Larval fish dispersal in a coral-reef seascape

Glenn R. Almany, Serge Planes, Simon R. Thorrold, Michael L. Berumen, Michael Bode, Pablo Saenz Agudelo, Mary C. Bonin, Ashley J. Frisch, Hugo B. Harrison, Vanessa Messmer, Gerrit B. Nanninga, Mark Priest, Maya Srinivasan, Tane Sinclair-Taylor, David H. Williamson, Geoffrey P. Jones

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Larval dispersal is a critical yet enigmatic process in the persistence and productivity of marine metapopulations. Empirical data on larval dispersal remain scarce, hindering the use of spatial management tools in efforts to sustain ocean biodiversity and fisheries. Here we document dispersal among subpopulations of clownfish (Amphiprion percula) and butterflyfish (Chaetodon vagabundus) from eight sites across a large seascape (10,000 km2) in Papua New Guinea across 2 years. Dispersal of clownfish was consistent between years, with mean observed dispersal distances of 15 km and 10 km in 2009 and 2011, respectively. A Laplacian statistical distribution (the dispersal kernel) predicted a mean dispersal distance of 13–19 km, with 90% of settlement occurring within 31–43 km. Mean dispersal distances were considerably greater (43–64 km) for butterflyfish, with kernels declining only gradually from spawning locations. We demonstrate that dispersal can be measured on spatial scales sufficient to inform the design of and test the performance of marine reserve networks.
Original languageEnglish (US)
JournalNature Ecology & Evolution
Volume1
Issue number6
DOIs
StatePublished - May 8 2017

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