Whole-body endothermy in a mesopelagic fish, the opah, Lampris guttatus

Wegner, Nicholas C.; Snodgrass, Owyn E.; Dewar, Heidi; Hyde, John R.

doi:10.1126/science.aaa8902

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Whole-body endothermy in a mesopelagic fish, the opah, Lampris guttatus

2015
By Wegner, Nicholas C. ; Snodgrass, Owyn E. ; Dewar, Heidi ; ...
Source: Science, 348, 1-16

[PDF-633.63 KB]

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Details:

Journal Title:

Science
Personal Author:

Wegner, Nicholas C. ; Snodgrass, Owyn E. ; Dewar, Heidi ; Hyde, John R.

Wegner, Nicholas C. ; Snodgrass, Owyn E. ; Dewar, Heidi ; Hyde, John R. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center)

NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) Less -
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.
Keywords:

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Opah Physiology
Source:

Science, 348, 1-16
DOI:

https://doi.org/10.1126/science.aaa8902
Pubmed Central ID:

25977549
Document Type:

Journal Article
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CC BY
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Submitted
Main Document Checksum:

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urn:sha256:ee28270b300ce09526464b52534810a936374d77b02722e735315f1cacaff6ec
Download URL:

https://repository.library.noaa.gov/view/noaa/29052/noaa_29052_DS1.pdf
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