Show simple item record

dc.contributor.advisorWeil, Ernesto F.
dc.contributor.authorMorales-Tirado, José A.
dc.description.abstractSexual reproduction is the most important process in the life history of corals because it provides the genetic variability to survive in changing environments. There is a lack of information about the reproductive biology in Caribbean corals. The aims of this study were to corroborate the available information about Mycetophyllia ferox and describe the sexual pattern, mode of development, the timing of the gametogenetic cycle, brooding season, reproductive traits and fecundity of M. aliciae, M. lamarckiana and M. danaana. Tissue samples of each species were collected for 14 months, fixed in Helly`s solution, decalcified in 10% HCl, dehydrated with EtOH, embedded in paraplast, and stained. Histological analysis revealed that Mycetophyllia species are simultaneous-hermaphrodites, with internal development of larvae, one gametogenetic cycle per year and different brooding seasons. Gametes maturation in Mycetophyllia species showed synchrony with the moon phase, water temperature rise, and light periods. Mycetophyllia aliciae showed significant higher mesenterial fecundity and M. ferox the lowest mesenterial fecundity.en_US
dc.description.abstractLa reproducción sexual es el proceso más importante en el ciclo de vida de los corales, ya que provee variación genética para sobrevivir cambios ambientales. La información sobre la biología reproductiva de los corales en el Caribe es limitada. Los objetivos de este estudio fueron corroborar la información acerca de Mycetophyllia ferox y describir el patrón sexual, modo de desarrollo, duración del ciclo gametogenético, tiempo de planulación, estrategias reproductivas y fecundidad de M. aliciae, M. lamarckiana and M. danaana. Muestras de tejido de cada especie fueron colectadas por 14 meses, fijadas en solución Helly`s, decalcificadas en HCl 10%, deshidratadas en etanol, incrustadas en paraplasto y teñidas. El análisis histológico reveló que estas especies son hermafroditas-simultáneas, con desarrollo interno de larvas, tienen un ciclo gametogenético anual y diferentes periodos de planulación. La maduración de los gametos mostró sincronía con la fase lunar, aumento de temperatura y periodos de luz. Mycetophyllia aliciae mostró fecundidad mesenterial significativamente mayor y M. ferox menor fecundidad mesenterial.en_US
dc.description.sponsorshipMarine Sciences Department; Sea Grant Program; Chemical Department UPRM; CRES Projecten_US
dc.subjectMycetophyllia - Reproduction - Puerto Ricoen_US
dc.subjectGametogenesis - Corals - Puerto Ricoen_US
dc.subjectMycetophyllia - Ecologyen_US
dc.titleSexual reproduction in the Caribbean coral genus Mycetophyllia, in la Parguera, Puerto Ricoen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2006 José Antonio Morales Tiradoen_US
dc.contributor.committeeAponte, Nilda E.
dc.contributor.committeeYoshioka, Paul M.
dc.contributor.representativeMari Mutt, José Sciencesen_US
dc.contributor.collegeCollege of Arts and Sciences - Sciencesen_US
dc.contributor.departmentDepartment of Marine Sciencesen_US

Files in this item


This item appears in the following Collection(s)

  • Theses & Dissertations
    Items included under this collection are theses, dissertations, and project reports submitted as a requirement for completing a degree at UPR-Mayagüez.

Show simple item record

All rights reserved
Except where otherwise noted, this item's license is described as All Rights Reserved