What is it about?
Networks of no-take marine reserves support local fisheries by ensuring a consistent supply of juvenile fish. We measured larval dispersal patterns for a highly exploited coral grouper and quantified temporal fluctuations in the recruitment contribution from a network of no-take marine reserves on the Great Barrier Reef. Although recruitment contributions from individual reserves are extremely variable, the reserve network generates a connectivity portfolio effect that successfully dampens the volatility of larval supply to nearby coral reefs.
Photo by David Clode on Unsplash
Why is it important?
Our findings demonstrate that effective reserve networks can yield previously unrecognized stabilizing benefits that ensure a consistent replenishment of exploited fish stocks.
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This page is a summary of: A connectivity portfolio effect stabilizes marine reserve performance, Proceedings of the National Academy of Sciences, September 2020, Proceedings of the National Academy of Sciences, DOI: 10.1073/pnas.1920580117.
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