Uncommon or cryptic? Challenges in estimating leopard seal abundance by conventional but state-of-the-art methods

• Published in: Deep Sea Research Part I: Oceanographic Research Papers
• Main Authors: Southwell, Colin, Paxton, Charles G. M., Borchers, David, Boveng, Peter, Rogers, Tracey, de la Mare, William K.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2008
• Subjects: abundance; distribution; East Antarctica; haul-out; model-based inference; leopard seal; pack-ice; HYDRURGA-LEPTONYX; LOBODON-CARCINOPHAGUS; WINTER DISPERSAL; PRYDZ BAY; BEHAVIOR; Hydrurga; Prydz Bay; Antarc*; Antarctica; Hydrurga leptonyx; Leopard Seal; Leopard Seals; Lobodon carcinophagus
• Online Access: https://research-portal.st-andrews.ac.uk/en/publications/ab69c352-5c41-4fe4-8eb6-9a4aa0d91f06; https://doi.org/10.1016/j.dsr.2008.01.005; http://www.scopus.com/inward/record.url?scp=41549144279&partnerID=8YFLogxK

The method traditionally used to estimate pack-ice seal abundance employs sighting surveys from ships or ail-craft to estimate the number of seals hauled out oil the ice, combined with studies of haul-out behaviour to estimate the proportion of time spent on the ice. Application of this approach has...