Transcript from an episode of the science podcast 'Crónicas de la Tierra' discussing the ecological recovery of Cabo Pulmo National Marine Park in Mexico:
'Welcome to Crónicas de la Tierra. Today we examine the transformation of Cabo Pulmo in Baja California Sur. In 1995, after decades of depleted fish stocks due to commercial overfishing, the local community took a radical step by establishing a 7,111-hectare marine protected area with a strict no-fishing ban. While early critics doubted the economic viability for former fishermen, the community pivoted toward regulated eco-tourism. Scientific monitoring over a decade revealed an unprecedented 463 percent increase in total fish biomass between 1999 and 2009, with predatory species like snappers and groupers accounting for the largest share of this resurgence. Crucially, researchers noted that adjacent unprotected waters also benefited, experiencing a 35 percent rise in local fishery yields due to larval spillover from the reserve core. Today, tourism generated by diving operations contributes approximately 5.8 million dollars annually to the municipal economy, while community patrols enforce surveillance across 100 percent of the sanctuary boundaries.'
According to the podcast transcript, which specific ecological effect occurred in the unprotected marine areas surrounding the reserve?
- AA 463 percent increase in the biomass of predatory fish such as snappers and groupers
- A 35 percent increase in local fishery catches resulting from larval spilloverCevap
- CThe establishment of community surveillance patrols covering 100 percent of the perimeter
- DA 5.8 million dollar direct expansion of commercial fishing fleets