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An ichthyofaunal amendment with the length-weight relations and condition factors of some endemic and invasive freshwater fishes from Western Anatolia

Irmak Kurtul
Irmak Kurtul
, 
Cüneyt Kaya
Cüneyt Kaya
, 
Arda Şen
Arda Şen
, 
Ceylin Özcan
Ceylin Özcan
, 
Deniz Ercivan
Deniz Ercivan
, 
Kaan Demiral
Kaan Demiral
, 
Melike Güngör
Melike Güngör
, 
Ali İlhan
Ali İlhan
 and 
Hasan Musa Sarı
Hasan Musa Sarı
   | Dec 31, 2023
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Article Category: Original Research Paper
Published Online: Dec 31, 2023
Page range: 389 - 398
Received: Apr 06, 2023
Accepted: Jul 28, 2023
DOI: https://doi.org/10.26881/oahs-2023.4.01
© 2023 Irmak Kurtul et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Sampling sites in the study area
Sampling sites in the study area

Figure 2

Some of the sampling sites in the Küçük Menderes catchment: a. Lake Belevi; b. Lake Gebekirse; c. Beydağ Reservoir; d. Aktaş Stream.
Some of the sampling sites in the Küçük Menderes catchment: a. Lake Belevi; b. Lake Gebekirse; c. Beydağ Reservoir; d. Aktaş Stream.

Figure 3

Living form of two endemics: Cobitis fahireae, 60 mm SL (upper) and Oxynoemacheilus eliasi, 68 mm SL (lower).
Living form of two endemics: Cobitis fahireae, 60 mm SL (upper) and Oxynoemacheilus eliasi, 68 mm SL (lower).

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
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