Figure 1
Figure 2
LWR parameters of C_ gibelio for females, males and combined sexes
| Female | Male | Combined sex | |
|---|---|---|---|
| n | 809 | 249 | 1058 |
| r | 0.985 | 0.985 | 0.986 |
| a | 0.014 | 0.015 | 0.018 |
| b | 3.039 | 3.038 | 2.965 |
| b(SE) | 0.018 | 0.033 | 0.014 |
| tcal | 2.196 | 1.166 | −2.342 |
Length distributions, L∞, maximum age, LWR parameters and the correlation coefficient in different studies from Turkey
| Localities | Author | Length (cm) | L∞(cm) | Max age | a | b | r |
|---|---|---|---|---|---|---|---|
| Lake Eğirdir | Balık et al., 2004FL | 9.0–33.0 | 33.30 | VI | 0.016 | 3.15 | 0.99 |
| Bostancı et al. 2007b İzci 2004CA | 8.2–28.1 - | - - | - VI | 0.015 0.021 | 3.17 3.05 | 0.98 - | |
| Özkök et al. 2007 | - | 38.90 | - | 0.016 | 3.12 | - | |
| Lake Bafra | Bostancı et al. 2007a | 16.9–30.0 | - | VII | 0.026 | 2.97 | 0.97 |
| Lake Beyşehir | Çınar et al. 2007FL | 7.1–27.4 | 36.20 | V | 0.013 | 3.18 | 0.94 |
| Lake Uluabat | Emiroğlu 2008* | 8.5–33.3 | 36.44 | VII | 0.016 | 3.03 | 0.85 |
| Lake İznik | Uysal et al. 2015FL | 7.8–32.2 | 40.00 | VI | 0.015 | 3.12 | 0.99 |
| Lake Ladik | Yazıcıoğlu 2013 | 13.4–26.5 | - | - | 0.016 | 3.14 | 0.99 |
| Buldan Reservoir | Sarı et al. 2008 | 9.7–25.5 | 31.60 | VI | 0.031 | 2.87 | 0.98 |
| Seyitler Reservoir | Bulut et al. 2013*FL | 14.8–32.5 | 48.09 | VII | 0.027 | 2.93 | 0.81 |
| Topçam Reservoir | Şaşı 2015FL | 23.8–29.5 | 41.46 | VI | 0.036 | 2.88 | 0.99 |
| Lake Vegoritis (Greece) | Tsoumani et al. 2006 | 16.2–33.2 | - | - | 0.009 | 3.25 | 0.98 |
| Lake Trichonis (Greece) | Tsoumani et al. 2006 | 28.0–37.7 | - | - | 0.004 | 3.38 | 0.97 |
| Danube River | Gheorghe et al. 2012 | 15.0–35.0 | 39.38 | - | 0.029 | 2.84 | 0.95 |
| İlhan et al. 2014 | 10.0–27.5 | - | - | - | - | - | |
| Lake Marmara | İlhan & Sarı 2015* Balık et al. 1991CA | 6.8–27.5 - | - 36.05 | - VI | 0.017 0.054 | 2.97 2.80 | 0.99 0.93 |
| This study* | 10.2–27.5 | 35.86 | VI | 0.018 | 2.95 | 0.99 |
Age–length relationship of C_ gibelio (CI: Confidence Interval; SD: Standard Deviation)
| Age | n | Length (cm) | ||||
|---|---|---|---|---|---|---|
| Min. | Max | Mean ± CI | SD | |||
| Female | I | 216 | 10.0 | 14.8 | 12.62 ± 0.117 | 0.979 |
| II | 306 | 14.2 | 18.5 | 16.79 ± 0.108 | 0.958 | |
| III | 235 | 16.8 | 23.5 | 19.43 ± 0.197 | 1.531 | |
| IV | 32 | 18.2 | 24.8 | 22.23 ± 0.716 | 1.986 | |
| V | 7 | 24.0 | 25.8 | 25.11 ± 0.529 | 0.572 | |
| VI | 13 | 26.0 | 27.5 | 26.77 ± 0.245 | 0.405 | |
| Male | I | 195 | 10.2 | 14.0 | 12.04 ± 0.102 | 0.718 |
| II | 36 | 13.0 | 18.7 | 16.11 ± 0.408 | 1.205 | |
| III | 14 | 17.0 | 21.5 | 19.00 ± 0.077 | 1.650 | |
| IV | 3 | 18.8 | 23.5 | 21.23 ± 4.773 | 1.922 | |
| V | 1 | 24.0 | 24.0 | 24.00 | - | |
| Combined sex | I | 411 | 10.0 | 14.8 | 12.34 ± 0.089 | 0.911 |
| II | 342 | 13.0 | 18.7 | 16.72 ± 0.107 | 1.009 | |
| III | 249 | 16.8 | 23.5 | 19.40 ± 0.192 | 1.541 | |
| IV | 35 | 18.2 | 24.8 | 22.25 ± 0.686 | 1.989 | |
| V | 8 | 24.0 | 25.8 | 24.98 ± 0.542 | 0.650 | |
| VI | 13 | 26.0 | 27.5 | 26.77 ± 0.245 | 0.405 | |
Von Bertalanffy growth parameters of C_ gibelio
| n | K (year−1) | t0 (year) | L∞ (cm) | |
|---|---|---|---|---|
| Female | 809 | 0.177 | −1.382 | 36.68 |
| Male | 249 | 0.178 | −1.573 | 35.40 |
| Combined sex | 1058 | 0.189 | −1.238 | 35.86 |
Age and sex ratio of C_ gibelio
| Females | Males | Combined Sex | F:M | ||||
|---|---|---|---|---|---|---|---|
| Age | n | % | n | % | n | % | |
| I | 216 | 20.42 | 195 | 18.43 | 411 | 38.85 | 1:0.90 |
| II | 306 | 28.92 | 36 | 3.40 | 342 | 32.33 | 1:0.11 |
| III | 235 | 22.21 | 14 | 1.32 | 249 | 23.53 | 1:0.05 |
| IV | 32 | 3.02 | 3 | 0.28 | 35 | 3.31 | 1:0.09 |
| V | 7 | 0.66 | 1 | 0.09 | 8 | 0.76 | 1:0.14 |
| VI | 13 | 1.23 | --- | --- | 13 | 1.23 | --- |
| Total | 809 | 76.47 | 249 | 23.53 | 1058 | 100.00 | 1:0.30 |