Large-Scale Passive Acoustic Monitoring Data Shows Seasonal and Diel Diversity in Foraging Behaviour of Harbour Porpoises Within Their Distributional Range in the Northeast Atlantic.

ABSTRACT: Latitudinal gradient can influence ecosystem dynamics and species distribution, yet the influence on some aspects, such as intra-species diversity, is less well understood. The large-scale distribution of harbour porpoises (Phocoena phocoena) in the Northeast Atlantic, indicates that ecological adaptations within the species might be greater than currently recognised. This study investigates variation in foraging behaviour using long-term passive acoustic monitoring data collected between 2009 and 2023 from Iceland, Sweden, Ireland, and France. In each area, Generalised Additive Models (GAMs) were used to investigate the influence of large-scale environmental variables (water temperature, salinity, primary production, diel phase and daylength) on foraging behaviour. Our results show

SUBMITTER: Stavenow Jerremalm J 

PROVIDER: S-EPMC12664825 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature