Dissertation/Thesis Abstract

Understanding Habitat Connectivity between a Fully Tidal Bay and a Tidally Restricted Urban Lagoon
by Burdick-Whipp, Molly K., M.S., California State University, Long Beach, 2018, 134; 10825622
Abstract (Summary)

Culverts are ubiquitous in urban and natural environments, installed to provide road access and erosion control, but often impact fish movements in freshwater habitats. Effects of culverts on marine and estuarine fish are not well-studied. This study aimed to understand the potential impacts of a culvert, which connects a large tidal bay and a coastal lagoon, on the movements of several species of fish. Habitat characteristics of both sites were analyzed to better understand these movements, including water parameters, sediment characteristics, and zooplankton, benthic macroinvertebrate, and small fish communities. The two habitats differed in terms of temperature, salinity, dissolved oxygen, zooplankton abundance, and community composition of zooplankton, benthic macroinvertebrates, and small fish. The culvert and associated grate limited large fish from moving between the two habitats likely due to body size and other morphological characteristics. Removing this barrier and replacing it with an open channel would increase connectivity between these two habitats which could improve trophic quality in the lagoon habitat and increase functionality overall.

Indexing (document details)
Advisor: Whitcraft, Christine R., Lowe, Christopher G.
Commitee: Allen, Bengt J.
School: California State University, Long Beach
Department: Biological Sciences
School Location: United States -- California
Source: MAI 58/01M(E), Masters Abstracts International
Source Type: DISSERTATION
Subjects: Biology, Ecology, Conservation biology
Keywords: Coastal wetland, Culverts, Habitat connectivity, Pit tags
Publication Number: 10825622
ISBN: 9780438328310
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