Citrate synthase (CS), creatine phosphokinase (CPK) and lactate dehydrogenase (LDH) activities in the red and white myotomal muscle of nine shark species
| . | . | . | . | Enzyme activity at 20°C* . | . | . | . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | . | . | . | Red muscle . | . | White muscle . | . | . | . | ||||
| Species (common name) . | Fork length (cm) . | Mass (kg) . | SST†(°C) . | CS . | LDH . | CS . | CPK . | LDH . | Source . | ||||
| Isurus oxyrinchus (shortfin mako shark) | 79-168 | 4.8-49.5 | 18-21 | 31.6±1.8 [30] | 244.3±8.0 [31] | 2.10±0.05 [31] | 834.3±22.7 [24] | 1154.7±35.7 [31] | Present study | ||||
| Lamna ditropis (salmon shark) | 186-210 | 127-136 | 7-10 | 35.4 (32.5-38.7) [2] | 249.9 (233.5-266.3) [2] | 2.63 (2.1-3.2) [2] | 1254.5 (1172.7-1336.4) [2] | Present study | |||||
| Alopias vulpinus (common thresher shark) | 73-137 | 6.3-43.1 | 18-21 | 27.1±2.8 [6] | 201.4±21.1 [6] | 1.29±0.19 [6] | 642.1 (544.1-740.1) [2] | 414.8±82.3 [6] | Present study | ||||
| Prionace glauca (blue shark) | 176-246 | 34-59 | 18-21 | 22.3±6.3 [4] | 71.4±7.9 [4] | 1.00±0.04 [4] | 631.9 [1] | 150.0±24.1 [4] | Present study; Dickson et al.(1993) | ||||
| Sphyrna lewini (scalloped hammerhead shark) | 15-46 | 0.5-0.8 | 23-25 | 33.9±1.1 [10] | 152.9±12.4 [10] | 0.87±0.04 [10] | 646.6±39.7 [10] | Present study | |||||
| Sphyrna tiburo (bonnethead shark) | 50-60 | 0.47-0.75 | 23-28 | 749.8±43.9 [6] | Present study | ||||||||
| Rhizoprionodon terraenovae (Atlantic sharpnose shark) | 42-75 | 0.1-0.7 | 23-28 | 790.2±41.1 [13] | 924.7±52.3 [8] | Present study | |||||||
| Carcharhinus acronotus (Atlantic blacknose shark) | 56-82 | 0.5-3.1 | 23-28 | 545.6 (507.8-582.3) [2] | 1064.9 (985.9-1143.8) [2] | Present study | |||||||
| Triakis semifasciata (leopard shark) | 32-62 | 0.1-0.8 | 18-20 | 27.1±2.1 [7] | 189.4±8.2 [9] | 0.81±0.08 [7] | 661.2±21.5 [9] | Dickson et al. (1993) | |||||
| . | . | . | . | Enzyme activity at 20°C* . | . | . | . | . | . | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| . | . | . | . | Red muscle . | . | White muscle . | . | . | . | ||||
| Species (common name) . | Fork length (cm) . | Mass (kg) . | SST†(°C) . | CS . | LDH . | CS . | CPK . | LDH . | Source . | ||||
| Isurus oxyrinchus (shortfin mako shark) | 79-168 | 4.8-49.5 | 18-21 | 31.6±1.8 [30] | 244.3±8.0 [31] | 2.10±0.05 [31] | 834.3±22.7 [24] | 1154.7±35.7 [31] | Present study | ||||
| Lamna ditropis (salmon shark) | 186-210 | 127-136 | 7-10 | 35.4 (32.5-38.7) [2] | 249.9 (233.5-266.3) [2] | 2.63 (2.1-3.2) [2] | 1254.5 (1172.7-1336.4) [2] | Present study | |||||
| Alopias vulpinus (common thresher shark) | 73-137 | 6.3-43.1 | 18-21 | 27.1±2.8 [6] | 201.4±21.1 [6] | 1.29±0.19 [6] | 642.1 (544.1-740.1) [2] | 414.8±82.3 [6] | Present study | ||||
| Prionace glauca (blue shark) | 176-246 | 34-59 | 18-21 | 22.3±6.3 [4] | 71.4±7.9 [4] | 1.00±0.04 [4] | 631.9 [1] | 150.0±24.1 [4] | Present study; Dickson et al.(1993) | ||||
| Sphyrna lewini (scalloped hammerhead shark) | 15-46 | 0.5-0.8 | 23-25 | 33.9±1.1 [10] | 152.9±12.4 [10] | 0.87±0.04 [10] | 646.6±39.7 [10] | Present study | |||||
| Sphyrna tiburo (bonnethead shark) | 50-60 | 0.47-0.75 | 23-28 | 749.8±43.9 [6] | Present study | ||||||||
| Rhizoprionodon terraenovae (Atlantic sharpnose shark) | 42-75 | 0.1-0.7 | 23-28 | 790.2±41.1 [13] | 924.7±52.3 [8] | Present study | |||||||
| Carcharhinus acronotus (Atlantic blacknose shark) | 56-82 | 0.5-3.1 | 23-28 | 545.6 (507.8-582.3) [2] | 1064.9 (985.9-1143.8) [2] | Present study | |||||||
| Triakis semifasciata (leopard shark) | 32-62 | 0.1-0.8 | 18-20 | 27.1±2.1 [7] | 189.4±8.2 [9] | 0.81±0.08 [7] | 661.2±21.5 [9] | Dickson et al. (1993) | |||||
Enzyme activities are expressed as μmol substrate converted to product per min (IU) per g wet mass of tissue. Values are means ± s.e.m. except that, when the sample size is 2, data given are means and range (in parentheses). Numbers in brackets are the number of fish analyzed.
SST, sea surface temperature.