My friend Brad is a pro lobster diver here in San Diego. He dives off the Ocean Beach coast with a night light and a bag, roots around under the rocks, and comes up with the maxiumum 7 lobsters per night just about every time he goes out. There is a lobster season so they have time to regenerate.
By the looks of the one he caught last Friday, it might be time to open the season up a bit more. This is a pacific spiny lobster, probably 10 pounds and between 20-40 years old. Amazing that he gave himself up but, damn, was he tasty...
Here is a video of the lobster