Whole-body endothermy in a mesopelagic fish, the opah, Lampris guttatus
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Whole-body endothermy in a mesopelagic fish, the opah, Lampris guttatus
  • Published Date:

    2015

  • Source:
    Science, 348, 1-16
Filetype[PDF-633.63 KB]


Details:
  • Description:
    Endothermy (the metabolic production and retention of heat to warm body temperature above ambient) enhances physiological function, and whole-body endothermy generally sets mammals and birds apart from other animals. Here we describe, however, a whole-body form of endothermy in a fish, the opah (Lampris guttatus), which produces heat through the constant “flapping” of wing-like pectoral fins and minimizes heat loss through a series of counter-current heat exchangers within its gills. Unlike other fishes, opah distribute warmed blood throughout the body, including to the heart, thereby enhancing physiological performance and buffering internal organ function while foraging in the cold, nutrient rich waters below the ocean thermocline.
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  • Pubmed Central ID:
    25977549
  • Document Type:
  • Rights Information:
    CC-BY
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