Non‑entangling fish aggregating devices (NEFADs)
Fish aggregating devices that are constructed with no netting material, to minimize ghost fishing (entanglement of fauna, primarily sharks and turtles). For a FAD to be completely non‑entangling, it must use no netting materials either in the surface structure (raft) or the submerged structure. NEFADs using netting but built to minimize entanglement, such as using netting tied in bundles or using small size netting (< 7 cm stretched mesh), are called “lower entanglement risk FADs” (LERFADs).
https://www.iss-foundation.org/fishery-goals-and-resources/our-best-practices-resources/non-entangling-and-biodegradable-fads-guide/