In Mexico they call these turtles "Tortuga Lora". Much of their nesting takes place on the beaches near Rancho Nuevo, Mexico, where in 1947 there were an estimated 40,000 turtles in a single arribada. The population decreased dramatically over the next 40 years to only around 1000 adults in existence in 1987. Pollution, commercial shrimping nets, destruction of their nesting areas and hunting of the turtles for their meat and shells all contributed to their decline. Protection efforts such as the effort by Fernando"Papa Tortuga" Manzano in Tecolutla, Veracruz, Mexico, have brought about an increase in the population of the Kemp’s Ridley turtles. In addition, new laws requiring commercial shrimping boats to use a special type of netting device called a Turtle Excluder have decreased the unnecessary deaths of many sea turtles. Continued work, both onshore and off, is needed to bring numbers up to true recovery.