However , due to over-exploitation of both indigenous labor and the oyster beds , the Spanish pearl economy soon plummeted .
As this system continued to grow , more and more oyster beds were discovered along the Latin American coast , including near Riohacha on Colombia 's Guijara Peninsula .
Due to over-exploitation of both indigenous labor and the oyster beds , the Spanish pearl economy soon plummeted .
As this system continued to grow , more and more oyster beds were discovered along the Latin American coast , including near Riohacha on Colombia 's Guijara Peninsula .