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Satellite Tracking

Why did animal X stop transmitting?

Ninja - Israel's sea turtle monitoring program

A project of Israel Nature and Parks Authrity.

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Background

Ninja is an adult Loggerhead turtle and was admitted to the center in October 2016. He was found by a lifeguard on the beach and was in a very weak and serious state. Once admitted to the rescue center, Ninja was diagnosed with two unrelated injuries. The first, a severe head injury that may have been caused by a marine vessel or purposely by fishermen, and the second, injuries caused by getting entangled in human debris such as fishing line, netting, sacks or plastic. Being entangled caused deep cuts in Ninjas limbs and neck and even amputated one of his back limbs.
Based on the amount of parasites and algae that was growing on him when he first came in, it would seem Ninja floated motionless in the sea for weeks or even months, not even being able to eat. At the center, Ninja received a fluid I/V and was held in fresh water for 24 hours in order to ease the removal of the parasites (who are used to salt water only). The rehabilitation of such acute head injuries is very slow, only a few months after Ninja arrived did he begin eating on his own and showing healthier swimming patterns. As if that wasn't enough, a few months after being admitted, Ninja underwent a CT scan that revealed a third injury, a fishing hook in his intestine. Given the complex surgery it would take to remove it, and the fact that the hook didn't bother Ninja's recovery, it was decided that the hook must be lodged in a safe location and therefore it is better not to remove it.
Now, more than six months later, the fracture in Ninja's head is completely covered with healthy tissue, he is eating over a kilo of fish a day, and is being released.

  • The presentation of data here does not constitute publication. All data remain copyright of the project partners. Maps or data on this website may not be used or referenced without the explicit written consent of the data owners.
  • For more information please visit the project website.
  • This map connects positions generated by the ARGOS system designated as location class (lc) '4', '3', '2', '1', '0', 'A'. Locations that have been "filtered" are displayed as small red dots.
  • This maps also shows locations of class 'B', 'Z', 'X' as small black dots which are not connected by a route line.
  • Bathymetry layers are derived from the GEBCO One Minute Grid.
  • Sea surface temperature and chlorophyll are derived from NASA's Ocean Color data.
  • Ocean currents and sea surface heights are derived from AVISO's Ssalto/Duacs Gridded Absolute Dynamic Topography & absolute geostrophic velocities data.

SEATURTLE.ORG collaborates with Argos to help scientists and conservationists manage and analyse their valuable animal tracking data.

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