An improved method for studying survival of fish that escape through meshes of trawl codends

The objective of this study is to develop and test a practical field method for measuring survival of fish that pass through trawl cod-end meshes under commercial fishing conditions. This method permits the collection of escaping fish during any moment of a haul. Hence, survival can be assessed for short and long tows, small and large catch quantities, and for any desired depth using this technique.