 6 mt 
Sample. ee 7 8 9, 40: 21) 42 13. fa aipeniagan 
VINGS, 
iAfAa20. 4 1 6 UF 28) 810m <5) 5 
TI oS Se Cy I Ge | 2 Se 
GUN ee cy 5 Bear ng Pe M5 Mah 3 Nees neem 
SHCOND YEAR GROWTH 
NUMBER AT CENTIMETRES. 
Sample. Winter 14 15. 46) 17 18519 20 21 Zameen 
Rings. 
We SON Whe: 4 9 9 14 15) 16. fee ae 
015) tees ay 5 2 41. 19 9 i i)” SO Siem 
CoN eaeke ee. 5 — 6-8 ie 7 sy 7 2 ees 
THIRD YEAR GROWTH. 
NUMEPER Al CENTIMETRES, 
Sample Winter 19 20 21 22 23 24 25 ‘Total, 
Rings. 
17/11/20 4 = 6» ar oh aise 
Gist ke” tee 5 L ==) AO 7) Glory apeetaee 
7/6/21 5 = "3 "67 0" een ees 
FOURTH YEAR GROWTH. 
NUMBER AT CENTIMETRES 
Winter 
Sample. 22 23 24 25 26 27 28 Total. 
unple Ringe, 3) el 5 26 7 8 Total 
Lala DINeee yz AN 2 Iie) 8.\027 282) ONE aetna 
ORT Be et 24g 10 peer 
NIB/2t aes fae, OB Sh 120 iG Rees 

