Nobody mentioned pollution. There once were massive kelp beds off Palos Verdes and the HorseShoe Kelp off San Pedro. It was discovered that the only organism that could thrive off the pollution created by the Whites Point sewage out let were sea urchins...which also eat the kelp. Russ Izor had tried transplanting kelp from Catalina Island back to the mainland without any significant success. I would assume that as San Diego and nearby Tijuana continue to grow, similar adverse effects are occuring.
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