Figure 1

Figure 2

Figure 3

The length and weight distribution, mean length and weight and their standard errors of fish species
| Locality | Species | n | Lmin | Lmax | Lmean± SE | Wmin | Wmax | Wmean± SE |
|---|---|---|---|---|---|---|---|---|
| Aktaş Stream | Squalius fellowesii | 188 | 3.00 | 17.00 | 7.28 ± 0.258 | 0.28 | 58.27 | 7.72 ± 0.777 |
| Beydağ Reservoir | Perca fluviatilis | 42 | 6.40 | 20.50 | 7.55 ± 0.394 | 3.36 | 90.00 | 7.94 ± 2.591 |
| Aktaş Stream | Oxynoemacheilus eliasi* | 25 | 3.40 | 7.50 | 5.09 ± 0.290 | 0.32 | 3.75 | 1.35 ± 0.204 |
| Akgöl Lake | Cobitis fahireae* | 5 | 3.00 | 7.00 | 6.06 ± 0.690 | 0.16 | 2.36 | 1.79 ± 0.370 |
| Belevi Lake | Cyprinus carpio | 10 | 13.50 | 22.20 | 17.18 ± 0.861 | 39.98 | 197.43 | 104.24 ± 15.923 |
| Akgöl Lake | Carassius gibelio** | 50 | 7.00 | 22.00 | 14.35 ± 0.609 | 7.10 | 228.40 | 72.73 ± 8.102 |
| Gebekirse Lake | Atherina boyeri** | 59 | 5.80 | 9.50 | 6.76 ± 0.088 | 1.20 | 4.04 | 2.16 ± 0.084 |
Taxonomic updated fish species of Küçük Menderes River and its drainage, based on previous records
| No | Saç et al. (2021)* | İlhan et al. (2021)** | Current Taxonomic Status |
|---|---|---|---|
| 1 | Anguilla anguilla | Anguilla anguilla | Anguilla anguilla |
| 2 | Atherina boyeri | Atherina boyeri | Atherina boyeri |
| 3 | Cobitis fahireae | Cobitis fahireae | Cobitis fahireae |
| 4 | - | - | Cobitis afifeae |
| 5 | Barbus pergamonensis | - | Barbus pergamonensis |
| 6 | - | Luciobarbus lydianus | Luciobarbus lydianus |
| 7 | Carassius gibelio | Carassius gibelio | Carassius gibelio |
| 8 | Cyprinus carpio | Cyprinus carpio | Cyprinus carpio |
| 9 | Knipowitschia caucasica | - | Knipowitschia caucasica |
| 10 | Knipowitschia ricasolii | Knipowitschia ricasolii | Knipowitschia ricasolii |
| 11 | Alburnus demiri | - | Alburnus demiri |
| 12 | Petroleuciscus smyrnaeus | Petroleuciscus smyrnaeus | Petroleuciscus ninae |
| 13 | Squalius kosswigi | Squalius fellowesii | Squalius kosswigi |
| 14 | Chelon aurata | Chelon aurataus | Chelon aurata |
| 15 | Chelon ramada | Chelon ramada | Chelon ramada |
| 16 | Oxynoemacheilus germencicus | Oxynoemacheilus theophilii | Oxynoemacheilus eliasi |
| 17 | Perca fluviatilis | Perca fluviatilis | Perca fluviatilis |
| 18 | Gambusia holbrooki | Gambusia holbrooki | Gambusia holbrooki |
| 19 | Syngnathus abaster | - | Syngnathus abaster |
LWR parameters and growth types of fish species
| Species | n | a | b | SEb | R2 | SEr | ttest | GT |
|---|---|---|---|---|---|---|---|---|
| Squalius fellowesii | 188 | 0.012 | 2.980 | 0.038 | 0.980 | 0.086 | tcal = 0.653 < t0.05, n = 187 = 1.66 | I |
| Perca fluviatilis | 42 | 0.012 | 2.990 | 0.057 | 0.984 | 0.034 | tcal = 0.169 < t0.05, n = 41 = 1.68 | I |
| Oxynoemacheilus eliasi* | 25 | 0.009 | 2.959 | 0.081 | 0.964 | 0.042 | tcal = -0.497 > t0.05, n = 24 = 1.71 | I |
| Cobitis fahireae* | 5 | 0.004 | 3.176 | 0.067 | 0.986 | 0.058 | tcal = 2.643 < t0.05, n = 4 = 2.13 | A (+) |
| Cyprinus carpio | 10 | 0.013 | 3.121 | 0.204 | 0.966 | 0.043 | tcal = -0.006 < t0.05, n = 9 = 1.83 | I |
| Carassius gibelio** | 50 | 0.024 | 2.914 | 0.062 | 0.978 | 0.061 | tcal = 1.376 < t0.05, n = 49 = 1.68 | I |
| Atherina boyeri** | 59 | 0.008 | 2.884 | 0.195 | 0.792 | 0.060 | tcal = 0.591 < t0.05, n = 58 = 1.68 | I |
Condition factors (KF KR, and KM) with standard errors of specimens
| N | Min | Max | Mean | SD | Var | SE | CI | |
|---|---|---|---|---|---|---|---|---|
| Squalius fellowesii | ||||||||
| KF | 188 | 0.391 | 3.080 | 1.129 | 0.236 | 0.056 | 0.017 | 0.034 |
| KR | 188 | 0.350 | 2.746 | 1.018 | 0.211 | 0.045 | 0.015 | 0.030 |
| KM | 188 | 1.088 | 1.127 | 1.110 | 0.010 | 0.000 | 0.001 | 0.002 |
| Oxynoemachelius eliasi | ||||||||
| KF | 25 | 0.703 | 1.018 | 0.863 | 0.081 | 0.006 | 0.016 | 0.034 |
| KR | 25 | 0.346 | 1.568 | 1.114 | 0.042 | 0.044 | 0.042 | 0.085 |
| KM | 25 | 0.585 | 1.021 | 0.796 | 0.131 | 0.017 | 0.026 | 0.054 |
| Carassius gibelio | ||||||||
| KF | 50 | 0.975 | 2.456 | 1.964 | 0.239 | 0.057 | 0.034 | 0.068 |
| KR | 50 | 0.506 | 1.295 | 1.009 | 0.122 | 0.015 | 0.017 | 0.035 |
| KM | 50 | 1.869 | 2.062 | 1.948 | 0.054 | 0.003 | 0.008 | 0.015 |
| Atherina boyeri | ||||||||
| KF | 59 | 0.529 | 1.026 | 0.714 | 0.098 | 0.010 | 0.013 | 0.026 |
| KR | 59 | 0.663 | 1.513 | 1.064 | 0.206 | 0.043 | 0.027 | 0.054 |
| KM | 59 | 0.390 | 0.820 | 0.684 | 0.095 | 0.009 | 0.012 | 0.025 |
| Cobitis fahireae | ||||||||
| KF | 5 | 0.593 | 0.728 | 0.671 | 0.045 | 0.002 | 0.020 | 0.056 |
| KR | 5 | 0.815 | 0.975 | 0.902 | 0.053 | 0.002 | 0.020 | 0.056 |
| KM | 5 | 0.724 | 0.746 | 0.740 | 0.008 | 0.000 | 0.003 | 0.010 |
| Cyprinus carpio | ||||||||
| KF | 10 | 1.625 | 2.173 | 1.901 | 0.174 | 0.030 | 0.055 | 0.125 |
| KR | 10 | 0.882 | 1.157 | 1.004 | 0.091 | 0.008 | 0.029 | 0.065 |
| KM | 10 | 1.842 | 1.956 | 1.894 | 0.036 | 0.001 | 0.011 | 0.026 |
| Perca fluviatilis | ||||||||
| KF | 42 | 1.045 | 1.533 | 1.230 | 0.099 | 0.010 | 0.015 | 0.031 |
| KR | 42 | 0.855 | 1.260 | 1.003 | 0.081 | 0.007 | 0.012 | 0.025 |
| KM | 42 | 1.214 | 1.228 | 1.226 | 0.003 | 0.000 | 0.000 | 0.001 |