Magnetic fields generated by submarine power cables have a negligible effect on the swimming behavior of Atlantic lumpfish (Cyclopterus lumpus) juveniles
Authors not listed · 2023
Submarine cable magnetic fields caused minor swimming changes in lumpfish but didn't affect migration behaviors.
Plain English Summary
Researchers tested whether juvenile Atlantic lumpfish respond to magnetic fields from submarine power cables by exposing them to 230 µT fields in laboratory tanks. The fish showed a 16% reduction in swimming speed but no changes in activity levels or movement patterns. The study concludes this minor effect is unlikely to impact fish migration or navigation.
Why This Matters
This study adds important nuance to our understanding of EMF effects on marine life. While the researchers found a measurable behavioral change in lumpfish exposed to submarine cable magnetic fields, they appropriately contextualized this as a minor effect unlikely to cause ecological harm. The 230 µT exposure level is actually quite high compared to typical human EMF exposures - for perspective, this is roughly 2,300 times stronger than Earth's natural magnetic field and hundreds of times higher than fields from household appliances. What's significant here is that even at these elevated levels, the effects were subtle and didn't disrupt fundamental behaviors like feeding or navigation. This research demonstrates the importance of studying real-world EMF scenarios rather than making broad assumptions about biological effects.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{magnetic_fields_generated_by_submarine_power_cables_have_a_negligible_effect_on_the_swimming_behavior_of_atlantic_lumpfish_cyclopterus_lumpus_juveniles_ce4362,
author = {Unknown},
title = {Magnetic fields generated by submarine power cables have a negligible effect on the swimming behavior of Atlantic lumpfish (Cyclopterus lumpus) juveniles},
year = {2023},
doi = {10.7717/peerj.14745},
}