Oxygen consumption of largemouth bass, Micropterus salmoides, in relation to swimming speed and temperature

1970 ◽  
Vol 48 (6) ◽  
pp. 1221-1228 ◽  
Author(s):  
F. W. H. Beamish
Keyword(s):  
Oxygen Consumption ◽  
Swimming Speed ◽  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Maximum Speed ◽  
Total Length ◽  
Linear Regressions

Oxygen consumption was determined for largemouth bass, Micropterus salmoides, of various sizes in relation to sustained swimming speeds. The logarithm of oxygen consumption for a given swimming speed and temperature increased linearly with the logarithm of weight. Slopes of regressions were considerably less than unity. In general, slopes for different swimming speeds at a given temperature did not differ significantly. The relation between logarithm of oxygen consumption and swimming speed is expressed as a series of parallel, linear regressions for the temperatures followed. For a given swimming speed, oxygen consumption increased with temperature from 10 to 34 C, the highest temperature followed.Active oxygen consumption increased linearly with weight when expressed on a logarithmic grid. At each temperature the slope of the regression approached unity. The logarithm of standard oxygen consumption increased linearly with temperature from 10 to 34 C.The logarithm of maximum sustained swimming speed increased linearly with total length at each temperature. For a given total length, maximum sustained swimming speed increased from 10 to 30 C. Between 30 and 34 C maximum speed decreased.

Apparent Specific Dynamic Action of Largemouth Bass, Micropterus salmoides

1974 ◽  
Vol 31 (11) ◽  
pp. 1763-1769 ◽  
Author(s):  
F. W. H. Beamish
Keyword(s):  
Body Weight ◽  
Oxygen Consumption ◽  
Food Intake ◽  
Largemouth Bass ◽  
Micropterus Salmoides ◽  
Specific Dynamic Action ◽  
Feeding Level ◽  
Dynamic Action ◽  
Time Required ◽  
Ration Size

Oxygen consumption attributable to apparent specific dynamic action (SDA) was measured in relation to feeding level and body weight in largemouth bass, Micropterus salmoides, forced to swim at 1.7 body lengths/s (BL/s). Apparent SDA rose curvilinearly with ration size, the coefficient increasing with weight of bass. For a ration of fixed percent body weight/day, apparent SDA increased curvilinearly with weight of bass, the rate being most pronounced at higher levels of food intake. Apparent SDA expressed in energy units as a percent of ration ingested did not differ significantly with weight of fish or meal size. The overall mean apparent SDA ± SD was 14.19 ± 4.19% of the energy ingested. Time required for oxygen consumption to subside to pre-feeding levels increased with ration size and weight of bass.Over the range of swimming speeds from 1.4 to 2.5 BL/s, there were no differences in apparent SDA of similar size bass fed a ration of 4% body weight/day. Similarly, time for elevated levels of oxygen consumption to return to prefeeding rates was independent of swimming speed.

Speed effects on midline kinematics during steady undulatory swimming of largemouth bass, Micropterus salmoides

1995 ◽  
Vol 198 (2) ◽  
pp. 585-602 ◽  
Author(s):  
B. C. Jayne ◽  
G. V. Lauder
Keyword(s):  
Swimming Speed ◽  
Largemouth Bass ◽  
High Speed ◽  
Lateral Displacement ◽  
Micropterus Salmoides ◽  
Beat Frequency ◽  
Morphological Data ◽  
Caudal Fin ◽  
Mean Values ◽  
The Times

We used frame-by-frame analysis of high-speed videotapes to quantify midline kinematics during steady swimming in largemouth bass at five standardized speeds (0.7, 1.2, 1.6, 2.0 and 2.4 L s-1, where L is total length). By combining morphological data from X-ray photographs with mathematical reconstructions of the midline of each fish, we determined the amplitude and timing of lateral displacement (zmax), lateral flexion (ssmax) and the angle between the midline and the axis of forward travel (thetamax) for each vertebral joint, the hypural bones and four equally spaced segments of the caudal fin rays. Analysis of variance revealed pervasive significant effects of both swimming speed and longitudinal location on variables describing amplitude, phase and wavelength. The amplitudes of zmax, ssmax and thetamax generally increased in a non-linear fashion from approximately 25 %L to the tip of the caudal fin, and the greatest speed-related increases occurred between 0.7 and 1.6 L s-1. For the snout, the first caudal vertebra and the trailing edge of the caudal fin, mean values of zmax increased with speed from 0.004 to 0.012 L, from 0.005 to 0.012 L and from 0.053 to 0.066 L, respectively. For joints between the skull and the first vertebra, between the trunk and the tail vertebrae, and among the most posterior caudal vertebrae, mean values of ssmax increased with speed from 1.2 to 1.7 degrees, from 0.6 to 0.9 degrees and from 1.4 to 2.2 degrees, respectively. Within each swimming speed, values of ssmax of the distal caudal fin commonly exceeded twice those of the proximal caudal fin. Surprisingly, at a given longitudinal location, the times of maximum lateral displacement and bending did not occur simultaneously. Instead, the phase of zmax relative to ssmax was commonly shifted by more than one-sixth of a cycle. Furthermore, the phase shift between zmax and ssmax changed significantly with increased swimming speed. Angles of attack of the tail structures changed periodically from negative to positive values. Maximum angles of attack of the distal caudal fin ranged from 5 to 17 degrees, changed significantly with swimming speed and were less than those of the hypural bones of the tail. Mean tail-beat frequency increased significantly from 2.0 to 4.2 Hz with increased swimming speed. Estimated speeds of wave propagation showed considerable longitudinal variation, and the ratio of swimming speed to posterior wave speed increased from 0.59 to 0.83 with increased swimming speed.

Pathogeny of disease characterized by swollen liver and spleen in largemouth bass (Micropterus salmoides)

2013 ◽  
Vol 18 (3) ◽  
pp. 654-659 ◽  
Author(s):  
Dongmei MA ◽  
Guocheng DEND ◽  
Junjie BAI ◽  
Shengjie LI ◽  
Xiaoyan JIANG ◽  
...  
Keyword(s):  
Largemouth Bass ◽  
Micropterus Salmoides
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