Posted by Dr Bill on March 15, 2003 at 19:29:25:
In Reply to: Re: casino point is a very good example of a great eco system at work... posted by Steve on March 12, 2003 at 10:14:56:
It was pretty much common knowledge back then, before the 1972 Federal Water Pollution Control Act (Clean Water Act), that human feces were providing a secondary source of organic matter for the urchins. I don't have a citation that I could quickly locate, but Wheeler North's work during that period should acknowledge it as might the sewage treatment reports from White's Point.
I know I was teaching it in high school marine biology classes possibly as early as 1969 ot 1970.
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