Journal
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
Volume 42, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbd.2022.100991
Keywords
Cetaceans; Health; Disease; Metabolomics; Physiology; Bottlenose dolphins; Metabolism
Funding
- US Office of Naval Research [N000141512377, N0001411IP20081, N00014110541]
- U.S. Department of Defense (DOD) [N000141512377] Funding Source: U.S. Department of Defense (DOD)
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Cumulative exposure to anthropogenic stressors can impact the health and reproduction of coastal cetaceans. The concept of health for cetaceans in an ecological context is not well understood. Using a health-monitoring program, this study found that individuals in poor health showed changes in metabolic pathways. Further research is needed to understand the interplay between health and energy metabolism in cetaceans.
Cumulative exposure to sub-lethal anthropogenic stressors can affect the health and reproduction of coastal cetaceans and hence their population viability. To date, we do not have a clear understanding of the notion of health for cetaceans in an ecological context; that is, how health status affects the ability of individuals to survive and reproduce. Here, we make use of a unique health-monitoring programme of estuarine bottlenose dolphins in South Carolina and Florida to determine de novo changes in biological pathways, using untargeted plasma metabolomics, depending on the health status of individuals obtained from veterinary screening. We found that individuals that were in a poor health state had lower circulating amino acids pointing towards increased involvement of gluconeogenesis (i.e., new formation of glucose). More mechanistic work is needed to disentangle the interconnection between health and energy metabolism in cetaceans to mediate potential metabolic constraints they may face during periods of stress.
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