Sammy Andrzejaczek

Sammy Andrzejaczek

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Published on Jul 26, 2016

Thank you!

We just want to extend a huge thank you to all of you who supported us.We are really grateful for your support and generous contributions. You have made our trip to Ningaloo next year possible and ...

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Published on Jul 05, 2016

3-dimensional interaction plot

The above plot demonstrates the kind of data our tags can record. The top graph displays a longer term depth plot (12 hours), the middle graph displays a shorter term depth plot (30...

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Published on Jul 04, 2016

Time extension

Hi All,Thank you so much for your generous support. Pledges have recently picked up and Experiment have kindly allowed us to extend our project by two weeks to help us meet our target. We will cont...

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Published on Jun 23, 2016

Tiger shark stomach eversion and retraction video

Tiger shark stomach eversion and retraction from Sammy Andrzejaczek on Vimeo.A defense strategy of many sharks following capture is to regurgitate their stomachs to get rid of any foreign objects. ...

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Published on Jun 22, 2016

What are yo-yo movements?

Yo-yo movements are continuous dives used by tiger sharks. The above depth plot shows just one hour of depth data from a 3.5 m female tiger shark. As you can see, she is constantly ...

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Hi Mike, the graph is from data collected a year ago, and this footage is from just a month and a half ago so I haven't had a lot of time to put the data together! Good idea to put depth with the video though! I'll give it a go in the future. Sharks don't actually have a swim bladder but can use their negative buoyancy and gravity to glide down in what we call drift dives.
Jul 08, 2016
Why do tiger sharks swim up and down the water column? – An up-close view of their vertical movements
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Thanks so much Lauren! I can't wait either.
Jul 04, 2016
Why do tiger sharks swim up and down the water column? – An up-close view of their vertical movements
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Thanks Flavia! You just made my day!
Jun 23, 2016
Why do tiger sharks swim up and down the water column? – An up-close view of their vertical movements
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