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Comparative and Evolutionary Physiology Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Comparative and Evolutionary Physiology
Effect Of Temperature On Morphology Of The Cardiorespiratory System Of Striped Bass (Morone Saxatilis), Alley E. Permenter
Effect Of Temperature On Morphology Of The Cardiorespiratory System Of Striped Bass (Morone Saxatilis), Alley E. Permenter
Honors College Theses
Climate change and temperature are two very important topics for the coming future. As climate change projections estimate a 2-3°C increase in water temperatures by the end of the century, the habitats of many aquatic organisms will be affected in more ways than one. Temperature has proven to be an integral part of the driving force that causes physiological, behavioral, and ecological patterns in aquatic organisms. Striped bass (Morone saxatilis) and their responses to changes in water temperature have been a topic of interest due to the fact that the southern populations do not follow their northern counterparts …
Use Of Hematological Markers To Assess Physiological Condition And Health Status In Free-Ranging Sand Tiger Sharks (Carcharias Taurus), Chestina N. Craig
Use Of Hematological Markers To Assess Physiological Condition And Health Status In Free-Ranging Sand Tiger Sharks (Carcharias Taurus), Chestina N. Craig
College of Graduate Studies: Theses & Dissertations
The contents of blood can provide information about the physiological condition and health of vertebrates. This study seeks to better understand the stress physiology and blood bacteria presence of the sand tiger shark (Carcharias taurus), as sharks are known to have unique physiology and immune systems. In this study the blood metabolites glucose, lactate, and ketones (3-hydroxybuteric acid and acetoacetate), were used to understand how biotic and abiotic factors affect the acute stress response to capture and handling. Metabolite concentrations from blood plasma were analyzed using colorimetric assays. Glucose and ketones showed no significant responses to capture and …
Creating A Georgia Southern Spider Collection: Can Dna Barcoding Help?, Guy B. Hobbs
Creating A Georgia Southern Spider Collection: Can Dna Barcoding Help?, Guy B. Hobbs
College of Graduate Studies: Theses & Dissertations
With over 280 spider (Araneae) species recorded within the State of Georgia, USA, the need for a well-documented natural history collection with a usable voucher system is critical to continually assess spider diversity and their future ecological impact in this region. Spider identification can be daunting for the inexperienced taxonomist; it is time consuming and sometimes requires destructive procedures. Previous works have successfully used an alternative method, DNA barcoding, to correctly identify spider species while preserving their morphology. This study set forth to create the core of a well-documented spider collection within Georgia Southern University’s Institute for Coastal Plain Science …
Plasticity And The Impact Of Increasing Temperature On A Tropical Ectotherm, Adam A. Rosso
Plasticity And The Impact Of Increasing Temperature On A Tropical Ectotherm, Adam A. Rosso
College of Graduate Studies: Theses & Dissertations
Organisms may respond to climate change through behavior, genetic adaptation, and/or phenotypic plasticity. Tropical ectotherms are thought to be especially vulnerable to climate change because most have a narrow range of thermal tolerance while living close to their upper thermal tolerance limits. Additionally, many tropical species live in closed-canopy forests, which provide homogenous thermal landscapes that prevent behavioral compensation for stressfully warm temperatures. Finally, tropical ectotherms are thought to have decreased capacity for phenotypic plasticity because they have evolved in thermally stable environments. We tested gene expression patterns and phenotypic plasticity in the Panamanian slender anole by a) measuring changes …
The Physiological Stress Response Caused By Hypoxia And Reperfusion Injury In Striped Bass (Morone Saxatilis) And Nile Tilapia (Oreochromis Niloticus), Amanda C. Reynolds
The Physiological Stress Response Caused By Hypoxia And Reperfusion Injury In Striped Bass (Morone Saxatilis) And Nile Tilapia (Oreochromis Niloticus), Amanda C. Reynolds
College of Graduate Studies: Theses & Dissertations
Approximately five million people in the United States are affected by cardiovascular related diseases yearly contributing to 300,000 annual deaths, making CVD the leading cause of mortality worldwide. It has been suggested that apoptosis (programmed cell death) contributes to the pathogenesis of cardiovascular diseases. When blood flow is reduced or cut off from the heart, usually by a thrombus, this results in oxygen deprivation (hypoxia) to the cardiomyocytes (heart cells). In response to this hypoxic stress, cardiomyocytes will undergo apoptosis. Since many species of fish can survive levels of hypoxia that would be fatal to mammals, fish are an ideal …