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Full-sibs in cohorts of newly settled coral reef fishes.

ABSTRACT: Reef fishes exhibit a bipartite life cycle where a benthic adult stage is preceded by a pelagic dispersal phase during which larvae are presumed to be mixed and transported by oceanic currents. Genetic analyses based on twelve microsatellite loci of 181 three-spot dascyllus (Dascyllus trimaculatus) that settled concurrently on a small reef in French Polynesia revealed 11 groups of siblings (1 full sibs and 10 half-sibs). This is the first evidence that fish siblings can journey together throughout their entire planktonic dispersal phase (nearly a month long for three-spot dascyllus). Our findings have critical implications for the dynamics and genetic structure of fish populations, as well as for the design of marine protected areas and management of fisheries.

SUBMITTER: Bernardi G

PROVIDER: S-EPMC3441696 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Full-sibs in cohorts of newly settled coral reef fishes.

Bernardi Giacomo G Beldade Ricardo R Holbrook Sally J SJ Schmitt Russell J RJ

PloS one 20120913 9

Reef fishes exhibit a bipartite life cycle where a benthic adult stage is preceded by a pelagic dispersal phase during which larvae are presumed to be mixed and transported by oceanic currents. Genetic analyses based on twelve microsatellite loci of 181 three-spot dascyllus (Dascyllus trimaculatus) that settled concurrently on a small reef in French Polynesia revealed 11 groups of siblings (1 full sibs and 10 half-sibs). This is the first evidence that fish siblings can journey together througho ...[more]

PMID: 23028700

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