On a mission to end ghost fishing and plastic pollution in our oceans through better marine gear.

Catchgreen develops high-performance biodegradable ropes, twines, nets, and marine products for the fishing and aquaculture industries.

Marine gear must perform in the water without persisting forever

Biodegradable gear for real marine applications

Catchgreen develops high-performance biodegradable ropes, twines, nets and marine products for fishing, aquaculture and other ocean industries.

Our products are designed to remain strong and functional throughout their intended use while reducing long-term environmental persistence if they are lost at sea.

We work with fishers, fleets, aquaculture producers, seaweed farmers, research organisations and marine programmes to develop products for specific applications and working conditions.

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Fishing and aquaculture gear must withstand salt water, UV exposure, abrasion and repeated use.

But when conventional plastic gear is lost, its durability becomes a problem. It can continue trapping marine life, damaging habitats and breaking down into microplastics for decades.

The challenge is to create gear that performs reliably during use, while reducing long-term persistence if lost.

This is the challenge Catchgreen is working to solve.

Biodegradable marine gear cannot simply degrade quickly.

It must first perform safely and reliably during use.

Catchgreen products are developed around the principle of controlled durability. This means they are designed to provide the strength and functionality required for their intended service life, while progressively losing integrity following prolonged environmental exposure if lost.

Performance depends on the application, product design, material formulation, thickness, construction and environmental conditions.

For this reason, every Catchgreen product is developed and tested for a defined use.

Designed for performance first

Products for fishing and aquaculture

Ropes and twines

Biodegradable ropes, braids and twines developed for fishing, aquaculture, seaweed farming, traps, pots and other marine applications.

Seaweed farming products

Grow ropes, tie-ties and farming lines designed for repeated handling and long-term use in demanding coastal conditions.

Fishing gear components

Ropes, lines, joining materials and structural components for gillnets, traps, pots, longlines and other fishing gear.

Biodegradable FAD components

Ropes, twines, panels, streamers and other components being developed for safer and increasingly biodegradable fish aggregating devices.

Nets and new marine products

Biodegradable netting, flotation systems and other products are being developed and validated with specialist partners.

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Tested in working marine environments

Catchgreen products are developed through real-world trials, not only laboratory testing

Fishing gear
Catchgreen products have been tested in gillnets, basket traps, lobster pots, and other fishing applications.

The trials help evaluate catch performance, handling, durability, and product design under real operational conditions.

Seaweed farming
Biodegradable ropes were tested over 18 months in nursery and community seaweed farms on the Kenyan coast.

The ropes remained functional under strong UV exposure, high temperatures, currents, repeated handling and demanding farming conditions.

In the nursery trials, the biodegradable ropes achieved average productivity approximately 8.5% higher than the conventional comparison ropes under the specific trial conditions.

Nets and new products
Our biodegradable knotless netting is being developed for fishing and aquaculture uses, including mussel socks and other net-based structures. Each application will require manufacturing trials and field testing before commercial use.

FADs
Catchgreen is exploring biodegradable ropes, twines, panels, and other components for fish aggregating devices. These products have not yet been field tested and will require application-specific manufacturing trials and validation before commercial use

Better gear for working oceans

Marine gear should be strong enough to do its job without becoming a permanent part of the ocean.

Catchgreen is developing practical biodegradable alternatives for the people and industries that depend on marine gear every day.