SeaSTORE Scientists Measure Trawling's Impact on Irish Sea Carbon Storage

A first-of-its-kind study in the Irish Sea, involving scientists from Plymouth Marine Laboratory, is addressing critical evidence gaps around the impact of seabed trawling on carbon storage and its potential implications for climate change. The SeaSTORE project provides a unique opportunity for scientists working with the fishing industry to measure carbon during active fishing. This will help researchers understand how disturbed carbon moves through water and how much may be released into the atmosphere.

 

Details of the Study

 

A pioneering study is under way. It is a first-of-its-kind study. It takes place in the Irish Sea. It involves scientists from Plymouth Marine Laboratory. It addresses critical evidence gaps.

The study concerns seabed trawling. This is dragging nets along the seabed. It is known to disturb stored carbon. Yet its effects are poorly understood. The study aims to clarify these.

 

The Research Approach

 

The project uses a distinctive approach. It measures carbon during active fishing. This covers the water column and sediment. It studies real-world fishing activity. This is a unique opportunity.

The method involves close collaboration. The research ship follows the trawlers. It analyses impacts immediately. This works with the fishing industry. Three professional trawlers were studied.

 

The Research Cruises

 

The study spans multiple cruises. One ran in summer 2026. It began in July and ended in August. It followed an earlier winter cruise. Together they cover different conditions.

This comparison is important. The cruises span seasons and weather. This reveals varied impacts. It builds a fuller picture. It helps understand trawling's effects across conditions.

 

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The Key Questions

 

The project addresses four key questions. These concern carbon release potential. One examines gear and sediment types. Another tracks disturbed carbon movement. Water column processes are also studied.

A further question looks ahead. It considers alternative trawling approaches. These could reduce carbon loss. They could also improve carbon recovery. This informs potential solutions.

 

The Scientific Context

 

The study fills important gaps. Trawling is a major seabed disturbance. Yet its carbon impact is unclear. A 2024 study suggested significant emissions. However, conclusive evidence is lacking.

The fate of carbon is complex. Some displaced carbon may release CO2. A briefing noted variable reactivity. Some reaches the atmosphere. This depends on complex ocean interactions.

 

The Balanced Approach

 

The project takes a measured stance. It does not argue for or against trawling. Fisheries provide vital seafood. Food production remains part of the conversation. The aim is informing trade-offs.

The findings will support policy. They will be shared with government. This provides robust evidence. It could inform net-zero and food security goals. The industry has supported the research.