title: First genealogy for a wild marine fish population reveals multigenerational philopatry.
abstract: Natal philopatry, the return of individuals to their natal area for reproduction, has advantages and disadvantages for animal populations. Natal philopatry may generate local genetic adaptation, but it may also increase the probability of inbreeding that can compromise persistence. Although natal philopatry is well documented in anadromous fishes, marine fish may also return to their birth site to spawn. How philopatry shapes wild fish populations is, however, unclear because it requires constructing multigenerational pedigrees that are currently lacking for marine fishes. Here we present the first multigenerational pedigree for a marine fish population by repeatedly genotyping all individuals in a population of the orange clownfish (Amphiprion percula) at Kimbe Island (Papua New Guinea) during a 10-y period. Based on 2927 individuals, our pedigree analysis revealed that longitudinal philopatry was recurrent over five generations. Progeny tended to settle close to their parents, with related individuals often sharing the same colony. However, successful inbreeding was rare, and genetic diversity remained high, suggesting occasional inbreeding does not impair local population persistence. Local reproductive success was dependent on the habitat larvae settled into, rather than the habitat they came from. Our study suggests that longitudinal philopatry can influence both population replenishment and local adaptation of marine fishes. Resolving multigenerational pedigrees during a relatively short period, as we present here, provides a framework for assessing the ability of marine populations to persist and adapt to accelerating climate change.
authors: Ecole Pratique des Hautes Etudes, Paris Siences et Lettres Research University, Université de Perpignan Via Domitia, CNRS, USR 3278 Centre de Recherches Insulaires et Observatoire de l'environnement, F-66360 Perpignan, France; oceane.salles@gmail.com.|Laboratoire d'Excellence "CORAIL," F-66360 Perpignan, France.
authors: Océane C
authors: OC
authors: Salles
authors: CNRS, Université Toulouse 3 Paul Sabatier, Ecole Nationale supérieure de la Formation de l'enseignement Agricole, UMR5174 Laboratoire Évolution et Diversité Biologique, 31062 Toulouse, France.
authors: Benoit
authors: B
authors: Pujol
authors: Ecole Pratique des Hautes Etudes, Paris Siences et Lettres Research University, Université de Perpignan Via Domitia, CNRS, USR 3278 Centre de Recherches Insulaires et Observatoire de l'environnement, F-66360 Perpignan, France.|SymbioSeas and the Marine Applied Research Center, Wilmington, NC 28411.
authors: Jeffrey A
authors: JA
authors: Maynard
authors: Ecole Pratique des Hautes Etudes, Paris Siences et Lettres Research University, Université de Perpignan Via Domitia, CNRS, USR 3278 Centre de Recherches Insulaires et Observatoire de l'environnement, F-66360 Perpignan, France.|Laboratoire d'Excellence "CORAIL," F-66360 Perpignan, France.
authors: Glenn R
authors: GR
authors: Almany
authors: Red Sea Research Center, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia.
authors: Michael L
authors: ML
authors: Berumen
authors: Australian Research Council Centre of Excellence for Coral Reef Studies, and College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia.
authors: Geoffrey P
authors: GP
authors: Jones
authors: Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia 5090000, Chile.
authors: Pablo
authors: P
authors: Saenz-Agudelo
authors: Australian Research Council Centre of Excellence for Coral Reef Studies, and College of Science and Engineering, James Cook University, Townsville, Queensland 4811, Australia.
authors: Maya
authors: M
authors: Srinivasan
authors: Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543.
authors: Simon R
authors: SR
authors: Thorrold
authors: Ecole Pratique des Hautes Etudes, Paris Siences et Lettres Research University, Université de Perpignan Via Domitia, CNRS, USR 3278 Centre de Recherches Insulaires et Observatoire de l'environnement, F-66360 Perpignan, France.|Laboratoire d'Excellence "CORAIL," F-66360 Perpignan, France.
authors: Serge
authors: S
authors: Planes
mesh_terms: D031883:Anemone; D000818:Animals; D005260:Female; D005399:Fishes / Q000235:genetics / Q000502:physiology*; D006702:Homing Behavior; D008297:Male; D010219:Papua New Guinea; D010375:Pedigree; D012098:Reproduction
keywords: Amphiprion percula; inbreeding; multigenerational pedigree; parental effects; self-recruitment