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dc.contributor.advisorWeil, Ernesto F.
dc.contributor.authorSoto Rodriguez, Derek A.
dc.date.accessioned2018-11-10T13:33:38Z
dc.date.available2018-11-10T13:33:38Z
dc.date.issued2014
dc.identifier.urihttps://hdl.handle.net/20.500.11801/1122
dc.description.abstractThe sexual pattern, reproductive mode, and timing of reproduction of Isophyllia sinuosa and Isophyllia rigida, two small Caribbean Mussids, were assessed by histological analysis of specimens collected monthly during 2000-2001 and 2012. Tissue cores were fixed in Helly’s Zenker formalin solution, decalcified in 10% HCl, dehydrated in 70% EtOH, embedded in Paraplast, sectioned with a rotary microtome, and stained utilizing a modified Heidenhain’s Azocarmine-Aniline blue method. Results indicate that both species are simultaneous hermaphroditic brooders, with a single annual gametogenetic cycle. Spermatocytes and oocytes of different stages were found within the same mesentery indicating possible sequential maturation for extended planulation. Oocytes begin development in May in I. sinuosa and August in I. rigida, approximately 7 months prior to spermatocytes, but matured simultaneously over at least two months; May-June in I.rigida and March-April in I. sinuosa. Significantly higher polyp (IR=33.16±4.44, IS=3.78±6.42) (t-test, p<0.001) and mesenterial fecundity (IR=2.76±4.44, IS=0.87±1.92) (t-test, p=0.046) was found in I. rigida compared to I. sinuosa. Planulation proceeded rapidly in both species with planulae observed in I. sinuosa during April through May and in I. rigida from June through September. Hermaphroditism and brooding have also been documented in the Mussid genera Scolymia and Mycetophyllia.en_US
dc.description.abstractEl patrón sexual, modo reproductivo y sincronización de la reproducción se estudió en dos Musidos Caribeños, Isophyllia sinuosa e Isophyllia rigida, Se hicieron análisis histológicos de tejidos colectados mensualmente durante los años 2000-2001 y 2012. Muestras fueron fijadas en solución de formalina Helly’s Zenker, decalcificadas en ácido clorhídrico 10%, deshidratadas en etanol 70%, fijadas en bloques de parafina, seccionadas en un micrótomo rotativo y teñidas utilizando la tinción modificada Heidenhain’s Azocarmine Aniline Blue. Resultados indican que ambas especies son hermafroditas simultaneas y planuladoras, con un ciclo gametogénico anual. Espermarios y huevos en diferentes estadios de madurez fueron observados simultáneamente en los mesenterios, indicando un proceso de maduración secuencial para una planulación extendida. Los huevos comienzan su desarrollo unos 7 meses antes que los espermarios; mayo en I. sinuosa y en agosto en I. rigida. Ambos sexos alcanzaron su madurez simultáneamente; en mayo-junio en I. rigida y en marzo-abril en I. sinuosa. La fecundidad polipal (IR=33.16±4.44, IS=3.78±6.42) (t-test, p<0.001) y mesenterial (IR=2.76±4.44, IS=0.87±1.92) (t-test, p=0.046) fue significativamente mayor en I. rigida comparada con I. sinuosa. La maduración de plánulas procedió rápidamente en ambas especies; plánulas fueron observadas en I. sinuosa durante abril hasta mayo y en I. rigida desde junio hasta septiembre. El hermafroditismo y la planulación se han documentado en los géneros Musidos Scolymia y Mycetophyllia.en_US
dc.description.sponsorshipGrants from Sea Grant (R-101-1-98), NOAA Coastal Ocean Program (NA17OP2919), the Caribbean Coral Reef Institute and NSF (IOS 1017510)en_US
dc.language.isoenen_US
dc.subjectIsophyllia sinuosa-Reproductionen_US
dc.subjectIsophyllia rigida--Reproductionen_US
dc.subjectAnimal hermaphroditism--Reproductionen_US
dc.subject.lcshScleractinia -- Reproductionen_US
dc.subject.lcshScleractinia -- Puerto Ricoen_US
dc.subject.lcshScleractinia -- Histologyen_US
dc.subject.lcshCorals -- La Parguera (P.R.)en_US
dc.subject.lcshIntersexuality in animalsen_US
dc.titleSexual reproduction in the Caribbean Coral Genera Isophyllia and Isophyllastrea, in La Parguera, Puerto Ricoen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2014 Derek A. Soto Rodriguezen_US
dc.contributor.committeeSchizas, Nikolaos V.
dc.contributor.committeeYoshioka, Paul M.
dc.contributor.committeeCorredor, Jorge E.
dc.contributor.representativePratt, Ellen
thesis.degree.levelM.S.en_US
thesis.degree.disciplineMarine Sciencesen_US
dc.contributor.collegeCollege of Arts and Sciences - Sciencesen_US
dc.contributor.departmentDepartment of Marine Sciencesen_US
dc.description.graduationSemesterSpringen_US
dc.description.graduationYear2014en_US


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