Íslenskar landbúnaðarrannsóknir - 01.09.1978, Blaðsíða 135
GROWTH RATES OF TROUT AND CHAR 133
6 8 10 12 M 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
LENGTH (cm)
Fig. 4. Length distributions of char caught in East Fridmundarvatn and of aged char.
the small fish. Eurycercus feeds on the leaves and stems throughout the entire
Mynophyllum periphyton that is found on water column.
TABLE 5.
Age analysis of char in East Fridmundarvatn in 1975.
Males Females Mean length
Age Number examined Mean length Number examined Mean length maies, females combined growth rate
2+ 21 15,7 7 13,4
3+ 6 19,1 6 19,6 19,4 0,59
4+ 9 23,3 3 23,8 23,6 0,04
5+ 2 23,5 4 24,3 23,9 0,31
6+ 19 26,3 13 26,7 26,5 0,18
7+ 9 28,3 8 27,9 28,1 0,14
8+ 20 29,7 23 29,2 29,4 0,14
9+ 10 30,7 17 31,0 30,8 0,12
10+ 8 32,1 11 32,2 32,1 0,13
11 + 8 32,8 5 34,2 33,5 0,10
12+ 7 35,1 9 34,1 34,6 0,03
13+ 4 35,1 5 35,0 35,0
14+ 3 34,7 6 35,3 34,9
17*