Baseline study Fish, fry and commercial fishery Nysted Offshore ...
Baseline study Fish, fry and commercial fishery Nysted Offshore ...
Baseline study Fish, fry and commercial fishery Nysted Offshore ...
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Bio/consult as Page 31<br />
Number<br />
Number<br />
6<br />
4<br />
2<br />
0<br />
6<br />
4<br />
2<br />
Brisling<br />
Wind farm area Reference area<br />
May May<br />
June June<br />
0<br />
0 5 10 15 20 25<br />
Total length (cm)<br />
SEAS. <strong>Baseline</strong> <strong>study</strong> – <strong>Fish</strong>, <strong>fry</strong> <strong>and</strong> <strong>commercial</strong> <strong>fishery</strong> Dok. nr. 2148-03-001-rev3 2P.doc<br />
Gill net<br />
0 5 10 15 20 25<br />
Total length (cm)<br />
Figure 3.8.4. Length distribution of brisling in the wind farm area <strong>and</strong> reference area in May <strong>and</strong><br />
June.<br />
Most of the brislings were regenerating their gonads. A single individual had mature<br />
genitals <strong>and</strong> a few were in the intermediary stage, which correlates with a diffuse<br />
spawning season for this species.<br />
Gonadeindeks N mean<br />
May Juv. Juvenile gonads<br />
June<br />
Male<br />
Female<br />
Juv.<br />
Male<br />
Female<br />
sexual diff.<br />
intermediary<br />
Mature<br />
Juvenile gonads<br />
sexual diff.<br />
sexual diff.<br />
Længde<br />
(cm)<br />
K. F.<br />
mean<br />
Wind farm area<br />
Gonadevægt (g)<br />
mean stdv<br />
1 13,6 ,64 ,1 ,6<br />
% Gonadevægt<br />
mean stdv<br />
1 10,6 ,58 ,0 ,0<br />
2 15,3 ,48 2,3 ,3 16,8 12,33 2 15,3 ,56 1,4 1,0 6,7 4,00<br />
6 10,6 ,63 ,1 ,0 1,3 ,15<br />
Længde<br />
(cm)<br />
N mean<br />
1 11,3 ,85 1,6 13,0<br />
2 9,3 1,24 ,0 ,0 ,0 ,00<br />
3 9,5 ,61 ,1 ,0 2,0 ,79 4 13,3 ,66 ,1 ,1 ,9 ,45<br />
K. F.<br />
mean<br />
Reference area<br />
Gonadevægt (g)<br />
mean stdv<br />
% Gonadevægt<br />
mean stdv<br />
Table 3.8.4. Average of length, condition factor, weight <strong>and</strong> percentage of gonads as a function of<br />
the gonad index for brisling.
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