Effectiveness of the Nordmore grate in the Gulf of Maine Northern shrimp fishery

A Nordmore sorting grid, which has been required in the Gulf of Maine Northern shrimp (Pandalus borealis) trawl fishery since 1992, was found to decrease bycatch of 8 groundfish species when observed tows before and after the grate requirement were compared. Catch rates of shrimp increased possibly due to higher catch rates of large shrimp.
Field Studies:

Location	Fishing gear	Reduction technique	Bycatch species	Effect on bycatch species	Catch	Effect on target catch	Type
Gulf of Maine	Trawls	Sorting grid	Bony Fishes	Reduced bycatch	shrimp	Increased catch of large shrimp	In the wild