Course content

Catching principles for Danish seines, ourse seines, bottom trawls and pelagiv trawls. Influence of reaction behaviour. Size and specie selectivity. Gear design and construction. Towing and handling forces. Materials. Maintenance. Operation and gear handling. Catch handling.

Learning outcome

Understanding of catching principles, catching efficiency and selectivity properties of the various active fishing gears. Gain knowledge and experience of design and resistance analyces.

Learning methods and activities

Lectures, exercises, project work, excursions, model development and model tests (optional).

Recommended previous knowledge

Subject TMR4135 Fishing Vessel and Workboat Design, TMR16 Fishing Gear and Ongrowing Plant Technology.

Required previous knowledge

Subject TMR4135 Fishing Vessel and Workboat Design, TMR16 Fishing Gear and Ongrowing Plant Technology.

Course materials

Ludvig Karlsen: Redskapslære og fangstteknikk (in Norwegian).
Ludvig Karlsen: Redskapsteknologi i fiske (in Norwegian).
E. Dahle og T. Gustafson: TRÅL- Konstruksjon og hydronynamiske forhold (in Norwegian).
A.L. Fridman: Calculations for fishing gear design.
Lecture notes.

Credit reductions