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Oxygen consumption in Caridina nilotica (Decapoda: Atyidae) in relation to temperature and size
Author(s) -
HART R. C.
Publication year - 1980
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1980.tb01196.x
Subject(s) - respirometer , respiration , oxygen , shrimp , decapoda , biology , zoology , clark electrode , cellular respiration , crustacean , ecology , energy metabolism , chemistry , botany , electrode , endocrinology , organic chemistry , electrolyte
SUMMARY. The oxygen consumption of shrimps ranging from 1 to 30 mg dry mass was determined at 18, 24 and 30°C using a continuous flow recording respirometer based upon a Clark‐type oxygen electrode. Respiration (ascribed to routine metabolism) is described by the power curve: R = a M b , ( R =μg O 2 h −1 , M = mg dry mass), which gives values of a = 1.632, 2.564 and 4.181, and b = 0.800, 0.898, and 0.793, at 18, 24 and 30°C respectively. The single expression, R = 0.008 T 1.829 M 0.830 provides a reasonable prediction of respiration as a combined function of shrimp size ( M ) and temperature (T, °C). Using an energy equivalent of 14.14 J mg O 2 −1 estimates of the energy requirements ( E , J h −1 10 −3 ) of routine metabolism are given by the expression: E = 0.115 T 1.829 M 0.830 . Variability in oxygen consumption values between individuals is discussed and the observations on C. nilotica are compared with other crustacean studies.