Optimizing mesh size with escape gaps in a dual-species portunid-trap fishery

Southeastern Australia


Target catch: 

giant mud crabs (Scylla serrata), blue swimmer crabs (Portunus armatus)

Study Type: 

Field study in the wild

Effect on target catch: 

No effect

Effect on bycatch species: 

91-mm traps retained significantly fewer (by 42%) undersized P. armatus and A. australis. In the second experiment, fewer undersized S. serrata, P. armatus, and A. australis were retained in all larger meshed traps, and in all traps with escape gaps.

Bycatch species: 

Fishing Gear: 

Reduction technique: