Publications by authors named "J Spitz"

Social drivers of health (SDOH) are a significant contributor to persistent cardiovascular health disparities in the United States and globally. SDOH include psychosocial, environmental, socioeconomic, cultural, and governmental factors that impact health behaviors and outcomes. Multiple social drivers have been associated with trends in cardiovascular disease risk and health outcomes.

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Energy content has long been proposed as a fundamental, integrated, and reliable indicator of the condition of individuals as it reflects past bioenergetics and influences future life-history traits. There is a direct biochemical link between energy density and body composition described by four main compounds in fish (protein, lipid, ash, and water), with proteins and lipids being the sources of energy. If relationships between water content, or lipid content, and energy density have been well described in relative terms, the absolute mass variations in the proximate composition have been overlooked and thus their interpretation is often equivocal.

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Article Synopsis
  • Deep-pelagic species play a crucial role in marine ecosystems but are threatened by global changes and human activity, making understanding their ecology essential.
  • This study utilized stable isotope analysis of mercury, carbon, and nitrogen to classify deep-pelagic species caught in the Bay of Biscay based on their foraging depth and feeding habits.
  • Findings showed that different mercury isotopes could effectively distinguish species across various depths, revealing diverse mercury sources linked to different trophic groups in the area.
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