A. Gimpel et al. 
Science of the Total Environment 878 (2023) 162902 
- 
3 
5 
Sn 
54 
> 
3 
n 
un 
Y 
250 
0 
an 
{000 
Weight (g) 
Fig. 6. Maturity stage of the individuals caught inside the Offshore Wind Farm during winter (OWF winter) and therefore spawning season. Females shown in pink and males 
in blue are plotted against their individual weight. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.) 
during both campaigns. The spatial distribution of their spawning sites sug- 
gests that the corridor of egg dispersal was not stable but varied in response 
‘o short-term changes in the prevailing hydrodynamic conditions. For that 
/eason, prior predictions of dispersal patterns of cod eggs within an envis- 
aged sampling period facilitates further the design of an adequate sampling 
strategy. This becomes more important in view of already short time slots 
during winter when weather conditions are more challenging. 
Our results do not allow conclusions on the migration pattern of cod 
‘rom the OWF in winter, but as described by other authors (Bergström 
et al., 2013; Degraer et al., 2020; Lindeboom et al., 2015; Reubens et al., 
Zumulative 
3088 count {(%) 
00 
A. 7°M 
n 
£{ 
4 
+ | 
4 
+ 
FR Fo Ps HF 
PR AEFFEFF 
PR 
POPP KFNF 
FAKE 
0 "KK 
” + 17 
F 
ii» 
al BO 
SA A°N + 
3 
® 
.*% 
ud. DAN: 
1° 
rear 
An 
Fr ao} 
Speed (m/s) 
Fig. 7. Dispersal pattern of hypothetical spawning events in the OWF (red polygon). The cumulative cross counts present the proportion of particles that have ever visited a 
LO x 10 km grid cell within a 480 h period (most of them may already have left the domain before that end of the simulation). The underlying data results from 32 (left) and 
26 (right) forward drift simulations, each comprising 1000 particles that were initiated on a daily basis (at 12 am) inside the OWF starting on 20 December 2018 and 3 
January 2020, respectively. Also shown are 4-day composites of residual current velocities (proportional sized and directional arrows) and directions for the periods 
17-20 January 2019 (left) and 25-28 January 2020 (right). In order to suppress regular tidal movements, 25-h (nearly one lunar day = 24.8 h) averages were calculated 
based on results from the hydrodynamic model BSHcmod (Dick and Kleine, 2007). The slower residual currents are responsible for all long-distance transport. (For 
interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)