How collaboration with researchers protects fish stocks

Healthy fish stocks are the foundation of a sustainable fishing industry. They support coastal employment, provide nutritious food and give future generations the opportunity to continue working at sea.

Protecting those stocks depends on good decisions, and good decisions depend on reliable information. That is why collaboration between fishing crews, scientists, researchers and fisheries managers is of vital importance.

Fishermen spend long periods at sea and build a detailed understanding of the conditions in which they work. Scientists bring survey methods, analysis and long-term monitoring that help explain what is happening across whole ecosystems. By working together, practical experience and scientific evidence can provide a stronger picture of the movement and health of fish stocks.

Science at sea

Modern fisheries science is not limited to laboratories or research vessels. Commercial fishing vessels play a pivotal role in gathering information from the areas where they operate.

This can include catch data, fishing locations, timing, environmental conditions and information about the size and composition of fish caught. When collected consistently and analysed alongside scientific surveys, these records can help researchers identify trends in stock distribution, recruitment and seasonal behaviour.

For pelagic fisheries, where species such as mackerel, herring, horse mackerel and blue whiting can travel across large areas of the North Atlantic, this information is particularly valuable. Fish do not recognise national boundaries, and their distribution may change in response to temperature, food availability, currents and wider environmental conditions.

Regular scientific monitoring helps build an up-to-date understanding of these changes and supports responsible decisions on catch limits and management measures.

Testing better ways of fishing

Collaboration also creates opportunities to trial new technology and more selective fishing methods.

Gear trials can help assess how changes to nets, mesh sizes, sorting systems or fishing practices may improve selectivity and reduce unwanted catch. These trials are most effective when they combine the expertise of crews, who understand how gear performs in real fishing conditions, with independent scientific observation and analysis.

Small practical improvements can make a significant difference. A change that helps target the intended species more accurately, enables fish to be released where appropriate, or reduces the capture of non-target species can support both responsible harvesting and operational efficiency.

Innovation at sea is therefore not only about modern equipment. It is about continually learning, testing and improving practices, while ensuring that new approaches are evidence-based and science-led.

Surveys, tagging and observer programmes

Several forms of research can contribute to a stronger understanding of fish stocks. Scientific surveys use specialist equipment and sampling methods to estimate the levels, distribution and age profile of fish populations. These surveys provide an important snapshot of conditions at sea and are often key to informing the industry’s knowledge of fish stock.

Tagging programmes can provide further insight into how fish move, grow and migrate. By recording where tagged fish are released and later recovered, researchers can improve their understanding of migration routes, stock structure as well as the connections between fishing areas.

Finally, observer programmes can also play an important role. Independent observers or electronic monitoring systems can record catch composition, by-catch, discards and fishing activity. This helps ensure that data is robust, improves transparency and provides a fuller picture of precisely what is happening during fishing operations.

Each method has value. Together, they help turn observations at sea into evidence that can guide robust long-term management.

Working together day-to-day

Effective collaboration is built through practical and continued day-to-day cooperation. On board, crew members may assist with the safe handling of samples, record information on catches, support equipment trials or share observations about fish behaviour and changing conditions. Scientists and researchers, in turn, can explain the purpose of data collection and provide feedback on how the information contributes to wider stock assessments.

This exchange matters. A skipper’s knowledge of local conditions, seasonal patterns and fishing operations can help inform research questions. Scientific analysis can then test those observations over time and across wider areas.

The best outcomes come when research is not seen as separate from fishing, but as part of responsible fishing. Open communication, clear procedures and mutual respect make it easier to gather high-quality information and apply the results in practice.

Data exploitation

Fishing is highly regulated and consequently fishing businesses submit comprehensive data from their operations at regular intervals. This data concerning areas, times, target species, bycatch and mandatory discards is received and retained by fisheries authorities across jurisdictions.  It is essential that there is sufficient investment in data handling capacity and analysis capability to exploit the full potential of this powerful asset. 

Perceived barriers apparently imposed by data protection law must be managed and/or removed to enable the fullest access to data sets to deliver the ‘best available evidence’. 

The fishing industry dutifully fulfils its role in submitting timely data, this must be matched by a commitment for data to be gathered once and used many times to allow dynamic feedback based on the most current data to inform fisheries management decisions.

Protecting access for the future

Science-led fisheries management is essential to securing long-term access to stocks. Catch limits, quotas and other management measures are designed to keep fishing pressure aligned with the productivity of a stock. To work effectively, they must be informed by the best available evidence. The more complete and reliable the evidence, the better managers can respond to changes in stock abundance and distribution.

This is especially important in a changing marine environment. As ocean conditions evolve, historic patterns cannot always be relied upon. Continued monitoring, data sharing and collaboration allow both the industry and regulators to respond to new information while maintaining a clear focus on sustainability.

At North Atlantic Fishing Company, we recognise that a healthy ocean is essential to the future of fishing. By supporting research, sharing knowledge from sea and working constructively with scientists, managers and other partners, the industry can help protect the stocks on which it depends.

The goal is clear: responsible harvesting today, supported by sound science, so that well-managed fisheries can continue to provide food, employment and opportunity for generations to come.