Index Catalog // ScholarsArchive@OSU

The Effects of Artificial Structures on Estuarine Infaunal Communities and Offshore Biofouling Communities

Creator:: Mendoza, Maritza
Abstract:: For hundreds of years, coastal and marine ecosystems have experienced increasing threats due to the cumulative effects of increasing population growth and dependence on these ecosystems. Thus, there has been increased enthusiasm to mitigate the negative effects of human actions through the use of cleaner sources of energy, like marine...
Resource Type:: Masters Thesis
Full Text:: , Scott Heppell and Scott Marion, were also incredibly receptive to the changes that occurred with my

Effects of Elevated CO₂ on Speckled Sanddab (Citharichthys stigmaeus) Behavior

Creator:: Andrade, Jessica F.
Abstract:: The direct and indirect effects of ocean acidification (OA) are a growing concern, particularly in areas already experiencing elevated levels of oceanic CO₂. Studies with marine fishes suggest that elevated CO₂ levels may affect behavior by interfering with an important brain neurotransmitter. Studies examining the effects of OA fish behavior...
Resource Type:: Masters Thesis
Full Text:: would like to thank Dr. Scott Heppell for remaining on my committee when we mutually decided I needed

Detection, classification and ecology of acoustic scattering layers

Creator:: Cade, David Edmund
Abstract:: Acoustic scattering layers of biological origin have been observed for nearly 70 years across the world’s oceans. The organisms that comprise these layers are known to be important features in most oceanic ecosystems, providing a vital trophic link between small phytoplankton grazers and larger species. There are many aspects of...
Resource Type:: Masters Thesis
Full Text:: . My thesis committee: Emily Shroyer, Scott Heppell and John Gardner for their thoughtful comments

Salmon Management in Southeast Alaska: An Examination of Multi-Dimensional Management

Creator:: Chrittenden, Whitney L.
Abstract:: Pacific salmon are culturally and economically important species to Southeast Alaska, where there is a history of large wild runs and supplemental production from hatchery programs. Salmon management in Alaska is divided amongst various governmental agencies. Non-governmental organizations also play a pivotal role in salmon management. To fulfill the requirements...
Resource Type:: Capstone Project
Full Text:: economically important species to Southeast Alaska, where there is a history of large wild runs and

Stress induced differential gene expression in the brain of juvenile steelhead trout, (Oncorhynchus Mykiss)

Creator:: Schwindt, Adam R.
Abstract:: Gene expression profiles of tissues and cell-lines can be powerful tools for documenting the genetic response to a particular treatment, such as stressors. However, there is a paucity of information on the genetic stress response in the brain. Therefore, we attempted to profile gene expression in the brain of juvenile...
Resource Type:: Masters Thesis
Full Text:: BLAST results; and Dr. Scott A. Heppell, for assistance with interpretation and trouble shooting of

Aspects of the early life history of juvenile salmonids in the Dungeness River Estuary

Creator:: Sather, Nichole K.
Abstract:: The decline of many Pacific salmon stocks has stimulated interest in the early life history and habitat requirements of juvenile salmon. Although estuarine habitat associations of juvenile salmon have been investigated in many coastal areas of the eastern Pacific Ocean, until recently, little was known about juvenile salmonid ecology within...
Resource Type:: Masters Thesis
Full Text:: members Dan Bottom and Dr. Scott Heppell for providing insightful comments and advise throughout the

Behavior and Ecological Effects of Invasive Lionfish on Atlantic Coral Reefs and Seagrass Beds

Creator:: Benkwitt, Cassandra E.
Abstract:: Although only a minority of introduced species become established and have noticeable consequences in their new communities, some can displace native species, alter food webs, and cause local extinctions. Studying these invasive species can provide new insights into basic ecological questions as well as inform management strategies. Pacific lionfish (Pterois...
Resource Type:: Dissertation
Full Text:: Heppell, Scott Heppell, Lisa Madsen, and Bruce Menge. Selina has encouraged me to use different methods

Indirect effects of fishing on predators and their prey

Creator:: Stallings, Christopher Derek
Abstract:: Predators are fundamentally important for regulating and driving prey population dynamics as well as structuring ecological communities. Over-exploitation of marine resources has caused dramatic depletions of predatory fish species and shifts in marine community composition, with attendant declines in productivity and diversity of marine ecosystems. Despite the important ramifications of...
Resource Type:: Dissertation
Full Text:: committee (in alphabetical order) for their advice and time. Scott Heppell served as my graduate

Aboveground biomass and ecosystem carbon pools in tropical secondary forests growing in six life zones of Costa Rica

Creator:: Cifuentes Jara, Miguel
Abstract:: Carbon sequestration in tropical secondary forests growing in all climates must be quantified to understand their potential role in adaptation and mitigation strategies of global climate change. Total aboveground biomass (TAGB), soil carbon, and total ecosystem carbon (TEC) were measured in 54 secondary forests growing along a broad bioclimatic gradient...
Resource Type:: Dissertation
Full Text:: of my committee, Drs. Mark E. Harmon, Scott A. Heppell, Steven S. Perakis, and Richard H. Waring

Physical Climate Variables Associated with California Current Large Marine Ecosystem and Implications in Recreational Fisheries Management

Creator:: Miller, Tiffany A.
Abstract:: Climate variations within the California Current Large Marine Ecosystem (CCLME) have impacts on marine fish populations. It is proposed that these impacts will be reflected in recreational fishing catches which is explored in this study. A Pearson correlation analysis compares data from El Niño Southern Oscillation (ENSO) events and upwelling...
Resource Type:: Capstone Project
Full Text:: help and encouragement. I would also like to thank Scott Heppell and Grant Thompson, my committee

ScholarsArchive@OSU

The Effects of Artificial Structures on Estuarine Infaunal Communities and Offshore Biofouling Communities

Effects of Elevated CO₂ on Speckled Sanddab (Citharichthys stigmaeus) Behavior

Detection, classification and ecology of acoustic scattering layers

Salmon Management in Southeast Alaska: An Examination of Multi-Dimensional Management

Stress induced differential gene expression in the brain of juvenile steelhead trout, (Oncorhynchus Mykiss)

Aspects of the early life history of juvenile salmonids in the Dungeness River Estuary

Behavior and Ecological Effects of Invasive Lionfish on Atlantic Coral Reefs and Seagrass Beds

Indirect effects of fishing on predators and their prey

Aboveground biomass and ecosystem carbon pools in tropical secondary forests growing in six life zones of Costa Rica

Physical Climate Variables Associated with California Current Large Marine Ecosystem and Implications in Recreational Fisheries Management

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