
TY  - JOUR
A1  - Crear, B. J. 
A1  - Forteath, G. N. R. 
T1  - Flow-rate requirements for captive western rock lobsters (<emph type="2">Panulirus cygnus</emph>): effects of body weight, temperature, activity, emersion, daily rhythm, feeding and oxygen tension on oxygen consumption
JF  - Marine and Freshwater Research
JO  - Mar. Freshwater Res.
Y1  - 2001
VL  - 52
IS  - 5
SP  - 763
EP  - 771
KW  - 
UR  - https://doi.org/10.1071/MF00004 
N2  - Oxygen consumption (Mo 2) of P. cygnus was measured in intermittent flow respirometers. A log&#8211;log relationship with body weight (W ) remained constant over the range 15&#8211;31 &#176;C. Mo 2 was related to body weight and temperature (T) : log 10 Mo 2 =0.814log 10W +0.051 T &#8211; 2.075.I n 400 &#8211;500 g lobsters it showed a strong response to acute temperature changes (23 &#8211;19 &#8211;15 &#8211;11 and 23 &#8211;27 &#8211;31 &#176;C): log 10 Mo 2 = 0.045 T &#8211; 2.38. Activity caused a significant (P &#60;0.001) increase in Mo 2, with the response being modulated by temperature and body weight. Lobsters took 5&#8211;8 h to recover from exposure to handling and emersion, the duration of the recovery period being longer at higher temperatures. A nocturnal rhythm to oxygen consumption was evident. There was a large and sustained specific dynamic action, with a peak Mo 2 of 2.19 times the standard rate occurring 7 h after feeding. Mo 2 at 23 &#176;C was independent of the oxygen tension down to a critical oxygen tension (P c) of 46.2 Torr, be low which Mo 2 varied directly with the oxygen tension. P c varied with temperature and activity state. The data allow the design of live-holding systems and practices that provide the oxygen requirements of captive P. cygnus . Extra keyword: live holding. 
ER  -

