Ending credits state: The cooperation and information provided by the California Department of Fish and Game is gratefully acknowledged.
"It was in Tehama County on the night of June 26, 1871, that, at the request of the California Fisheries Commission, a New Yorker named Seth Green dumped 10,000 shad fry into the river. (He had brought them in milk cans aboard the newly completed transcontinental railroad.) Within three years, the shad had begun to return to spawn. Over the next decade, about 850,000 more shad were planted in the river.
The shad took to Western rivers in much the way that Eastern settlers took to California's fertile soil and balmy climate. By the turn of the century, shad had expanded south to Los Angeles County and north as far as Puget Sound. Now they are found from Todos Santos in Baja Mexico to British Columbia and all the way across the Bering Sea in Siberia."
Source: artofeating com the-lost-fishery-shad-in-california
The shad took to Western rivers in much the way that Eastern settlers took to California's fertile soil and balmy climate. By the turn of the century, shad had expanded south to Los Angeles County and north as far as Puget Sound. Now they are found from Todos Santos in Baja Mexico to British Columbia and all the way across the Bering Sea in Siberia."
Source: artofeating com the-lost-fishery-shad-in-california