Table 2.
Amino acid data for West Runton, Bed D (sensu West, 1980), with data from Clacton and Waverley Wood for comparison. Error terms for the Clacton and Waverley Wood data represent two standard deviations about the mean for multiple individual samples. Error terms for the West Runton data represent two standard deviations about the mean for the duplicate analyses for an individual sample. Each sample (sh = shell; op = opercula) was bleached (b), with the Free Amino Acid fraction signified by ‘F’ and the total hydrolysable fraction by ‘H*’.
| NEaar no./sample name | Species | Area | Asx d/l | Glx d/l | Ser d/l | Ala d/l | Val d/l | [Ser]/[Ala] |
|---|---|---|---|---|---|---|---|---|
| ClVp1-4 bF (n = 4) | Valvata piscinalis sh | Clacton, Trafalgar Road | 0.675 ± 0.065 | 0.391 ± 0.021 | 0.671 ± 0.355 | 0.578 ± 0.033 | 0.296 ± 0.072 | 0.082 ± 0.027 |
| ClVp1-4bH* (n = 4) | Valvata piscinalis sh | Clacton, Trafalgar Road | 0.589 ± 0.073 | 0.340 ± 0.068 | 0.499 ± 0.342 | 0.539 ± 0.028 | 0.233 ± 0.030 | 0.154 ± 0.066 |
| ClBt1-4bF (n = 4) | Bithynia tentaculata sh | Clacton, Trafalgar Road | 0.682 ± 0.055 | 0.463 ± 0.147 | 0.543 ± 0.213 | 0.594 ± 0.052 | 0.307 ± 0.074 | 0.061 ± 0.013 |
| ClBt1-4bH* (n = 4) | Bithynia tentaculata sh | Clacton, Trafalgar Road | 0.629 ± 0.119 | 0.357 ± 0.117 | 0.382 ± 0.169 | 0.549 ± 0.091 | 0.232 ± 0.029 | 0.111 ± 0.019 |
| ClBto1-4bF (n = 4) | Bithynia tentaculata op | Clacton, Trafalgar Road | 0.779 ± 0.016 | 0.384 ± 0.044 | 0.981 ± 0.154 | 0.532 ± 0.036 | 0.326 ± 0.023 | 0.277 ± 0.036 |
| ClBto1-4bH* (n = 4) | Bithynia tentaculata op | Clacton, Trafalgar Road | 0.692 ± 0.050 | 0.264 ± 0.016 | 0.701 ± 0.201 | 0.464 ± 0.024 | 0.250 ± 0.040 | 0.304 ± 0.029 |
| WWBtr1-4bF (n = 4) | Bithynia troschelii sh | Waverley Wood, Bulk 1 | 0.750 ± 0.037 | 0.612 ± 0.080 | 0.729 ± 0.388 | 0.690 ± 0.060 | 0.422 ± 0.140 | 0.146 ± 0.069 |
| WWBtr1-4bH* (n = 4) | Bithynia troschelii sh | Waverley Wood, Bulk 1 | 0.546 ± 0.146 | 0.423 ± 0.161 | 0.424 ± 0.448 | 0.550 ± 0.141 | 0.276 ± 0.145 | 0.223 ± 0.286 |
| WWBtro1-6bF (n = 6) | Bithynia troschelii op | Waverley Wood, Bulk 1 | 0.810 ± 0.019 | 0.499 ± 0.091 | 1.024 ± 0.076 | 0.567 ± 0.008 | 0.348 ± 0.021 | 0.204 ± 0.018 |
| WWBtro1-3,5-6bH* (n = 5) | Bithynia troschelii op | Waverley Wood, Bulk 1 | 0.715 ± 0.008 | 0.362 ± 0.018 | 0.841 ± 0.079 | 0.494 ± 0.030 | 0.281 ± 0.021 | 0.206 ± 0.016 |
| 0898bF WRVp1bF | Valvata piscinalis sh | West Runton, Bed D | 0.767 ± 0.038 | 0.453 ± 0.004 | 0.313 ± 0.094 | 0.654 ± 0.042 | 0.321 ± 0.009 | 0.064 ± 0.017 |
| 0898bH* WRVp1bH* | Valvata piscinalis sh | West Runton, Bed D | 0.647 ± 0.007 | 0.404 ± 0.005 | 0.158 ± 0.018 | 0.553 ± 0.029 | 0.297 ± 0.009 | 0.119 ± 0.008 |
| 0899bF WRVp2bF | Valvata piscinalis sh | West Runton, Bed D | 0.778 ± 0.007 | 0.494 ± 0.001 | 0.255 ± 0.011 | 0.580 ± 0.026 | 0.285 ± 0.026 | 0.073 ± 0.002 |
| 0899bH* WRVp2bH* | Valvata piscinalis sh | West Runton, Bed D | 0.612 ± 0.009 | 0.383 ± 0.005 | 0.105 ± 0.001 | 0.512 ± 0.003 | 0.273 ± 0.015 | 0.169 ± 0.003 |
| 0900bF WRVp3bF | Valvata piscinalis sh | West Runton, Bed D | 0.767 ± 0.009 | 0.491 ± 0.014 | 0.366 ± 0.023 | 0.578 ± 0.025 | 0.271 ± 0.012 | 0.061 ± 0.005 |
| 0900bH* WRVp3bH* | Valvata piscinalis sh | West Runton, Bed D | 0.624 ± 0.000 | 0.386 ± 0.006 | 0.147 ± 0.017 | 0.543 ± 0.013 | 0.282 ± 0.018 | 0.136 ± 0.005 |
| 0901bF WRVp4bF | Valvata piscinalis sh | West Runton, Bed D | 0.745 ± 0.005 | 0.453 ± 0.008 | 0.384 ± 0.056 | 0.616 ± 0.040 | 0.271 ± 0.015 | 0.055 ± 0.004 |
| 0901bH* WRVp4bH* | Valvata piscinalis sh | West Runton, Bed D | 0.588 ± 0.001 | 0.350 ± 0.004 | 0.104 ± 0.021 | 0.555 ± 0.012 | 0.281 ± 0.015 | 0.184 ± 0.007 |
| 3629bF WRBtr1bF | Bithynia troschelii sh | West Runton, Bed D | 0.731 ± 0.082 | 0.506 ± 0.010 | 0.312 ± 0.349 | 0.705 ± 0.033 | 0.351 ± 0.019 | 0.083 ± 0.052 |
| 3629bH* WRBtr1bH* | Bithynia troschelii sh | West Runton, Bed D | 0.606 ± 0.114 | 0.426 ± 0.006 | 0.317 ± 0.063 | 0.640 ± 0.010 | 0.346 ± 0.010 | 0.099 ± 0.003 |
| 3630bF WRBtr2bF | Bithynia troschelii sh | West Runton, Bed D | 0.750 ± 0.033 | 0.566 ± 0.096 | ND | 0.691 ± 0.288 | 0.410 | 0.109 |
| 3630bH* WRBtr2bH* | Bithynia troschelii sh | West Runton, Bed D | 0.649 ± 0.035 | 0.480 ± 0.014 | ND | 0.651 ± 0.060 | 0.341 ± 0.017 | 0.058 |
| 3631bF WRBtr3bF | Bithynia troschelii sh | West Runton, Bed D | 0.671 ± 0.047 | 0.519 ± 0.070 | ND | 0.681 ± 0.035 | 0.426 ± 0.085 | 0.049 ± 0.004 |
| 3631bH* WRBtr3bH* | Bithynia troschelii sh | West Runton, Bed D | 0.550 ± 0.059 | 0.452 ± 0.013 | ND | 0.650 ± 0.002 | 0.330 ± 0.035 | 0.104 ± 0.068 |
| 3632bF WRBtr4bF | Bithynia troschelii sh | West Runton, Bed D | 0.728 ± 0.006 | 0.593 ± 0.078 | ND | 0.724 ± 0.001 | 0.427 ± 0.043 | 0.052 ± 0.059 |
| 3632bH* WRBtr4bH* | Bithynia troschelii sh | West Runton, Bed D | 0.591 ± 0.007 | 0.471 ± 0.033 | ND | 0.647 ± 0.065 | 0.358 ± 0.030 | 0.119 ± 0.050 |
| 1452bF WRBtro1bF | Bithynia troschelii op | West Runton Bed D | 0.858 ± 0.013 | 0.520 ± 0.014 | 1.127 ± 0.074 | 0.657 ± 0.004 | 0.397 ± 0.003 | 0.133 ± 0.007 |
| 1452bH* WRBtro1bH* | Bithynia troschelii op | West Runton Bed D | 0.774 ± 0.003 | 0.396 ± 0.011 | 0.861 ± 0.005 | 0.594 ± 0.017 | 0.329 ± 0.006 | 0.144 ± 0.001 |
| 1453bF WRBtro2bF | Bithynia troschelii op | West Runton Bed D | 0.862 ± 0.011 | 0.521 ± 0.005 | 1.090 ± 0.067 | 0.661 ± 0.004 | 0.405 ± 0.013 | 0.120 ± 0.007 |
| 1453bH* WRBtro2bH* | Bithynia troschelii op | West Runton Bed D | 0.798 ± 0.002 | 0.398 ± 0.001 | 0.842 ± 0.009 | 0.590 ± 0.008 | 0.325 ± 0.011 | 0.137 ± 0.007 |
| 1454bF WRBtro3bF | Bithynia troschelii op | West Runton Bed D | 0.856 ± 0.016 | 0.508 ± 0.004 | 1.069 ± 0.007 | 0.661 ± 0.000 | 0.400 ± 0.04 | 0.130 ± 0.001 |
| 1454bH* WRBtro3bH* | Bithynia troschelii op | West Runton Bed D | 0.764 ± 0.015 | 0.382 ± 0.004 | 0.838 ± 0.004 | 0.594 ± 0.009 | 0.307 ± 0.014 | 0.153 ± 0.036 |
| 1455bF WRBtro4bF | Bithynia troschelii op | West Runton Bed D | 0.856 ± 0.008 | 0.511 ± 0.005 | 1.095 ± 0.054 | 0.650 ± 0.008 | 0.398 ± 0.000 | 0.121 ± 0.007 |
| 1455bH* WRBtro4bH* | Bithynia troschelii op | West Runton Bed D | 0.790 ± 0.047 | 0.407 ± 0.023 | 0.837 ± 0.022 | 0.604 ± 0.018 | 0.347 ± 0.037 | 0.143 ± 0.011 |
| 1972bF WRBtro6bF | Bithynia troschelii op | West Runton Bed D | 0.870 ± 0.003 | 0.526 ± 0.018 | 1.150 ± 0.026 | 0.651 ± 0.003 | 0.399 ± 0.007 | 0.124 ± 0.005 |
| 1972bH* WRBtro6bH* | Bithynia troschelii op | West Runton Bed D | 0.792 ± 0.006 | 0.426 ± 0.013 | 0.739 ± 0.005 | 0.622 ± 0.003 | 0.332 ± 0.002 | 0.143 ± 0.001 |
| 1973bF WRBtro7bF | Bithynia troschelii op | West Runton Bed D | 0.858 ± 0.002 | 0.527 ± 0.015 | 1.151 ± 0.013 | 0.679 ± 0.007 | 0.401 ± 0.003 | 0.123 ± 0.002 |
| 1973bH* WRBtro7bH* | Bithynia troschelii op | West Runton Bed D | 0.797 ± 0.004 | 0.392 ± 0.000 | 0.934 ± 0.002 | 0.598 ± 0.000 | 0.337 ± 0.004 | 0.140 ± 0.002 |
| 1974bF WRBtro8bF | Bithynia troschelii op | West Runton Bed D | 0.866 ± 0.002 | 0.517 ± 0.001 | 1.135 ± 0.013 | 0.680 ± 0.002 | 0.402 ± 0.003 | 0.119 ± 0.003 |
| 1974bH* WRBtro8bH* | Bithynia troschelii op | West Runton Bed D | 0.797 ± 0.002 | 0.397 ± 0.004 | 0.888 ± 0.007 | 0.595 ± 0.008 | 0.335 ± 0.002 | 0.128 ± 0.001 |
| 1975bF WRBtro9bF | Bithynia troschelii op | West Runton Bed D | 0.863 ± 0.001 | 0.516 ± 0.016 | 1.059 ± 0.031 | 0.675 ± 0.002 | 0.393 ± 0.001 | 0.125 ± 0.001 |
| 1975bH* WRBtro9bH* | Bithynia troschelii op | West Runton Bed D | 0.792 ± 0.001 | 0.392 ± 0.002 | 0.924 ± 0.003 | 0.624 ± 0.000 | 0.328 ± 0.001 | 0.132 ± 0.002 |
| 3317bF WRBtro10bF | Bithynia troschelii op | West Runton Bed D | 0.872 ± 0.006 | ND | 1.173 ± 0.018 | 0.674 ± 0.011 | 0.388 ± 0.001 | 0.136 ± 0.005 |
| 3317bH* WRBtro10bH* | Bithynia troschelii op | West Runton Bed D | 0.814 ± 0.000 | 0.367 ± 0.006 | 0.946 ± 0.004 | 0.620 ± 0.021 | 0.336 ± 0.006 | 0.143 ± 0.002 |
| 3318bF WRBtro11bF | Bithynia troschelii op | West Runton Bed D | 0.864 ± 0.003 | ND | 1.116 ± 0.028 | 0.689 ± 0.002 | 0.421 ± 0.003 | 0.128 ± 0.001 |
| 3318bH* WRBtro11bH* | Bithynia troschelii op | West Runton Bed D | 0.814 ± 0.008 | 0.378 ± 0.002 | 0.908 ± 0.004 | 0.632 ± 0.011 | 0.352 ± 0.007 | 0.128 ± 0.001 |