oe 
years, samples were collected from different places along the coast, with the object of 
obtaining material for comparison of the growth of the cod in different parts of the coa- 
stal waters. It will here, however, suffice to mention the samples from and including 
Lofoten to the north. 
In all the samples taken, the fish were measured from snout to tip of tail, correctly 
to the nearest em. (75.5—76.4 = 76 cm). The sizes in each sample are arranged in groups 
for each 5 em., thus the lengths from 60—64 cm. form one group. In all the following 
tables and figures, the number of individuals falling to each group is stated as a percen- 
tage of the total number of fish in the sample. 
During the six mentioned years, the total number of skrei measured was 19,790; 
a quantity which should suffice to give some prospect of obtaining, by comparison of 
the measurements as a whole, a view of the limits of size of the skrei and the average 
or normal composition in this respect. A graphical representation has therefore been 
given (Fig. 55) of the numerical values of the different size groups (in percentages) in 
all the samples, taken together as one. (See also the following table, last line). 
Skrei. Percentage of 5-cm. groups. 
a st | | = alo 
Sen |) su eo st] es | So | es St ie Oo SNS SN al] a 
Blo | io | © MON MEN oo | oo | OM a | | | i | ni | = | Average 
TD | | | | | | | | | | | | | | = || Ionen 
A le le | © | w | © | w | © | w ls lw le | à | & | w 2 eng 
=) 10 le) [Te] co = = [0%] (oo) (op) = = En | = © 
| | | 
esse 0.1/0.7 |2.8 |10.9| 17.3} 21.2) 18.4|13:3) 7.0| 49) 1.6] 0.8) 1.2] .. a i 74.9 
WOR re 07 | 2:3 | 5.7 | 13:6) 19.1) 252)13.5)10.1) 48/26) 1.6) 0.7) 02) ..| | .. 71.8 
1905» colt hae P28 3:8) 44) VT 279177 | 12-7 | 4:4) 3:8) 1-9) MTS NN > 3% 185 
1906 ........ so || so | on || »= | Oe | 20.4) 41.2) 23.7) 7.3) 2.8) 1.2) 04) .. | .. ae ee 1812 
LOU ee ....0.05 0.05) 0.5 | 1.6 | 10.6 | 26.6 | 34.4) 18.0) 66) 11) 0.2|03| .. | .. Be 81.1 
IE; 280298 0.5/04 |1.2 | 5.3) 14.3) 21.5) 22.3]13.9) 7.0) 4.5) 39| 26] 16) 0.6/0.2 [02 | 77.6 
All years. . | 0.5 |1.2 | 2.3 | 5.8| 12.0 | 21.1 | 23:3 18.01 8.1| 4.2 | 1.9] 1.0| 0.6) 0.1 | 0.03 | 0.03 76.4 
I | | | | | | | 1 
It will be seen that the lowest limit size for skrei falls about the 50—54 group, the 
highest at 100—104 cm. Both smaller and larger (up to even 140 cm) fish are known; 
beyond the limits named, however no single 5 cm. group amounts to even 1 % of the 
whole. The following figures will give an idea of the distribution of the sizes. 
Under 65 em. Between 65 and 84cm. Over 85 cm. 
a, 74.4 % 16 % 
Nearly three quarters of the whole number of individuals are thus found to fall 
between the sizes of 65and 84 cm., one tenth being under 65 and one sixth over 84 cm. 
The highest single percentage is that of the 75—79 cm. group (23.3 %) and the average 
size for the whole number is 76.4 cm. 
Comparison of various skrei samples. 
A comparison of the different samples from one and the same year is of great import- 
ance as a test of the reliability of our method. We have a number of good samples from 
1913, measured partly by Mr. Oscar Sunn, partly by Capt. RONNEsTAD, and partly 
