Testing methods for improving pre-catch identification and survival rates of unwanted catches in purse-seine fisheries.


MINOUW partner & Lead scientist:

CCMAR (Centro de Ciências do Mar do Algarve), Jorge M.S. Gonçalves

Fishing method and species:

Purse-seine (16mm mesh size). Species targeted are Sardine, Atlantic Chub Mackerel and Horse Mackerel.

What activities did the MINOUW project carry out?
  • Testing different methods for improving pre-catch identification.
  • Testing different slipping methods in order to enhance survival rates of released fish.
  • Evaluating the survival rates of fish that escape when using these methods.
  • Using a participatory approach to promote this research in association with stakeholders; namely fisheries associations and fisheries administrations.
What outcomes were expected?
  • To minimise unwanted catches by incentivising the adoption of fishing practices and technologies to purse seining that reduce pre-harvest mortality and post-harvest discards, by:
  • Improving pre-catch identification.
  • Enhancing the survival of unwanted catches.
  • Promoting stakeholders’ participation.

The results of this survival assessment demonstrate that using a modified slipping technique during purse seine operations may significantly improve survival of slipped pelagic fish as well as decreasing scale loss of escapees.

For a full summary of results download the PDF here: (1kb)