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- Academic -- UNF -- Biology; ecotoxicology; sharks; mercury; S100b; oxidative stress; neurological effects (1)
- Academic -- UNF -- Master of Science in Biology; Dissertations (1)
- Academic -- UNF -- Master of Science in Psychological Science; adolescent decision-making; adolescence; young adulthood; risk behaviors; risk-taking; prosocial behaviors; prosociality; altruism; empathy; peer affiliation; peer influence; positive peers; prosocial peers (1)
- Academic -- UNF -- Psychology; Dissertations (1)
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Mercury Accumulation And Effects In The Brain Of Atlantic Sharpnose Sharks (Rhiszoprionodon Terranovae), Samantha L. Ehnert
Mercury Accumulation And Effects In The Brain Of Atlantic Sharpnose Sharks (Rhiszoprionodon Terranovae), Samantha L. Ehnert
UNF Graduate Theses and Dissertations
Sharks often bioaccumulate mercury (Hg) concentrations in their muscle to levels that threaten the health of human consumers. However, few published studies have examined if the high Hg levels seen in shark muscle also occur in the shark brain, or if Hg accumulation affects shark neurophysiology. Therefore, this study examined if shark brains accumulate significant levels of Hg, if Hg accumulation occurs in certain subcomponents of the brain, and if Hg accumulation is associated with oxidative stress effects on the shark central nervous system, with special focus on the Atlantic sharpnose shark (Rhizoprionodon terraenovae). Sharks were collected along …
Prosociality And Risk: How Risky Decision-Making In Young Adults Relates To Altruistic Tendencies, Empathic Concern, And Prosocial Peer Affiliation, Sarah J. Beard
UNF Graduate Theses and Dissertations
Adolescence involves an increase in risky decisions, such as reckless driving and illicit substance use, but prosocial characteristics and peer affiliation have yet to be investigated as protective factors. The present study assessed altruistic tendencies, prosocial peer affiliation (PPA), and empathic concern as predictors and moderators of risk-taking, including both self-reported health risks and riskiness in a behavioral task. Young adults from ages 20 to 25 (M = 22.55, SD = 1.38) completed a battery of behavioral tasks (including the Balloon Analogue Risk Task and the Dictator Game) and questionnaires on Amazon MTurk, measuring risk-taking (drunk driving, texting while …