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Peregrine Falcon (Falco peregrinus) Subspecies Phylogenomics Using Whole Genome Re-Sequencing

Description: Peregrine falcon subspecies taxonomy is widely debated due to uncertainty in their evolutionary history and unresolved phylogenetic reconstruction using both morphological and molecular data. Previous genetic work has shown limited support for subspecies taxonomy largely as a result of molecular markers used, potential contemporary gene flow, incomplete lineage sorting, and ancestral polymorphisms. With the advent of next-generation sequencing, the cost of generating large amounts of sequence d… more
Date: December 2020
Creator: Meeks, Garrett W.
Item Type: Refine your search to only Thesis or Dissertation

Metabolic Responses to Crude Oil during Very Early Development in the Zebrafish (Danio rerio)

Description: The present study sought to determine some morphological and physiological critical windows during very early development in zebrafish exposed to crude oil. I hypothesized that exposed zebrafish would present a decrease in survival rate and body mass, and an increase in routine oxygen consumption (ṀO2), and critical oxygen tension (PCrit). To test these hypotheses, zebrafish were acutely exposed (24 h) during different days of development (1 to 6 days post-fertilization, dpf) to different conce… more
Date: August 2020
Creator: Vazquez Roman, Karem Nathalie
Item Type: Refine your search to only Thesis or Dissertation
open access

The Effects of Probiotics on Growth, and Metabolism in Juvenile Oreochromis mossambicus (Mozambique Tilapia)

Description: Improving growth, lowering mortality rates, and having a faster turnaround to harvest is essential for the future of commercial aquaculture. The primary goal of this study was to determine if introducing a single strain probiotic Lactobacillus rhamnosus IMC 501 into the feed regimen of a commercially important aquaculture freshwater fish, Mozambique tilapia (Oreochromis mossambicus), would decrease mortality; change metabolic rates; and increase tissue wet mass (MW), standard length, growth rat… more
Date: May 2020
Creator: Anderson, Michael Earl
Item Type: Refine your search to only Thesis or Dissertation

Storm Water Retention Ponds: An Important Source of Aquatic Macroinvertebrate Diversity in a Semi-Arid Urban Landscape of Denton, Texas

Description: The City of Denton, located in a semi-arid region of Texas, has over 200 manmade ponds within its city limits. Many of these ponds, located in densely populated areas, are engineered to control storm water runoff. There is a general lack of recognition of the value these waters contribute to regional biodiversity and as greenspaces. This study, conducted in Denton, is monitoring habitat variables and macroinvertebrate diversity in a series of ponds selected to represent a gradient of urban in… more
Date: May 2020
Creator: Moore, Sabrina
Item Type: Refine your search to only Thesis or Dissertation
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