Non-Entangling & Biodegradable FADs Guide

ISSF’s Non-Entangling & Biodegradable FADs guide for tuna fishers, Regional Fisheries Management Organizations (RFMOs), governments, and vessel owners shows research-based best practices in Fish Aggregating Device (FAD) design — both to avoid bycatch and reduce marine pollution.

Four tuna RFMOs already require fleets in their regions that fish with FADs to use only non-entangling designs. Some RFMOs additionally encourage fleets to build those FADs with biodegradable materials. The guide, first published in 2012 and revised in 2019 to include the biodegradable recommendation, is available in several languages.

ISSF 2012-14: Chair’s Report of the ISSF Tuna-Dolphin Workshop. California, October 2012

Date Added: August 8, 2016
Authors: Dr. Victor Restrepo
Downloaded: 518 times
Tags: Bycatch Mitigation
Language: English
Featured: False
Report Type: Workshop Report


The Workshop (see Appendix 1 for list of invited participants) was held to review the current state of scientific knowledge regarding impact of the dolphin-associated tuna purse seine fishery in the Eastern Pacific Ocean (EPO). Direct mortality of dolphins in the fishery has been substantially reduced and is estimated well below that prescribed as permitting rebuilding of the dolphin stocks of concern. However, hypothesized indirect mortality or reduced reproductive success due to stress induced by chase and capture could be preventing rebuilding at rates hypothesized as the expected ones.

This report was prepared by the author as meeting Chair. While it does not necessarily represent a consensus view shared by all participants, the Chair tried to do his best to represent all views in a balanced way. The report benefitted greatly from comments on an earlier draft made by meeting participants. Participants were given an opportunity to submit dissenting opinions from the final report (one was received, see Appendix 5).