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Scott indicates that the hydrophone looks ok.
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Examining the hydrophone at the end of the PVC pipe
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Close up of the elastic cord used to secure the lower PVC pipe to the piling.
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Re-inforcing the electrical tape that secures the hydrophone to the end of the PVC "L"
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Adding more tape.
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Examining the finished product.
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The plastic chain that was supposed to allow tension.  It was easiest to increase tension simply by taking another turn around the PVC pipe...
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Looking approximately horizontally at the hydrophone near the end of the PVC "L."
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Making final adjustments to the lower PVC pipe.
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Making *final* final adjustments to the lower PVC pipe.
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We observed a 25cm-long Peltodoris nobilis or Noble Dorid on a submerged piling ~100m north of the Center's pier.
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Zoomed in on the "naked lungs" of this big nudibranch.