Index Catalog // ScholarsArchive@OSU

Age, growth and maturity of the longnose skate (Raja rhina) for the U.S. west coast and sensitivity to fishing impacts

Creator:: Thompson, Josie E.
Abstract:: In the past, sharks, skates and ray species have mainly occurred in incidental fisheries. Now they are increasingly being directly targeted due to the depleted status of traditionally targeted species. The life history characteristics of many elasmobranch species make them more sensitive to high rates of fishing mortality. The combination...
Resource Type:: Masters Thesis
Full Text:: , and Douglas Markle for sharing his knowledge of fish life history. Keith Bosley and Victor Simon

Giant otters (Pteronura brasiliensis) and humans in the lower Yasuní Basin, Ecuador : spacio-temporal activity patterns and their relevance for conservation

Creator:: Carrera-Ubidia, Paola M.
Abstract:: Giant otters (Pteronura brasiliensis) and humans in the Lower Yasuní Basin (Ecuador) have similar food and space requirements: they consume comparable arrays of fish species, and they use similar aquatic and terrestrial habitats. Resource partitioning could facilitate coexistence by allowing each species exclusive access to some resources. My research examines...
Resource Type:: Masters Thesis
Full Text:: committee members, Drs. Douglas Markle and Mary Santelmann for their support and contribution with many

Determination of marine migratory behavior and its relationship to selected physical traits for least cisco (Coregonus sardinella) of the western Arctic coastal plain, Alaska

Creator:: Seigle, John C.
Abstract:: With increased resource development on the western Arctic coastal plain of Alaska (especially within the oil extraction industry) it is important to understand the basic life history attributes of whitefish stocks in the region in order to ensure appropriate management. These fish are a crucial part of subsistence harvests for...
Resource Type:: Masters Thesis

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

Creator:: Huie, Jessica L.
Abstract:: Social behavior leading to the production of common goods is prone to exploitation. One such behavior in Pseudomonas aeruginosa is quorum sensing (QS), by which the bacteria produce signals to regulate extracellular common goods. Exploitation comes in the form of cheaters which have a mutation in the central quorum sensing...
Resource Type:: Masters Thesis

Assessment of black vine weevil larval damage to cranberries and development of alternative control strategies

Creator:: Miller, Elizabeth A. (Elizabeth Ann)
Abstract:: Black vine weevil (BVW), Otiorhynchus sulcatus Fabricius, is a serious pest in cranberry, Vaccinium macrocarpon. Larvae feeding below the soil surface cause damage to the roots and underground stems. Knowledge is sparse in regard to the damage potential of BVW in Pacific Northwest cranberry beds. Control with insecticides is limited...
Resource Type:: Masters Thesis

The influence of primary children's ideas in science on teaching practice

Creator:: Dickinson, Valarie L.
Abstract:: A large body of research has examined how children enter the science classroom with previously formed ideas about the content they will learn. These ideas influence how the child interprets instruction. This study reversed the investigative focus by exploring how children's ideas in science influence teaching. Specifically, the study examined...
Resource Type:: Dissertation

Development of a progeny marker for steelhead

Creator:: Shippentower, Gene E.
Abstract:: This study was undertaken to determine if strontium chloride could be used to create a trans-generational otolith mark in steelhead (Oncorhynchus mykiss). I completed two strontium injection trials and a survey of juvenile steelhead from various steelhead hatcheries. The two trials measured Sr:Ca ratios in otoliths in response to injections...
Resource Type:: Masters Thesis
Full Text:: . Douglas Markle and Dr. Roger Nielsen for providing assistance during my graduate work. I would like

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

Creator:: Heck, Michael P.
Abstract:: Wildfire is a largely terrestrial perturbation broadly recognized as an agent of disturbance and ecological change in forested biomes. Effects of post-fire conditions on biotic components of aquatic systems have been less well-documented, although hypothetically, the two are strongly connected. In fact, the influence of wildfire may be most profound...
Resource Type:: Masters Thesis
Full Text:: following people were invaluable to this project: Bob Gresswell, Doug Bateman, Gary Larson, Doug Markle

Design, assessment, and future implications of the Multiple Enzyme Analyzer (MEA), a tool for in-situ monitoring of marine microbial activity

Creator:: Jaeger, Stephanie A.
Abstract:: The microbial loop plays a crucial role in remineralization of organic matter and fuels recycled production in the aquatic environment. The capability of microbes to utilize particular compounds can be examined through their ectoenzyme (found outside the cell) activities using fluorogenic substrate analogs. These catalysts hydrolyze polymers otherwise too large...
Resource Type:: Masters Thesis
Full Text:: assistance, and Dr. Douglas Markle for serving as my graduate council representative. A number of

Responses of foothill yellow-legged frog (Rana boylii) larvae to an introduced predator

Creator:: Paoletti, David J.
Abstract:: The consequences of species introductions into non-native habitats are a major cause of concern in the U.S. An introduced species may alter native habitats, cause economic damage, compete with natives for resources or prey on them. Of particular interest are the effects of predation by introduced fishes on native amphibians....
Resource Type:: Masters Thesis
Full Text:: and trust throughout this endeavor. I would also like to extend my thanks to Dr. Doug Markle for

ScholarsArchive@OSU

Age, growth and maturity of the longnose skate (Raja rhina) for the U.S. west coast and sensitivity to fishing impacts

Giant otters (Pteronura brasiliensis) and humans in the lower Yasuní Basin, Ecuador : spacio-temporal activity patterns and their relevance for conservation

Determination of marine migratory behavior and its relationship to selected physical traits for least cisco (Coregonus sardinella) of the western Arctic coastal plain, Alaska

Evolution of a streamlined cooperator in Pseudomonas aeruginosa quorum sensing

Assessment of black vine weevil larval damage to cranberries and development of alternative control strategies

The influence of primary children's ideas in science on teaching practice

Development of a progeny marker for steelhead

Effects of wildfire on growth and demographics of coastal cutthroat trout in headwater streams

Design, assessment, and future implications of the Multiple Enzyme Analyzer (MEA), a tool for in-situ monitoring of marine microbial activity

Responses of foothill yellow-legged frog (Rana boylii) larvae to an introduced predator

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