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Characteristics of Settling Coral Reef Fish Are Related to Recruitment Timing and Success

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Title Characteristics of Settling Coral Reef Fish Are Related to Recruitment Timing and Success
Names Rankin, Tauna L. (creator)
Sponaugle, Su (creator)
Date Issued 2014-09-24 (iso8601)
Note To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article was published by the Public Library of Science and is in the public domain. The published article can be found at: http://www.plosone.org/. Supporting Information can be found at: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0108871#s5.
Abstract Many marine populations exhibit high variability in the recruitment of young into the population. While environmental
cycles and oceanography explain some patterns of replenishment, the role of other growth-related processes in influencing
settlement and recruitment is less clear. Examination of a 65-mo. time series of recruitment of a common coral reef fish,
Stegastes partitus, to the reefs of the upper Florida Keys revealed that during peak recruitment months, settlement stage
larvae arriving during dark lunar phases grew faster as larvae and were larger at settlement compared to those settling
during the light lunar phases. However, the strength and direction of early trait-mediated selective mortality also varied by
settlement lunar phase such that the early life history traits of 2–4 week old recruit survivors that settled across the lunar
cycle converged to more similar values. Similarly, within peak settlement periods, early life history traits of settling larvae
and selective mortality of recruits varied by the magnitude of the settlement event: larvae settling in larger events had
longer PLDs and consequently were larger at settlement than those settling in smaller pulses. Traits also varied by
recruitment habitat: recruits surviving in live coral habitat (vs rubble) or areas with higher densities of adult conspecifics
were those that were larger at settlement. Reef habitats, especially those with high densities of territorial conspecifics, are
more challenging habitats for young fish to occupy and small settlers (due to lower larval growth and/or shorter PLDs) to
these habitats have a lower chance of survival than they do in rubble habitats. Settling reef fish are not all equal and the
time and location of settlement influences the likelihood that individuals will survive to contribute to the population.
Genre Article
Access Condition http://creativecommons.org/publicdomain/zero/1.0/
Identifier Rankin, T. L., Sponaugle, S. (2014). Characteristics of Settling Coral Reef Fish Are Related to Recruitment Timing and Success. PLoS ONE, 9(9), e108871. doi:10.1371/journal.pone.0108871

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