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RECRUITMENT AND SYMBIONT INTERACTIONS IN ANTHROPOGENICALLY ALTERED HABITATS: THE PORIFERA OF MAUNALUA BAY, OʻAHU

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Title:RECRUITMENT AND SYMBIONT INTERACTIONS IN ANTHROPOGENICALLY ALTERED HABITATS: THE PORIFERA OF MAUNALUA BAY, OʻAHU
Authors:Wallstrom, Michael Allen
Contributors:Reed, Floyd A. (advisor)
Zoology (department)
Keywords:Zoology
Biology
Ecology
Climate change
cyanobacteria
show 3 moreinvasive species
marine ecosystems
sponges
show less
Date Issued:2020
Publisher:University of Hawai'i at Manoa
Abstract:Marine ecosystems around the world are affected by anthropogenically-induced disturbances, impacting the competition for benthic space by sessile invertebrates. To investigate the recruitment of Porifera in Maunalua Bay, Oʻahu, Hawaiʻi, Porifera abundances were compared to two earlier studies, Coles et al. (2002) and Longenecker et al. (2011), to understand changes through time. Cyanobacterial symbiont interactions were tested by determining chlorophyll concentration in the sponge holobiont. There has been a significant increase in Porifera since 2011 and Porifera are now more prevalent in areas where the invasive alga, Gracilaria salicornia, is dominant compared to nearby native sea grass beds. Recruitment of Porifera to the invasive algal mats was not explained by resource partitioning facilitated by cyanobacterial symbionts. Over time and through successional regimes, endemic, native, and non-native Porifera have become established in invasive algal mats and the new niche space that they provide.
Pages/Duration:29 pages
URI:http://hdl.handle.net/10125/73392
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections: M.S. - Zoology


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