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New Development: High-Strength Stainless Steel as a Sustainable Material for Aquaculture

IntechOpen eBooks 2021 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Paul Gümpel, Urs Dornbierer, Arnulf Hörtnagl, Torsten Bogatzky

Summary

This paper presents development work on replacing conventional plastic aquaculture nets with high-strength stainless steel wire nets that have environmentally compatible antifouling properties. The goal is to eliminate plastic pollution and synthetic antifoulant chemicals from nearshore and offshore fish farming.

This paper presents the current state of development and selected technological challenges in the application of ecologically and economically sustainable nets for aquaculture based on ongoing development projects. These aim at the development of a new material system of high-strength stainless steel wires as net material with environmentally compatible antifouling properties for nearshore and offshore aquacultures. Current plastic netting materials will be replaced with high-strength stainless steel to provide a more environmentally friendly system that can withstand more severe mechanical stresses (waves, storms, tides and predators). A new antifouling strategy is expected to solve current challenges, such as ecological damage (e.g., due to pollution from copper-containing antifouling substances or microplastics), high maintenance costs (e.g., cleaning and repairs), and shorter service life. Approaches for the next development steps are presented based on previous experience as well as calculation models based on this experience.

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