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.

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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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