Trophic Ecology of Nearshore Soft-Sediment Communities around O'ahu, Hawai'i

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dc.contributor.authorLin, David
dc.date.accessioned2017-12-18T21:37:21Z
dc.date.available2017-12-18T21:37:21Z
dc.date.issued2015-12
dc.descriptionPh.D. University of Hawaii at Manoa 2015.
dc.descriptionIncludes bibliographical references.
dc.description.abstractCoastal and nearshore marine ecosystems are increasingly under threat from anthropogenic stressors such as overfishing, nutrient enrichment, exotic species invasions and habitat degradation. The original research in this dissertation examines the independent and interactive effects of “top-down” predator reduction and “bottom-up” nutrient enrichment on tropical marine soft-sediment communities. Marine soft sediments represent the largest habitat type on Earth and serve as crucial feeding grounds for many commercially important species. This dissertation discusses changes in benthic microalgal (Chapter 2) and infaunal invertebrate communities (Chapter 3) during a series of manipulative field experiments. It features the latest stable isotope mixing methods used to examine the diets of infaunal primary consumers (Chapter 4). Lastly, this dissertation presents the results of a long-term observational study monitoring the bottom-up effects of nutrient addition and cessation from an open-ocean commercial fish farm (Chapter 5). The research described in this dissertation was conducted off Waimanalo and Ewa Beach, O‘ahu, Hawai‘i and offers valuable insights into ecological processes in other unvegetated sandy bottom systems.
dc.identifier.urihttp://hdl.handle.net/10125/51212
dc.language.isoeng
dc.publisher[Honolulu] : [University of Hawaii at Manoa], [December 2015]
dc.relationTheses for the degree of Doctor of Philosophy (University of Hawaii at Manoa). Zoology
dc.subjectsoft-sediment
dc.subjectinfauna
dc.subjecttrophic cascade
dc.subjectmicroalgae
dc.subjectbenthic
dc.subjectstable isotope
dc.titleTrophic Ecology of Nearshore Soft-Sediment Communities around O'ahu, Hawai'i
dc.typeThesis
dc.type.dcmiText

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