Coral settlement and post-settlement processes occurring from the time the corals settle to their recruitment determines much of coral population demographics, reef structure, and function. However, the settlement and the survival rate of corals after settling in the Eastern Tropical Pacific (ETP) area are scarcely known. With the aid of a fluorescent lamp, we evaluated the spatial and temporal settlement and post-settlement coral mortality in coral communities and reefs located in the South Mexican Pacific (SMP), using settlement tiles evaluated approximately monthly over a two-year period. No Pocillopora spp. or Pavona spp. were recruited to the tiles, while Porites panamensis settled at lower rates as compared to previous studies in the SMP, which is likely related to the strong El Niño Southern Oscillation anomaly recorded during 2010–2011. During September 2010 and January 2011, P. panamensis settled on the tiles at the highest rate in some locations, suggesting that larval supply and/or environmental conditions affecting settlement in the area varies considerably across space and time. Overall, P. panamensis recruits died at variable rate, ranging from 20% to 100% (∼1.64% per day) during the first 50 days after settling to a substrate. The sizes of the coral spats as well as recruit survival increased significantly throughout time in the area. The null settlement rate of Pocillopora spp. and Pavona spp. compared to P. panamensis is consistent with life history trade-offs, whereas P. panamensis is a better colonizing species and Pocillopora spp. is a better competitor. These factors may allow Pocillopora spp. to outlast P. panamensis, thus becoming the dominant frame-building coral in the SMP and elsewhere in the ETP.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 73 • No. 4