Table 1.

Data errors from Cuvier's beaked whale satellite tag deployments off Cape Hatteras, North Carolina.

tag	error/anomaly	solution
ZcTag029	One satellite message extended for 13 days and overlapped with other behaviour log messages. It included a dive of 230 h and a surface interval of 62 h. This message was probably corrupt and was erroneously retained.	The corrupt message was removed from data. Overlapping, normal behaviour log messages were kept.
ZcTag040	Final two dives had speeds over 15 m s−1. Probably reflects battery or pressure sensor failure just before the tag stopped transmitting.	The final message was removed.
ZcTag042	Pressure sensor failed on 9 Nov 2015. Biologically impossible speeds occurred and pressure sensor offset indicated failure.	All data after 7 Nov 2015 were removed.
ZcTag047	Pressure sensor failed on or before 27 May 2016 (2 days into deployment). Pressure sensor offset indicated failure.	Data from this tag were not used.
ZcTag050	Low tag deployment resulted in possible under sampling of conductivity sensor. One-third of all surfacings were 2 s long.	Only depth data were used, all duration data were excluded.
ZcTag051	Dive recorded to 3568 m, deeper than the rating of the tag.	This dive was removed from statistics; all other dives were retained.