Isotopic Tracers Suggest Limited Trans-Oceanic Movements and Regional Residency in North Pacific Blue Sharks (Prionace glauca)

• Published in: Frontiers in Marine Science Vol. 8
• Main Authors: Madigan, Daniel J., Shipley, Oliver N., Carlisle, Aaron B., Dewar, Heidi, Snodgrass, Owyn E., Hussey, Nigel E.
• Format: Journal Article
• Language: English
• Published: Lausanne Frontiers Research Foundation 26.05.2021; Frontiers Media S.A
• Subjects: Biology; Connectivity; Demography; Fish populations; Fisheries; Fisheries biology; isoclock; isoscape; Isotopic tracers; Juveniles; Marine fishes; migration; Migrations; Niche overlap; pelagic ecology; Pelagic fisheries; Population; Population dynamics; Predators; Prionace glauca; Regions; Sharks; stable isotope; Stable isotopes; Stock assessment; Tracers; trophic ecology; Pacific Ocean

Blue sharks ( Prionace glauca ) are globally distributed, large-bodied pelagic sharks that make extensive migrations throughout their range. In the North Pacific, mark-recapture studies have shown trans -Pacific migrations, but knowledge gaps in migration frequency hinder understanding of regional c...