sentences:  Harmless and of no commercial value, the roughtail catshark is too small to be caught on most types of fishing gear but is taken incidentally in shrimp trawls.Shark expert Stewart Springer reported in 1966 that it was frequently caught in shrimp trawls along the entire coast of Florida.The impact of trawl fisheries on this species in United States waters is unknown; its depth and spawning habitat preferences may offer a degree of protection from fishing pressure.