That’s a much reduced statement. Construction noise is indeed a massive disturbance, which is why there’s a lot of efforts on mitigation it. Once the plant is running, however, it has been observed to work as an artificial reef increasing the local populations. To increase the effect there’s some work on adding boulders in between the monopiles. Another reason is that power boats are (depends on country) often forbidden to enter which actually reduces the noise disturbance within the area. There’s also effects on some species (lower trophic levels) due to the local reduction in wind speed in the wake which modifies the amount of mixing in the surface. That is, however, an active field of research. Long story short: fields of wind power plants are depending on the current life stage a disturbance but have in some sites been observed to be the opposite once operating. A conclusion to only build them on land could hardly be drawn at this time.