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Articles 1 - 9 of 9
Full-Text Articles in Life Sciences
Ichthyofaunal Utilization Of A Man-Made Salt Marsh Creak In Mission Bay, California, 25 Years After Creation, Maria Angst
Ichthyofaunal Utilization Of A Man-Made Salt Marsh Creak In Mission Bay, California, 25 Years After Creation, Maria Angst
McNair Summer Research Program
Southern California’s wetlands are drastically declining due to human activities. Increasingly, marsh restoration and creation are being used to mitigate such losses. This study used minnow traps to resample the ichthyofauna of a created marsh (Crown Point Mitigation Site; CPMS) and an adjacent natural marsh (Kendall Frost) in Mission Bay, California, 26 years following the marsh creation. These data were compared to data collected from 1995-1998, immediately after marsh creation. Fishes trapped included Fundulus parvipinnis, Gillichthys mirabilis, Ctenogobius sagittula, Atherinops affinis, and Mugil cephalus. Species richness and dominance measures were higher in the natural relative to the created marsh. The …
Obesity Prevention Toolkit To Combat Weight Gain Related To Sedentary Behavior And Dietary Habits In College Students: An Evidence-Based Project, Maria Amos, Martha Fuller
Obesity Prevention Toolkit To Combat Weight Gain Related To Sedentary Behavior And Dietary Habits In College Students: An Evidence-Based Project, Maria Amos, Martha Fuller
Doctor of Nursing Practice Final Manuscripts
Abstract
Background: Forty percent of the US population ages 20-39 are categorized as obese,
their BMI is over 30, and 35% of college age students are obese or overweight. Issues related to obesity cost the US $147 billion annually. Between 40%-50% of college students are reported to be inactive. Inactivity can lead to increased morbidity and mortality related to increased risks of cardiovascular disease, diabetes, hypertension, musculoskeletal issues, and depression. Providing dietary and physical activity education and access to nutritional information promotes behavior change in young adults.
Aims of Service Change: This evidence-based project proposal aims to provide a toolkit …
Historical Ecology Of The San Diego Sport Fishery: Catch Composition, Species Trends, And Fishing Effort From 1959 To 2011, Rebecca Schwartz Lesberg
Historical Ecology Of The San Diego Sport Fishery: Catch Composition, Species Trends, And Fishing Effort From 1959 To 2011, Rebecca Schwartz Lesberg
Theses
Like ocean systems around the world, species targeted by the San Diego sportfishery are subject to myriad threats from human activity, with several species already showing documented decline. However, long-term fisheries datasets are often lacking, limiting natural resource managers’ ability to appropriately manage these ecologically and economically important species. Therefore, this study used daily reports published in two Southern California newspapers to examine changes in catch composition, effort, and catch per unit effort (CPUE) from 1959-2011 for the San Diego commercial passenger fishing vessel (CPFV) sportfishery. This study then tested the relationship between those patterns and three large scale oceanographic …
Life Satisfaction: Aging Female Informal Caregivers Of Persons With Dementia, Deborah Ann Monson
Life Satisfaction: Aging Female Informal Caregivers Of Persons With Dementia, Deborah Ann Monson
Dissertations
Purpose/Aims
The purpose of this study was to describe the relationship between aging female informal caregivers of persons with dementia (PWD) and care recipients’ PWD demographic factors, aging female informal caregivers of PWD social support factors, positive and negative feelings, a sense of flourishing, stress, and life satisfaction.
Background/Rationale
Older adults with dementia are living longer and the majority are receiving care by aging female informal caregivers. Dementia incrementally worsens over time impacting informal caregiver life satisfaction. Most studies have focused on negative aspects of informal caregiving. Therefore, this study investigated both positive and negative aspects of caregiving.
Conceptual Basis …
Using Aerial Photogrammetry And Sexually Dimorphic Measurements To Investigate Seasonal Differences In School Composition Of Delphinus Spp. Off Southern California, Samantha Gm Leander
Using Aerial Photogrammetry And Sexually Dimorphic Measurements To Investigate Seasonal Differences In School Composition Of Delphinus Spp. Off Southern California, Samantha Gm Leander
Theses
Insights into school composition can provide a means to understand basic biology and ecology, including reproductive patterns. They can also be applied to conservation assessments, allowing for better understanding of the potentially differential vulnerability of demographic groups to natural or anthropogenic disturbances that may influence their populations. However, the two subspecies of common dolphins in the waters off California (Delphinus delphis delphis and D. d. bairdii) form large, energetic groups that make characterization of school composition difficult. Remotely controlled drones now offer the opportunity for the study of school composition in Delphinus spp., allowing for precise morphometric measurements …
Developing A Method To Track Marine Snow Aggregation Through Individual Collisions Using Stereoscopic Imaging, Riley Henning
Developing A Method To Track Marine Snow Aggregation Through Individual Collisions Using Stereoscopic Imaging, Riley Henning
Theses
The aggregation of individual phytoplankton into marine snow allows particles to sink more quickly, thus resulting in the transport of particulate organic carbon from surface waters to the deep ocean. Aggregate formation has previously been measured in experiments indirectly by quantifying how particle size or particle concentration changes over time. Here, I present my thesis in which I applied high-resolution imaging to quantify aggregate formation using two different methodologies.
We conducted experiments to investigate aggregate formation using stereoscopic imaging, tracking individual particles directly in a 3D volume. Phytoplankton cultures were rolled in cylindrical tanks and imaged by two cameras illuminated …
The Effects Of Temperature And Body Size On The Metabolism And Hypoxia Tolerance Of White Abalone (Haliotis Sorenseni) And Red Abalone (H. Rufescens), Stephanie Fan
Theses
In 2001, white abalone, Haliotis sorenseni, became the first marine invertebrate to be listed under the U.S. Endangered Species Act. Allee effects due primarily to overharvesting and disease resulted in individuals being too far apart for successful fertilization. Despite the fishery closure in 1996, H. sorenseni still shows no signs of recovery. Today, the White Abalone Recovery Consortium (WARC), a group that includes federal and state agencies, aquaculture organizations, academic institutions, and public aquaria, is working to recover this endangered species back from the brink of extinction.
In order to better understand the metabolic demands and hypoxia tolerance of the …
Otolith Microchemistry Reveals Low Habitat Connectivity Of California Killifish (Fundulus Parvipinnis) Across A Range Of Spatial Scales, Lisa Robison
Theses
As wetlands face continued fragmentation worldwide, an understanding of habitat connectivity and how fishes that rely on these environments is imperative to conduct effective marine management. Site fidelity and habitat connectivity are vital measures of the interdependence of fish populations living in neighboring marshes (or in regions of a single marsh).
Here, we examine the habitat connectivity, site fidelity, and movement of California killifish (Fundulus parvipinnis) within and among three estuaries in Southern California through otolith microelemental analysis. Assessing the site fidelity of estuarine fishes is important to determine the level of connectivity between spatially distinct populations within …
Diet Of An Important Wetland Resident, The California Killifish, Fundulus Parvipinnis, In A Natural And Created Marsh Habitat In Mission Bay, California, Katie Robinson-Filipp
Diet Of An Important Wetland Resident, The California Killifish, Fundulus Parvipinnis, In A Natural And Created Marsh Habitat In Mission Bay, California, Katie Robinson-Filipp
Theses
The California killifish, Fundulus parvipinnis Girard, is an ecologically important marsh resident. Fundulus parvipinnis is a low-level carnivore, displaying high-site fidelity and occurring in high densities across a range of environmental conditions. Despite the importance of F. parvipinnis to the ecosystem functions of the threatened coastal wetlands of southern California and the Baja California Peninsula, there are critical gaps in our knowledge of this species. In particular, information on their diet and food habits is lacking.
Understanding wetland food web linkages, interactions, and trophic transfer is essential for informing effective habitat management and contributes to our ability to evaluate the …