Are circle hooks effective in reducing incidental captures of loggerhead sea turtles in a Mediterranean longline fishery?

Authors: 
Piovano, S., Swimmer, Y., Giacoma, C.
Year: 
2009
Journal/Publisher Name: 
Aquatic Conservation: Marine and Freshwater Ecosystems
Volume/Issue #: 
19
Page #s: 
779-785
Contact information: 
susanna.piovano@unito.it
The use of circle hooks (16/0) instead of J hooks (size 2) on pelagic longline gear, reduced the incidental capture of immature loggerhead sea turtles and did not affect the catch rates or fish size of the target species. There was also a significant difference in hook location between the two hooks, with more J hooks being swallowed.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
Strait of Sicily Hooks-and-Lines Circle hooks Sea Turtles Circle hooks reduced the incidental capture of immature sea turtles Swordfish Circle hooks did not affect catch rates or the size of the targeted catch In the wild