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Biodegradable fishing nets

New project launched by a team of ‘ghostbusters’ hoping to tackle a marine menace
Biodegradable fishing nets

The University of Portsmouth is aiming to tackle one of the most dangerous types of marine pollution blighting the world’s oceans: ‘ghost fishing’.

Ghost fishing refers to fishing gear, such as nets or traps and pots, that has been lost or dumped at sea. Much of this gear is made of plastic and highly durable synthetic fibres, which take hundreds of years to break down.

This gear damages marine habitats and entangles and kills fish, marine mammals and seabirds, long after it has been left behind – hence the term ‘ghost fishing’. It is also a danger to boats as it catches in vessel propellers.

It is estimated that 25% of marine litter is from the fishing industry in the form of nets.

Nets with a controlled lifespan

A new project called Innovative Fishing Gear for Oceans (INdIGO) has been launched, with the aim of developing a completely biodegradable fishing net with a controlled lifespan.

The nets will biodegrade into natural materials within two years, not into smaller bits of plastic causing further pollution.

INdIGO is a 4.2m euro project from the EU’s Interreg programme, funded by the European Regional Development Fund. It involves the Universities of Portsmouth and Plymouth in the UK and the University of Brittany in France, plus three research centres and five private organisations from the UK and France.

Dr Ben Drakeford, Senior Lecturer in Economics and Finance at the University of Portsmouth, is the University’s lead on the project. He will conduct an economic analysis of the various net prototypes produced by the project partners.

‘Abandoned, discarded or lost fishing gear is having a significant and growing impact on marine life. While the environmental implications of marine litter are well documented, the economic impacts are largely unknown, although estimated to be large. We will utilise economic and socioeconomic analysis to support the uptake of biodegradable nets that can make a significant contribution to tackling the world’s marine litter problem.’

DR BEN DRAKEFORD
Senior Lecturer in Economics and Finance at the University of Portsmouth

Ben will conduct a cost benefit analysis of the different options, looking at the medium to long-term cost of using these biodegradable nets compared with their current plastic counterparts.

The four-year project will finish in June 2023, when it is hoped a commercially viable product will be produced to protect marine life above and beneath the waves.

Click here to read our article about the sunglasses made in Cornwall from discarded fishing nets.

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One Response

  1. Dear Team,

    What a wonderful idea, I have been thinking about developing a sustainable biodegradable fishing net myself for a university project. I was wondering which materials you guys were using and how you determined the time until the net decomposes.

    Thank you and congrats on the great project

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