Penteado, Carlos Henrique Silva [UNESP]2014-05-272014-05-271987-12-01Comparative Biochemistry and Physiology -- Part A: Physiology, v. 86, n. 1, p. 163-168, 1987.0300-9629http://hdl.handle.net/11449/1323451. 1. Oxygen consumption and its relationship to declining oxygen tension was examined in the tropical spirotreptid millipede, Plusioporus setiger. 2. 2. At 25°C and normoxia, the allometric equations relating the weight-specific oxygen consumption rates and body weight were V ̇O2 = 2.1266 × W-53 for males, and V ̇O2 = 2.0915 × W-64 for females, but no significant difference was detected from the b-values. 3. 3. Plusioporus setiger regulated respiration down to 35.40 mmHg O2 when suddenly exposed to a lowered oxygen tension, or 17.70 mmHg O2, when examined in a stepwise declining oxygen tension. 4. 4. O2 dependence indices ( K1 K2) were relatively low, also expressing regulation, but no relation to size (weight) was recorded. 5. 5. After exposure to hypoxia, P. setiger showed a typical pattern of under repayment, on the return to normoxia. © 1987.163-168engArtigo10.1016/0300-9629(87)90295-7WOS:A1987F683700029Acesso restrito2-s2.0-2642621476