Schmid, J.R. and Bolten, Alan B. and Bjorndal, Karen A. and Lindberg, William J.
Activity patterns of Kemp's ridley turtles, Lepidochelys kempii, in the coastal waters of the Cedar Keys, Florida.
Marine Biology, 140(2),
Radio and sonic telemetry were used to investigate
the tidal orientation, rate of movement
(ROM), and surfacing behavior of nine Kemp's ridley
turtles, Lepidochelys kempii, tracked east of the Cedar
Keys, Florida. The mean of mean turtle bearings on
incoming (48 ± 49 0) and falling (232 ± 41 0) tides was
significantly oriented to the mean directions of tidal flow
(37±9°, P<0.0025, and 234±9 0, P<0.005, respectively).
Turtles had a mean ROM of 0.44±0.33 km/h
(range: 0.004-1.758 km/h), a mean surface duration of
18± 15 s (range: 1-88 s), and a mean submergence duration
of 8.4± 6.4 min (range: 0.2-60.0 min). ROM was
negatively correlated with surface and submergence
durations and positively correlated with the number of
surfacings. Furthermore, ROMs were higher and surface and submergence durations were shorter during the day.
Daily activities of turtles were attributed to food acquisition
||Activity patterns of Kemp's ridley turtles, Lepidochelys kempii, in the coastal waters of the Cedar Keys, Florida
|Bolten, Alan B.|
|Bjorndal, Karen A.|
|Lindberg, William J.|
|Journal or Publication Title:
||Florida Cooperative Fish and Wildlife Research Unit
||Electronic supplementary material to this paper can be obtained by
using the Springer LINK server located at http://dx.doi.org/
10.1007/s002270100708. This document was submitted by the Florida Cooperative Fish and Wildlife Research Unit.
||Kemp's ridley turtles, Lepidochelys kempii, Cedar Keys, Florida, activity
||27 May 2011 15:05
||29 Sep 2011 14:54
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