Bioplastic fishing nets as a sustainable alternative against ghost fishing: Results from the year-long testing among artisanal fishermen for operational effectiveness and social acceptance.

Abstract

This study investigated the operational effectiveness and social acceptance of bioplastic gillnets made from a biobased polyester blend used to develop a monofilament 0.33 mm in diameter, with linear density of 108 tex, tenacity of 24.4 cN/tex and breaking force of 3.12 daN. The bioplastic gillnets were tested on 10 small-scale, in-shore vessels operating in the Mediterranean for 12 months. Findings demonstrate reduced effectiveness of the bioplastic nets compared to conventional nets, with reduced strength and increased stiffness influencing catch rates. Economic concerns and performance issues are critical factors affecting the acceptance of bioplastic nets by fishermen. The study highlights the need for continued research and development to improve the mechanical properties and performance of biobased fishing gear, and for the adoption of policy measures to incentivize the uptake and use of sustainable alternatives that can mitigate the impacts of lost or discarded fishing gear on marine ecosystems.