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Satellite Tracking

Why did animal X stop transmitting?

Cc Sarah Jane Karen

Queensland: K'gari (Fraser Island) nesting Green and Loggerhead turtles 2017-18

A project of Sandy Cape Turtle Volunteers.


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Species: Loggerhead
Life Stage: Nesting Adult
Gender: Female
Release Date: 2017-11-21 11:00:00
Release Location: 15.3 km West of Sandy Cape
Last Location: 2018-01-08 10:10:46

Background

Front Left flipper QA52921
Front Right Flipper QA52920
s158484 Wildlife Computers Spot6 tracker with ARGOS fixes and thermometer
Carapace "V"

Curved Carapace Length 97.4 cm

1) She nested on the night of 20th November 2017 15.3km West of Sandy Cape, and we took her to the Lighthouse in the trailer and attached the tracker, and then released her at the Lighthouse gate on the afternoon of 22nd November.
2) She had a 21 day inter-nesting interval returning to nest on the 11th of December at 17.3km West of Sandy Cape but had spent most of her inter-nesting period SW of here around the corner in Platypus Bay.
3) She had a 13 day inter-nesting interval nesting again on the 24th December about 1.5km West of Sandy Cape:
4) She had a 12 day inter-nesting interval, and her final nest recorded was on the 5th January 2018 at 1.04km South of Sandy Cape.

The last signal from the tracker came at 8:10pm AEST on the 8th January 2017, after the turtle appeared to be drifting on the surface for five hours the night before from midnight to 5am, 40km to 50km NW of Rooney Point.

This was unusual behavior for this turtle during the time she was tracked, and suggests that transmissions ceased because she suffered some kind of incident or injury leading to her death, rather than because of a failure of the tracker.


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