Solar‑powered LED nets cut turtle bycatch 63%
Get the Tech newsletter
Daily tech — startups, AI labs, chips, the launches that shape the next decade. Free.
- LED lights on gillnets in Baja California reduced turtle bycatch by 40 percent compared with non‑illuminated nets.
- Solar‑powered lights on gillnets in the Gulf of California lowered expected turtle bycatch by 63 percent while keeping target‑fish catch unchanged (Conservation Letters, Oct 2025).
- Turtle excluder devices have achieved 97 percent effectiveness in shrimp trawls after decades of refinement, saving both turtles and shrimp yields.
- Pingers on fishing gear cut harbor porpoise bycatch by 94 percent in Norwegian gillnet fisheries, though they have shown mixed results elsewhere.
- Plastic water bottles attached to gear have shown promise in reducing certain bycatch types, offering a low‑tech, practical mitigation option.
- Cheng Huang and colleagues reviewed 42 bycatch‑prevention measures across 121 case studies, concluding that while most reduce bycatch, no single solution works universally.
Why it matters: Fishermen gain higher net efficiency and less gear loss, while sea turtles, whales and dolphins see dramatically lower mortality, easing conservation pressures, reducing regulatory scrutiny, and potentially lowering compliance costs for fisheries worldwide. These gains could improve market access for sustainable seafood and bolster public support for fishing industries.
