Mehr als ein Drittel der Tiere im Test-Tiefseebergbau verloren – Es wurde festgestellt, dass Maschinen, die Mineralien in der Tiefsee abbauen, das Leben auf dem Meeresboden erheblich schädigen, sagen Wissenschaftler, die die größte Studie dieser Art durchführen.

Abstract
In 2022 a large-scale test of a commercial deep-sea mining machine was undertaken on the abyssal plain of the eastern Pacific Ocean at a depth of 4,280 m, recovering over 3,000 t of polymetallic nodules.

Here, using a quantitative species-level sediment-dwelling macrofaunal dataset, we investigated spatio-temporal variation in faunal abundance and biodiversity for 2 years before and 2 months after test mining. This allowed for the separation of direct mining impacts from natural background variation, which we found to be significant over the 2-year sampling period.

Macrofaunal density decreased by 37% directly within the mining tracks, alongside a 32% reduction in species richness, and significantly increased community multivariate dispersion. While species richness and diversity indices within the tracks were reduced compared with controls, diversity was not impacted when measured by sample-size independent measures of accumulation.

We found no evidence for change in faunal abundance in an area affected by sediment plumes from the test mining; however, species dominance relationships were altered in these communities reducing their overall biodiversity. These results provide critical data on the effective design of abyssal baseline and impact surveys and highlight the value of integrated species-level taxonomic work in assessing the risks of biodiversity loss.

https://www.nature.com/articles/s41559-025-02911-4

Wow, I would’ve never thought this would’ve been the outcome.
It’s almost like everything we get our needy and greedy little fingers on cause problems for the ecosystem.

Doesn’t the act of investigating cause substantial harm to deep sea life? Doesn’t light cause permanent blindness? Why are putting a hat on a hat here? Its surely enough to infer that the invasive nature of the drilling would cause substantial loss of both life and habitat.