Cartrek 400 gps trial#įor reasons we can’t fathom, one urchin flipped onto his back within the first 15minutes during every trial and refused to flip himself back over. We were right though in our guess that they urchins would move less when more complexity was added. On Monday we finally had a day that was nice enough to do some field work. We tethered 10 Tripneustes and put them in two sites, a sea grass bed and an area of barren sand. We measured how far they moved on an hourly basis for five hours. When we went out to measure for the third hour we found out the hard way that our little Tripneuste patch was surrounded by jelly fish. We decided it was best to allow them time to move from the area because we had some good data anyway and we figured waiting an hour or so wouldn’t be devastating (whereas going out their might have been bad for our health).Īfter two stings to my bare leg and one sting on Maria’s bare hand, we concluded it was best to abort and flee from the army of superiorly armed jellies. I can honestly saw that was the only bad experience I had on the reef (and even then it’s not too bad because now I have a story to tell).
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