— 136 — 
the remainder, (72), between 7 and 12 years old, the largest, from 100 to 115 cm. in length, 
having a minimum age*) of 9—15 years. 
An analysis of age which I made of a sample of 207 skrei taken on the 14th of April 
1913 at Rest, gave the following results. 
= [or] © 
(or) sH for) sH [er] x {or} —H {er} © © = 
10 (le) [Te] [an 2 Do (+) (we) Où Où rm me ri 
| | Al | | | | | 5 || total 
ive) =) 10 (= 10 1Q S tle) a 1Q > 
10 [re] We) iS = [00] co Où Où = Ss le) 
years... 10|29| 14] 10 63 
OU an TAR ce sco | RY) a PE MEY a 290 | coe aie oe ee oe. 18.0 
Ot a. Be soo | one |) Tus MEET à) 19) | KO | =, Fe mn lee 49.4 
NES SR nce | cen | CB) 2A 29) 9) TO eo ||) Se 
ON ee oe mee Nec nee 1.0 1.0 LS) 10 | 1.0 | 05 OD | oso loc 6.9 
NOS) ee PR Te SANS Fe AL BE gee ul | ee 0.5 0.5 | 14 2.9 
UBS) a ee A vee eee ae FR Fe ne eee ll Pacts 1:42, 7% ano |) IK) 2.4 
Size composition;\ | 
lo of total sample/| 1.0 8.8 | 20.9 | 22.0 | 23.0 | 9.7 3.9 3) 2.4 1.5 0.5 | 24 100.0 
Il | 
This sample contained no 6 year old fish, about 82 %, were between 8 and 10 years, 
most being 9 years old. Only a very few were over 11 years, these in all amounting to 
but 5.3 %. The following table shows the average sizes according to this analysis, the 
average figures from Damas’ table also being given. As will be seen, they agree very 
well together, at least when taking into consideration the paucity of the material. 
Average length 7 years 8 years 9 years 10 years 11 years 12 years 
Ace. to table above...... 63.9 67.1 73.6 80.6 84.5 107. 
» » Damas’ table .... 62.2 66.2 10389 80.1 
Of skrei, the only material available for determinations of age is from the years 
1906, 1907 and 1913. The analyses for 1906—7 have been made by Einar Korozp, 
those for 1913 by myself. The results will be found in Figs. 89 and 90. All things con- 
sidered, the samples agree very well; some difference is, however, apparent. In all the 
years, the great majority consisted of 8—10 year old fish; in 1906 however, the 8 year 
individuals were most numerous, in 1907 and 1913 the 9 year olds. These two last named 
years again differ one from the other, 1907 showing many 10 year fish. A comparison 
of the sizes for the three years exhibits very similar results; the skrei were in 1907 re- 
presented by the largest size groups. 
These samples do not however, give any complete view of the composition in regard 
to age and size of the skrei; as will be seen from the table on p. 92; there were in certain 
years, e. g. 1902, 1903 and 1905, considerably more small skrei than in the years here 
referred to. 
*) Damas points out (l. c. p. 115) that determination of age in the case of older specimens is 
a difficult matter, and that the figures given should be considered rather as too low than too high. 
