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 59<br />
3.9.4. Individual selected species<br />
In the following sections concerning the individual selected species, figures showing<br />
thematic maps of CPUE number <strong>and</strong> CPUE weight are for the sake of clearness<br />
expressed as CPUE values with an effort of one of each of the four transects in the wind<br />
farm area (from west transect 1 to 4) <strong>and</strong> reference area (from west transect 5 to 8),<br />
respectively. Be aware of that CPUE values used in statistics are representing an effort<br />
of each of the 24 stations.<br />
3.9.4.1 Fifteen-spined stickleback (Spinachia spinachia)<br />
The CPUE values for fifteen-spined sticklebacks at transect 5 tended to be lower, in<br />
comparison to the easterly transects.<br />
q<br />
Cabletrace<br />
Sampling stations in the reference area<br />
Sampling stations in the wind farm area<br />
Wind mills<br />
13<br />
13<br />
14<br />
14<br />
15 15<br />
15<br />
16<br />
16<br />
17<br />
17<br />
18<br />
18<br />
q q<br />
q q q<br />
q q<br />
q<br />
q q<br />
q<br />
q q<br />
q<br />
q q<br />
q<br />
q q<br />
q<br />
q q<br />
q q<br />
qq<br />
q q<br />
q q<br />
q11<br />
q q<br />
q q<br />
q q q 7<br />
q q q44<br />
10<br />
10 10<br />
q<br />
q q q q<br />
q22<br />
q q<br />
q<br />
q<br />
q q5<br />
q q 8<br />
q q q<br />
q q 11 11 11 11<br />
11 11<br />
q q q<br />
q q<br />
q q33<br />
q<br />
q q<br />
q6<br />
q9<br />
12 12 12<br />
12<br />
Fifteen-spined stickleback<br />
CPUE number<br />
2<br />
May<br />
June<br />
September<br />
October<br />
November<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 />
19 19<br />
19<br />
20 20<br />
20<br />
21 21<br />
21<br />
CPUE weight<br />
14<br />
May<br />
June<br />
September<br />
October<br />
November<br />
Figure 3.9.1. Thematic map showing CPUE number <strong>and</strong> CPUE weight of Fifteen-spined stickleback<br />
grouped in eight transects, four within the wind farm area <strong>and</strong> four within the reference<br />
area.<br />
According to their life history traits, the individuals caught in the Spring sampling have<br />
over-wintered, <strong>and</strong> during the period of sampling the males are assumed to be guarding<br />
newly spawned eggs, whereas the females die shortly after spawning.<br />
The abundance of fifteen-spined sticklebacks is higher in September due to the presence<br />
of a new cohort originating from the spring spawning. In Figure 3.9.2, it can be seen<br />
that the abundance of the population declines towards the onset of winter.<br />
22 22<br />
22<br />
23<br />
23<br />
24<br />
24
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