Estimation of pop-up satellite archival tag initial surface position: applications for eastern Bering Sea crab research ...

• Main Authors: Nault, Andrew J., Gaeuman, William B., Daly, Benjamin J., Vanek, Vicki A.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: figshare 2024
• Subjects: Ecology; FOS: Biological sciences; Bering Sea; Alaska
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.7182854; https://springernature.figshare.com/collections/Estimation_of_pop-up_satellite_archival_tag_initial_surface_position_applications_for_eastern_Bering_Sea_crab_research/7182854

Abstract Background Climate change is reshaping Bering Sea crab distributions and recent population declines have elevated the urgency in understanding spatial dynamics in relation to management boundaries. While pop-up satellite archival tags (PSATs) can provide fishery-independent movement information, a high level of spatial resolution is needed to evaluate small-scale (i.e., 10 s of km) movements of crabs. Because PSATs drift at the surface prior to acquisition of a satellite-estimated location (via Argos), the accuracy of pop-up location (i.e., animal terminal position) estimates depends on the ability to accurately estimate drift error. We deployed PSATs (n = 36) on fixed-position moorings in Bristol Bay and Marmot Bay, Alaska to validate a new method to estimate tag pop-up location and an associated error ellipse that uses in situ drift data from surfaced tags to estimate drift error. Estimated pop-up location was compared to the location of tag surfacing (i.e., the tag’s fixed position) and to an ...