Show simple item record

dc.contributor.advisorGarcía Saís, Jorge R.
dc.contributor.authorCaraballo Marrero, Amaris N.
dc.date.accessioned2018-12-15T11:41:44Z
dc.date.available2018-12-15T11:41:44Z
dc.date.issued2009-12
dc.identifier.urihttps://hdl.handle.net/20.500.11801/1619
dc.description.abstractThe purpose of this study was to examine the influence of different benthic habitats in the taxonomic composition and abundance of demersal zooplankton in the coral reef systems of La Parguera. Two techniques were used to sample zooplankton abundance; horizontal plankton tows between surface and near bottom and demersal traps for substrate sampling. Sampling of zooplankton abundance was performed from October 2005 to December 2006. Significant differences of total zooplankton abundance in neuston samples between surface and near bottom were found; the higher abundance of organisms was found in near bottom of Thalassia beds. Calanoid copepods were the main component of the near bottom samples. Differences of total zooplankton and holoplankton abundance revealed lunar pattern in night samples with higher abundance in new moon at sandy substrates. A pronounced pattern of higher abundance of holoplankton taxa in night samples was observed at Thalassia beds and sandy substrates, with peak abundances measured in Thalassia beds. Results of the present study indicate that the abundance or emerging zooplankters varied in relation to time of day, and substratum. The demersal zooplanktons are an important link between seagrass meadows and adjoining coral reef communities as well.en_US
dc.description.abstractEl propósito de este estudio fue proveer una caracterización taxonómica del zooplancton demersal y examinar los patrones de migración vertical en el hábitat marino de las praderas marinas y los sustratos de arena en Cayo Conserva, La Parguera, Lajas, Puerto Rico. Se aplicaron dos técnicas de muestreo para la abundancia del zooplancton; arrastres horizontales con red neuston entre superficie y fondo, y trampas demersales para el muestreo de sustrato. El muestreo se realizó de octubre 2005 a diciembre de 2006. Se encontraron diferencias significativas en abundancia entre superficie y fondo, la mayor abundancia de organismos se encontró en el fondo, cerca de las praderas de Thalassia. Los copépodos calanoides fueron el grupo dominante numéricamente. Las diferencias de abundancia del zooplancton total y holoplancton revelaron patrones lunares en las muestras tomadas de noche con mayor abundancia en luna nueva en el substrato arenoso. Se encontró además mayor abundancia de holoplancton en las muestras nocturnas que en las diurnas tanto en sustrato de Thalassia y arena. Las mayores abundancias se midieron en fondo de Thalassia. Los resultados de este estudio indican que existe un patrón de migración vertical asociado al zooplancton demersal, el cual refleja mayores abundancias durante la noche. El tipo de hábitat béntico resulto ser importante en la composición taxonómica y abundancia del zooplancton demersal, siendo en fondo de Thalassia donde mayores mediciones de zooplancton fueron encontrados.en_US
dc.description.sponsorshipPlankton Laboratory at Isla Magueyesen_US
dc.language.isoenen_US
dc.subjectDemersal zooplankton - Benthic habitats - Reserva Natural de La Parguera (P.R.)en_US
dc.subjectDemersal zooplankton - Seagrass meadows - Effect ofen_US
dc.subjectCalanoid copepodsen_US
dc.subject.lcshMarine zooplankton -- Puerto Rico -- Lajas -- La Pargueraen_US
dc.subject.lcshBenthosen_US
dc.subject.lcshZooplanktonen_US
dc.subject.lcshCoral reef ecology -- Puerto Rico -- Lajas -- La Pargueraen_US
dc.titleTaxonomic composition and abundance of demersal zooplankton associated to seagrass and sandy substrates of a coral reef environmenten_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2009 Amaris N. Caraballo Marreroen_US
dc.contributor.committeeAlfaro, Monica
dc.contributor.committeeCorredor, Jorge
dc.contributor.committeeAponte, Nilda E.
dc.contributor.representativeGrove, Kurt
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.graduationSemesterFallen_US
dc.description.graduationYear2009en_US


Files in this item

Thumbnail

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