Dissertation/Thesis Abstract

Impacts of Paired Olympia Oyster (Ostrea lurida) and Eelgrass (Zostera marina) Restoration on Fish and Infaunal Communities in Upper Newport Bay, California
by Howard, Marjorie, M.S., California State University, Long Beach, 2019, 147; 13902916
Abstract (Summary)

Losses of diversity from wetland habitat decline may be counteracted via habitat restoration using a living shoreline design. This study assesses paired oyster and seagrass restoration through response of fish and infaunal invertebrates. Olympia oysters (Ostrea lurida) and eelgrass (Zostera marina) were restored, separately and paired, at four sites in Newport Bay, CA. Infauna were monitored via sediment cores pre- and post-restoration. Fish were sampled using baited camera traps and quadrats. I predicted infaunal losses would occur directly beneath oyster beds, but that eelgrass would enhance infaunal communities, offsetting this decrease in paired habitats. I expected greater fish abundance and diversity within restored habitats. Predicted infaunal diebacks were observed only beneath oyster beds. Significant infaunal shifts, including increased species richness, were observed within eelgrass beds, suggesting benefits of paired restoration. Unique fish species were observed within each restoration treatment, highlighting the ecological value of each habitat’s presence in restored wetlands.

Indexing (document details)
Advisor: Whitcraft, Christine R
Commitee: Zacherl, Danielle C, Lowe, Christopher G
School: California State University, Long Beach
Department: Biological Sciences
School Location: United States -- California
Source: MAI 81/4(E), Masters Abstracts International
Subjects: Biology, Ecology, Environmental science
Keywords: Baited video monitoring, Benthic macrofauna, Eelgrass, Living shorelines, Olympia oysters, Wetland restoration
Publication Number: 13902916
ISBN: 9781687913111
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