School of Biology, University of St Andrews

Tag: sifids

Effect of temporal and spatial resolution on the identification of fishing activities – Published paper

Dr Mendo’s latest paper, “Effect of temporal and spatial resolution on identification of fishing activities in small-scale fisheries using pots and traps“, has been published in the ICES Journal of Marine Science. Small-scale fisheries (SSFs) vessels have generally been exempted from positional reporting requirements, but recent developments of compact low-cost systems offer the potential to monitor them effectively.
The paper’s analysis highlights the optimal rates of data collection to characterise fishing activities at the appropriate spatial resolution, minimising demands for data transmission, storage and analysis. This has significant implications globally for sustainable management of these fisheries, many of which are currently unregulated.

CRMG’s Dr Mendo and Dr James along with fellow colleagues used onboard observers to log fishing activities whilst collecting Global Navigation Satellite System (GNSS) positional data every second on 66 Scottish vessels 12 m and under in length, using static gear (pots or creels), and primarily targeting lobsters, crabs, and prawns. The data were then analysed to understand what the minimum GNSS logging frequency would be needed to accurately infer fishing activities from just the positional track alone (accounting for other key vessel characteristics such as vessel engine size) as part of the SIFIDS Project. For vessels using pots and traps in Scotland, a polling interval of 60 seconds was found to be optimal for estimating the number of hauls, total area fished per trip, mean area fished and spatial extent of fishing activities in small and medium vessels.

Paper URL:

SIFIDS mention in national discussion paper

SIFIDS has been mentioned in Marine Scotland’s Future of fisheries management in Scotland: national discussion paper (March 2019). The paper seeks to start an in-depth discussion to help inform and develop the Scottish Government’s Future Fisheries Management Strategy. It contains a range of ideas and proposals to help deliver a future management structure which will firmly establish Scotland’s place as a world leader in responsible and sustainable fisheries management.
The Scottish Government is committed to delivering a sustainable, evidence-based approach to the management of Scottish fisheries based on high-quality scientific data. SIFIDS is highlighted as a project helping combat the challenge of data deficiency encountered when conducting inshore stock assessments. Investigations into innovative, low-cost and low-maintenance technology will help SIFIDS formulate attainable recommendations to Scottish Government on how best to improve inshore fisheries science.

SIFIDS poster at first Scotland’s International Marine Conference

SIFIDS Project Manager, Hannah, presented a SIFIDS-focused poster at the first Scotland’s International Marine Conference, Glasgow (20-21 Feb 2019).  The conference focused on current national and international actions to protect the marine environment with speeches from Nicola Sturgeon and Lewis Pugh, and provided a great opportunity to promote key aspects of SIFIDS to the wider marine community. 

If you would like a PDF copy of the poster shown at the conference please email