New data shows drop in Scotland's harbor seal numbers and sparks concern for gray seal population

Scotland's harbor seal population and summer gray seal abundance have experienced a significant decline, according to a recent study by the University of St Andrews' Sea Mammal Research Unit (SMRU). The findings, released today, are based on comprehensive surveys conducted between 2021 and 2025 as part of the sixth Scottish census of seal abundance. The research, commissioned by NatureScot, marks a milestone in the 30-year time series, providing valuable insights into the long-term trends of Scotland's seal populations.

The data, collected through August haulout counts, reveal a concerning downward trend in the status of Scotland's harbor seal population and summer gray seal abundance. The study's results underscore the importance of continued monitoring and conservation efforts to protect these marine mammals. The 30-year time series provides a unique opportunity to analyze the fluctuations in seal populations, allowing researchers to identify potential causes and develop effective strategies to mitigate the decline. The findings of this study will inform conservation policies and guide future research initiatives aimed at preserving Scotland's seal populations.

The release of this report highlights the need for continued collaboration between researchers, conservation organizations, and policymakers to address the decline of Scotland's harbor seal population and summer gray seal abundance. By working together, it is possible to develop effective conservation strategies and protect these iconic marine mammals for future generations.