Type
ArticleAuthors
Salles, Océane C.Maynard, Jeffrey A.
Joannides, Marc
Barbu, Corentin M.
Saenz-Agudelo, Pablo
Almany, Glenn R.

Berumen, Michael L.

Thorrold, Simon R.

Jones, Geoffrey P.
Planes, Serge
KAUST Department
Biological and Environmental Sciences and Engineering (BESE) DivisionMarine Science Program
Red Sea Research Center (RSRC)
Date
2015-11-18Online Publication Date
2015-11-18Print Publication Date
2015-11-22Permanent link to this record
http://hdl.handle.net/10754/595317
Metadata
Show full item recordAbstract
Determining the conditions under which populations may persist requires accurate estimates of demographic parameters, including immigration, local reproductive success, and mortality rates. In marine populations, empirical estimates of these parameters are rare, due at least in part to the pelagic dispersal stage common to most marine organisms. Here, we evaluate population persistence and turnover for a population of orange clownfish, Amphiprion percula, at Kimbe Island in Papua New Guinea. All fish in the population were sampled and genotyped on five occasions at 2-year intervals spanning eight years. The genetic data enabled estimates of reproductive success retained in the same population (reproductive success to self-recruitment), reproductive success exported to other subpopulations (reproductive success to local connectivity), and immigration and mortality rates of sub-adults and adults. Approximately 50% of the recruits were assigned to parents from the Kimbe Island population and this was stable through the sampling period. Stability in the proportion of local and immigrant settlers is likely due to: low annual mortality rates and stable egg production rates, and the short larval stages and sensory capacities of reef fish larvae. Biannual mortality rates ranged from 0.09 to 0.55 and varied significantly spatially. We used these data to parametrize a model that estimated the probability of the Kimbe Island population persisting in the absence of immigration. The Kimbe Island population was found to persist without significant immigration. Model results suggest the island population persists because the largest of the subpopulations are maintained due to having low mortality and high self-recruitment rates. Our results enable managers to appropriately target and scale actions to maximize persistence likelihood as disturbance frequencies increase.Citation
Coral reef fish populations can persist without immigration 2015, 282 (1819):20151311 Proceedings of the Royal Society B: Biological SciencesPublisher
The Royal SocietyPubMed ID
26582017ae974a485f413a2113503eed53cd6c53
10.1098/rspb.2015.1311
Scopus Count
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