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ENERGY EXPENDITURE OF SWIMMING COPEPODS
Author(s) -
Vlymen William J.
Publication year - 1970
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1970.15.3.0348
Subject(s) - basal metabolic rate , energy expenditure , drag , drag coefficient , reynolds number , propulsive efficiency , copepod , biology , environmental science , mechanics , physics , crustacean , ecology , thermodynamics , propulsion , endocrinology , turbulence
The deceleration patterns following a leap by the calanoid copepod, Labidocera trispinosa were used to determine the parameters k and n in the proposed drag law C d = k (Re) − n where C d is the drag coefficient and Re is the Reynolds number. This relation was used to calculate the rate of energy expenditure in constant velocity swimming and in accelerating from rest to a given velocity. At the velocities and accelerations observed, assuming 100% metabolic and propulsive efficiency, the rate of energy expenditure is slightly greater than 0.1% of the basal metabolic rate. It was also shown that at the swimming speeds observed during vertical migrations, the rate of energy expenditure is slightly less than 0.3% of the basal metabolic rate.