Abstract
The sorting grid was introduced in the Barents Sea gadoid fishery in 1997. During an experiment west of Bear Island in summer 2001, the total selectivity of a commercial cod trawl with a single grid mounted (grid selectivity×codend selectivity) was compared with that of the same trawl without a grid (codend selectivity). This is the first comparison of the selectivity of these gears during a single experiment. The results showed a surprisingly similar selection range for grid and codend selectivity: around 10 cm. With a grid mounted, the 50% retention length of the trawl rose by about 4 cm. The results demonstrate that catch rate or catch size may influence both 50% retention length and selection range.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
