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Satellite Tracking
IMMS Sea Turtles Being Tracked in the Gulf of Mexico

Crush came to IMMS when he was caught on a fisherman's hook in Waveland, MS. Crush was rehabilitated and was released in the MS Sound in November 2010. In Spring 2011, Crush returned to IMMS after being caught by a fisherman at the same fishing pier where he was originally hooked.  The last transmission from the satellite tag Crush was wearing was received on April 24 and he was caught on April 30 with almost no indication that he had ever been wearing the tracking device! This confirms that the satellite tags do not remain on the sea turtles for an extreme amount of time and do not affect the sea turtles long-term well being.

Crush appears to be a repeat offender. When he first arrived at IMMS in August, 2010, IMMS veterinarian discovered several hooks embedded deep within his esophagus. The hooks were successfully removed through surgery.  When Crush returned, it was discovered that he had swallowed additional hooks that had to be removed.

In September 2011, Crush was re-released in the MS Sound equipped with another tracking device. You can see where Crush traveled right here on the IMMS website!

Frequently Asked Questions
  • What kind of satellite tags is IMMS using on the sea turtles?
    • The satellite tags used:  SirTrack KiwiSat
  • How long does a satellite transmitter last?
    • The transmitter battery life is approximately 150 days.
  • How does the satellite transmitter work?
    • Satellite transmitters only transmit when the sea turtles come up for air (to breathe). Once at the surface, the tag turns on and a signal is sent to the satellite with the turtle's geographic coordinates.  IMMS uses these coordinates to plot the sea turtle's movement.
  • What happened to the sea turtles?
    • Many IMMS sea turtles have tags that are still transmitting.  They will transmit for a total of around 150 days. When the tag stops transmitting, the sea turtle's last know location will remain on the map with a 'gray' colored background to represent that the satellite tag is no longer transmitting.
    The programs and activities highlighted on this website were partially funded with qualified outer continental shelf oil and gas revenues by the Coastal Impact Assistance Program, Bureau of Ocean Energy Management, Regulation and Enforcement, US Department of the Interior through a subgrant from the Mississippi Department of Marine Resources.
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