Index Catalog // ScholarsArchive@OSU

Visual discrimination and memory of Enteroctopus dofleini, the Giant Pacific Octopus

Creator:: Boyle, Virinda R.
Abstract:: This study evaluated the memory and visual discrimination capabilities of Enteroctopus dofleini, the Giant Pacific Octopus. Octopuses have been known to have advance sensory capabilities and through this study we challenged our specimen to remember and actively choose a specific patterned jar based on a visual pattern and positive reinforcement....
Resource Type:: Research Paper

Substrate preference and settlement timing of larval northern rock sole

Creator:: Basilio, Anthony
Abstract:: Keywords: northern rock sole; Lepidopsetta polyxystra; substrate; settlement; larval fish; habitat selection; Chiniak Bay, Kodiak, Alaska
Resource Type:: Research Paper

Skin Deep: An Assessment of New Zealand Blue Whale Skin Condition

Creator:: Barlow, Dawn R., Pepper, Acacia L., and Torres, Leigh G.
Abstract:: Skin condition assessment of wildlife can provide insight into individual and population health. Yet, logistics can limit skin condition assessment of large whales. We developed a standardized, quantitative protocol using photographs to assess skin condition of blue whales in New Zealand, and demonstrate the value gained by testing hypotheses, documenting...
Resource Type:: Article

Site and Light: Looking at factors that affect the growth rate of Saccharina sessilis

Creator:: Beem, Kristin, Meltvedt, Ariana, and Carsh, Alexander
Abstract:: Saccharina sessilis, lettuce kelp, is a macroalgae that contributes to the primary production in the intertidal zone off of the Oregon Coast. Macroalgae can serve as a bioindicator of increased nutrient input, water quality, and shifts in the intertidal environment. Competition for light exists between macroalgae species and with other...
Resource Type:: Research Paper and Presentation

Proposal to Study the host-parasite relationship between upogebia pugettensis and orthione griffenis

Creator:: Smith, Andrew E.
Abstract:: Keywords: Upogebia pugettensis; Orthione griffenis; Yaquina Bay, Oregon; parasite
Resource Type:: Research Paper

Impact of Prophylactic Bacteriophage Addition on Survival of Crassostrea gigas Larvae

Creator:: Schmidt, Sarah
Abstract:: Aquaculture is a continuously growing industry, but rising problems are disease and antibiotic resistance. A common disease-causing pathogen in oyster aquaculture is Vibrio coralliilyticus (Vcor). Vcor infection of oyster larvae causes near 100% mortality within 48 hours, which is devastating to oyster hatcheries. One potential method of controlling Vcor outbreaks...
Resource Type:: Research Paper

Evaluating larval size and survival after probiotic addition in Pacific oyster larvae

Creator:: Grant, Ian
Abstract:: Oysters are a large part of the American aquaculture market, and the oyster farming industry was valued at over 1 billion dollars in 2021. However, oyster farmers often face issues surrounding the mortality rates of their stock. One cause of this is infections caused by Vibrio coralliilyticus (Vcor), a bacterium...
Resource Type:: Honors College Thesis

Estimating harvest rates to assess the efficacy of marine reserves in the Santa Barbara Channel Islands

Creator:: Yamane, Mark T.
Abstract:: Marine protected areas (MPAs) are used in ecosystem-based management (EBM) to increase the abundance and biomass of targeted species and protect their ecosystems by restricting certain human activities. Marine reserves (i.e. no-take MPAs) aim to achieve this by prohibiting harvest in the area. While MPAs are currently evaluated through assessments...
Resource Type:: Research Paper

Diversity and differentiation of mtDNA among humpback whales (Megaptera novaeangliae) on both the tropical feeding grounds and the Antarctic feeding Areas of the South Pacific Ocean

Creator:: Antolik, Caroline
Abstract:: Keywords: Humpback Whale; Megaptera novaeangliae; genetics; mtDNA; breeding stock E; IWC
Resource Type:: Research Paper

Distributions of Dungeness crab (Cancer magister) zoea in the California Current: Closing a life history gap

Creator:: Chin, Andrew
Abstract:: Dungeness crab (Cancer magister) is an important commercial species along the west coast of North America, and its population dynamics are highly influenced by interactions between environmental variability and early life history distribution. However, the distribution of the early larvae stages of Dungeness crab offshore is poorly known. To fill...
Resource Type:: Research Paper

Diet manipulations and color changes in Pisaster ochraceus

Creator:: Taylor, Katlyn R.
Abstract:: It has been observed and documented that Pisaster ochraceus has very striking colors, but the reasons behind the coloration are still unknown. Three coloration categories were determined and used for a feeding trial study to investigate the effects of diet on coloration in Pisaster ochraceus. This study involved 30 hand...
Resource Type:: Research Paper

Development of Sex Markers for Rockfishes, Sebastes, inhabiting the Northeast Pacific Ocean

Creator:: Aycock, Hannah
Abstract:: Rockfishes (Sebastes) are important species for commercial and recreational fishing, as well as evolutionary and ecological research. It can be impractical to identify the sex of rockfishes using visual identification or lethal dissection, and the sex-determination systems of these species have not been studied extensively. The aim of this research...
Resource Type:: Research Paper

Cryptoniscans don't go straight home

Creator:: Crooks, Katherine E.
Resource Type:: Presentation

Coralline and fleshy algae volume density on epifaunal communities

Creator:: Field, Samuel J. and Gani, Christopher D.
Abstract:: Carbon dioxide emissions greatly affect the carbon chemistry mechanisms within the ocean. Carbon absorbed by the ocean, drops the pH level and creates an environment that is acidic. Acidic conditions prevent calcification mechanisms in coralline algae, and hinder their ability to establish within the intertidal. Coralline algae display structural relevance...
Resource Type:: Research Paper

Comparing Metacarcinus magister settlement preferences among the seagrasses Zostera marina and Zostera japonica

Creator:: Heidmann, Sarah and Jaco, Erin
Abstract:: Metacarcinus magister, the Dungeness crab, is a commercially important species on the Pacific Northwest coast as the most profitable fishery in Oregon and an important ecological player as both predator and prey. Understanding the spatial distribution of Dungeness throughout different life history stages is beneficial both ecologically and economically. Zostera...
Resource Type:: Research Paper

Comparing Metacarcinus magister settlement preferences among the seagrasses Z. marina and Z. japonica

Creator:: Jaco, Erin M. and Heidmann, Sarah
Abstract:: Metacarcinus magister, the Dungeness crab, is a commercially important species on the Pacific Northwest coast as the most profitable fishery in Oregon and an important ecological player as both predator and prey. Understanding the spatial distribution of Dungeness throughout different life history stages is beneficial both ecologically and economically. Zostera...
Resource Type:: Research Paper

Analysis of Northeast Pacific cores EW9504-12PC and EW9504-13PC using (40)Ar-(39)Ar dating, paleomagnetics, CaCO3 extraction, and radiolaria marker methods to determine glacial/interglacial influences in response to geographic location

Creator:: Caver, Leah J.
Abstract:: Keywords: EW9504-12PC; EW9504-13PC; 40Ar-39Ar; paleomagnetics; calcium carbonate; CaCO3; Argon-Argon dating; climate variability; Ceratospyris borealis; Stylatractus universus
Resource Type:: Research Paper

ScholarsArchive@OSU

Visual discrimination and memory of Enteroctopus dofleini, the Giant Pacific Octopus

Substrate preference and settlement timing of larval northern rock sole

Skin Deep: An Assessment of New Zealand Blue Whale Skin Condition

Site and Light: Looking at factors that affect the growth rate of Saccharina sessilis

Proposal to Study the host-parasite relationship between upogebia pugettensis and orthione griffenis

Impact of Prophylactic Bacteriophage Addition on Survival of Crassostrea gigas Larvae

Evaluating larval size and survival after probiotic addition in Pacific oyster larvae

Estimating harvest rates to assess the efficacy of marine reserves in the Santa Barbara Channel Islands

Diversity and differentiation of mtDNA among humpback whales (Megaptera novaeangliae) on both the tropical feeding grounds and the Antarctic feeding Areas of the South Pacific Ocean

Distributions of Dungeness crab (Cancer magister) zoea in the California Current: Closing a life history gap

Diet manipulations and color changes in Pisaster ochraceus

Development of Sex Markers for Rockfishes, Sebastes, inhabiting the Northeast Pacific Ocean

Cryptoniscans don't go straight home

Coralline and fleshy algae volume density on epifaunal communities

Comparing Metacarcinus magister settlement preferences among the seagrasses Zostera marina and Zostera japonica

Comparing Metacarcinus magister settlement preferences among the seagrasses Z. marina and Z. japonica

Analysis of Northeast Pacific cores EW9504-12PC and EW9504-13PC using (40)Ar-(39)Ar dating, paleomagnetics, CaCO3 extraction, and radiolaria marker methods to determine glacial/interglacial influences in response to geographic location

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