Early experimental work with a device equipped with several sensors to assist in characterizing species-specific line behavior of fish caught on longlines, with the goal of detecting species in real-time and releasing bycatch species automatically and immediately after capture. Quick release would reduce the risk of negative physiological and behavioral impacts and depredation, and thus lowering post-release mortality.
The image below is from Nieblas et al (2023):
References
Nieblas AE, Rouyer T, Bonhommeau S, et al (2023) SMARTSNAP: A new device to aid in the reduction of bycatch mortality in longline fisheries. In: IOTC - 19th Working Party on Ecosystems & Bycatch. IOTC-WPEB19-2023-22, La Saline Les Bains, Reunion, France