Baseline study Fish, fry and commercial fishery Nysted Offshore ...

Bio/consult as Page 43
Number
Number
4
3
2
1
4
3
2
1
Turbot
Wind farm area Reference area
May May
June June
0 10 20 30 40 50
Total length (cm)
Gill net
Fyke net
0 10 20 30 40 50
Total length (cm)
Figure 3.8.16. Length distribution of turbot in the wind farm area and reference area in May and June.
According to the examination of the gonads of the turbots, most of them were found to
be in the intermediary stage, though the biomass of the gonads was relatively large.
Længde
(cm)
K. F.
Wind farm area
Gonadevægt (g)
% Gonadevægt
Gonadeindeks N mean mean mean stdv mean stdv N mean mean mean stdv mean stdv
May Male sexual diff. 13 19,3 1,50 2,1 ,8 2,0 ,82
intermediary 2 21,1 1,67 8,0 5,2 4,7 ,86 3 24,5 1,45 5,9 3,6 2,7 ,46
Female intermediary 1 20,2 1,58 4,4 3,4 1 33,0 1,94 29,1 4,2
June Male sexual diff. 1 15,4 1,60 ,4 ,7 4 20,9 1,52 1,2 ,8 ,8 ,13
intermediary
2 26,8 1,54 3,6 ,2 1,2 ,07
Female intermediary
1 35,5 1,77 79,7 10,0
SEAS. Baseline study – Fish, fry and commercial fishery Dok. nr. 2148-03-001-rev3 2P.doc
Længde
(cm)
K. F.
Reference area
Gonadevægt (g)
% Gonadevægt
Table 3.8.10. Average of length, condition factor, weight and percentage of gonads as a function of
the gonad index for Turbot.