Local replenishment of coral reef fish populations in a marine reserve |
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Authors: | Almany Glenn R Berumen Michael L Thorrold Simon R Planes Serge Jones Geoffrey P |
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Institution: | Australian Research Council Centre of Excellence for Coral Reef Studies and School of Marine and Tropical Biology, James Cook University, Townsville QLD 4811, Australia. glenn.almany@jcu.edu.au |
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Abstract: | The scale of larval dispersal of marine organisms is important for the design of networks of marine protected areas. We examined the fate of coral reef fish larvae produced at a small island reserve, using a mass-marking method based on maternal transmission of stable isotopes to offspring. Approximately 60% of settled juveniles were spawned at the island, for species with both short (<2 weeks) and long (>1 month) pelagic larval durations. If natal homing of larvae is a common life-history strategy, the appropriate spatial scales for the management and conservation of coral reefs are likely to be much smaller than previously assumed. |
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