Interesting stuff and it lead me to this
http://www.asnailsodyssey.com/LEARNABOUT/URCHIN/urchPred.php
It seems urchins in kelp beds have gonads 3 times larger than the same species living in barrens.
Is this a problem that calls for more sea otters as a solution? I hope so. I love watching those little scamps.
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