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Oxygen Consumption, Energy Expenditure, and Growth of the Red Snapper (Lutjanus campechanus)
Author(s) -
Wakeman J. M.,
Arnold C. R.,
Wohlschlag D. E.,
Rabalais S. C.
Publication year - 1979
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1979)108<288:oceeag>2.0.co;2
Subject(s) - zoology , body weight , population , food consumption , energy metabolism , energy expenditure , biology , fishery , medicine , endocrinology , economics , environmental health , agricultural economics
Daily weight increases of captive 1–2‐year‐old red snappers over a period of 300 days were approximately 0.45% of body weight—a value which agreed closely with estimated daily weight increases in a wild population. Respiratory metabolism for 1–2‐year‐old red snappers swimming at 0.5 km/hour was 89 mg O 2 kg −1 hour −1 at 20 C, and resting metabolism at this temperature was 62 mg O 2 kg −1 hour −1 . Energetic requirements for routine respiratory metabolism and growth in these fish indicated a minimum daily food requirement of about 1.5% of body weight. Food conversion efficiency was estimated to be 30%.
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