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Describing biological parameters of several endemic Salmo species from the Caspian Sea and Persian Gulf basins

Esra Bayçelebi

Esra Bayçelebi

Faculty of Fisheries, Recep Tayyip Erdogan UniversityRize, Türkiye
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Bayçelebi, Esra
, 
Irmak Kurtul

Irmak Kurtul

  • Marine and Inland Waters Sciences and Technology Department, Faculty of Fisheries, Ege Universityİzmir, Türkiye
  • Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth UniversityPoole, the United Kingdom
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Kurtul, Irmak
, 
Hatice Onay

Hatice Onay

Faculty of Fisheries, Recep Tayyip Erdogan UniversityRize, Türkiye
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Onay, Hatice
, 
Cüneyt Kaya

Cüneyt Kaya

Faculty of Fisheries, Recep Tayyip Erdogan UniversityRize, Türkiye
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Kaya, Cüneyt
, 
Phillip J. Haubrock

Phillip J. Haubrock

  • University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of HydrocenosesVodňany, Czech Republic
  • Center for Applied Mathematics and Bioinformatics, Department of Mathematics and Natural Sciences, Gulf University for Science and TechnologyHawally, Kuwait
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Haubrock, Phillip J.
 and 
Davut Turan

Davut Turan

Faculty of Fisheries, Recep Tayyip Erdogan UniversityRize, Türkiye
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Turan, Davut
  
Apr 15, 2025
Describing biological parameters of several endemic Salmo species from the Caspian Sea and Persian Gulf basins's Cover Image
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Article Category: Original research papers
Published Online: Apr 15, 2025
Page range: 21 - 32
Received: Jul 30, 2024
Accepted: Dec 31, 2024
DOI: https://doi.org/10.26881/oahs-2025.1.03
Keywords
© 2025 Esra Bayçelebi et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

The sampling sites where the material examined for this study was collected.
The sampling sites where the material examined for this study was collected.

Figure 2

The salmonids examined in this study: (A) Salmo baliki, FFR 3242, holotype, 212 mm SL, male, Sinek Stream; (B) S. murathani, FFR 3228, paratype, 241 mm SL, female, Arpaçay Stream; (C) S. araxensis, FFR 3224, holotype, 259 mm SL, male, Kırkpınar Stream; (D) S. fahrettini, FFR03231, holotype, 232 mm SL, male, Stream Ömertepesuyu; (E) S. munzuricus, FFR 3226, 240 mm SL, male, stream Alakoçlu; (F) S. ardahanensis, FFR 3239, holotype, 222 mm SL, male, Toros Stream.
The salmonids examined in this study: (A) Salmo baliki, FFR 3242, holotype, 212 mm SL, male, Sinek Stream; (B) S. murathani, FFR 3228, paratype, 241 mm SL, female, Arpaçay Stream; (C) S. araxensis, FFR 3224, holotype, 259 mm SL, male, Kırkpınar Stream; (D) S. fahrettini, FFR03231, holotype, 232 mm SL, male, Stream Ömertepesuyu; (E) S. munzuricus, FFR 3226, 240 mm SL, male, stream Alakoçlu; (F) S. ardahanensis, FFR 3239, holotype, 222 mm SL, male, Toros Stream.

j_oahs-2025_1_03_tab_004

Basin Coordinate Date Species FFR N
Kırkpınar Stream, Aras River, Caspian Sea Basin 40.854 43.0189 3.09.2006 Salmo araxensisa 3122 18
Stream Toros, Kura River, Caspian Sea Basin 41.100 42.433 21.09.2014 Salmo ardahanensisa 3164 10
Keklik Stream, Aras River, Caspian Sea Basin 40.283 42.650 6.09.2006 Salmo murathania 3121 41
Arpaçay Stream, Aras River, Caspian Sea Basin 40.912 43.172 26.07.2017 3228
Murat River, Persian Gulf Basin 39.731 43.482 5.09.2006 Salmo balikia 3205 10
Stream Sinek, A Tributary of Murat River, Persian Gulf Basin 39.758 43.464 29.08.2019 3234
Stream Tekke, Euphrates River Persian Gulf Basin 39.759 43.464 4.09.2006 Salmo fahrettinia 3232 17
Stream Ömertepe, Euphrates River Persian Gulf Basin 39.796 40.944 28.07.2007 3232
Stream Mengel, Euphrates River Persian Gulf Basin 39.314 41.163 2.06.2021 Salmo munzuricusa 3241 40
Munzur Stream, Euphrates River, Persian Gulf Basin 39.346 39.132 19.10.2009 3147
A Tributary of Murat River, Persian Gulf Basin 39.475 43.267 29.08.2019 3235
Munzur Stream, Euphrates River, Persian Gulf Basin 9.347 39.134 26.10.2013 3162

Information of the studied locations_

Species Locality Latitude Longitude Year
Salmo araxensis Kırkpınar Stream, Aras River, Caspian Sea Basin 40.854 43.019 2006
Salmo ardahanensis Stream Toros, Kura River, Caspian Sea Basin 41.100 42.433 2014
Salmo baliki Stream Sinek 1, A Tributary of Murat River, Persian Gulf Basin 39.731 43.482 2006
Stream Sinek 2, A Tributary of Murat River, Persian Gulf Basin 39.758 43.464 2019
Salmo fahrettini Stream Tekke, Euphrates River Persian Gulf Basin 39.819 41.152 2006
Stream Ömertepe, Euphrates River Persian Gulf Basin 39.796 40.944 2007
Salmo munzuricus Stream Mengel, Euphrates River, Persian Gulf Basin 39.314 41.163 2021
Munzur Stream, Euphrates River, Persian Gulf Basin 39.346 39.132 2009
A Tributary of Murat River, Persian Gulf Basin 39.475 43.267 2019
Munzur Stream, Euphrates River, Persian Gulf Basin 39.347 39.134 2013
Salmo murathani Keklik Stream, Aras River, Caspian Sea Basin 40.283 42.650 2006
Arpaçay Stream, Aras River, Caspian Sea Basin 40.912 43.172 2017

The parameters of the length–weight relationships of species with its statistical results, GT with t-test results and CF parameters with SD_

Species Site n a b r2 SE (b) t-test GT CFmin–CFmax CFmean (SD)
S. araxensis Kırkpınar Stream 18 0.0076 3.1510 0.99 0.001 tcal = 151 > t0.05, n = 18 = 2.10 A (+) 0.838–1.132 0.998 (0.001)
S. ardahanensis Stream Toros 10 0.0118 3.0032 0.98 0.023 tcal = 0.14 < t0.05, n = 10 = 2.28 A (−) 0.941–1.072 1.003 (0.013)
S. baliki Overall 10 0.0033 3.4440 0.98 0.015 tcal = 29.6 > t0.05, n = 10 = 2.28 A (+) 0.882–1.077 0.998 (0.022)
Stream Sinek 1 3 0.0197 2.8814 0.99 0.0265 tcal = −4.48 > t0.05, n = 3 = 3.18 A (−) 0.88–1.06 0.98 (0.044)
Stream Sinek 2 7 0.0024 3.5478 0.99 0.0171 tcal = 32.03 > t0.05, n = 7 = 2.36 A (+) 0.89–1.07 1.00 (0.025)
S. fahrettini Overall 17 0.0090 3.1440 0.98 0.007 tcal = 20.57 > t0.05, n = 17 = 2.11 A (+) 0.896–1.097 0.999 (0.014)
Stream Tekke 2 - - - – - - - -
Stream Ömertepe 15 0.0104 3.0684 0.99 0.0065 tcal = 10.52 > t0.05, n = 15 = 2.28 A (+) 0.89–1.07 0.98 (0.013)
S. munzuricus Overall 40 0.0088 3.1052 0.97 0.006 tcal = 17.53 > t0.05, n = 40 = 2.02 A (+) 0.779–1.314 1.010 (0.019)
Stream Mengel 4 0.0066 3.2673 0.99 0.0138 tcal = 19.37 > t0.05, n = 4 = 2.78 A (+) 1.12–1.31 1.19 (0.036)
Munzur Stream 7 0.0118 2.9768 0.93 0.0906 tcal = 0.26 > t0.05, n = 7 = 2.36 I 0.80–1.09 0.91 (0.033)
Murat River Tributary 15 0.0056 3.2481 0.98 0.0129 tcal = 213.33 > t0.05, n = 15 = 2.13 A (+) 0.77–1.28 0.99 (0.026)
Munzur Stream 14 0.0089 3.1072 0.99 0.0139 tcal = 7.72 > t0.05, n = 14 = 2.14 A (+) 0.91–1.19 1.02 (0.028)
S. murathani Overall 41 0.0080 3.1475 0.98 0.0007 tcal = 21.07 > t0.05, n = 41 = 2.02 A (+) 0.875–1.131 0.998 (0.011)
Keklik Stream 18 0.0091 3.0929 0.99 0.0015 tcal = 61.93 > t0.05, n = 18 = 2.10 A (+) 087–1.13 0.99 (0.016)
Arpaçay Stream 23 0.0055 3.2799 0.98 0.0046 tcal = 0.27 > t0.05, n = 23 = 2.07 I 0.88–1.12 1.00 (0.015)

Total length and total weight distribution with their min, max, and mean values and SD_

Species Site n Lmin Lmax Lmean SD Wmin Wmax Wmean SD
S. araxensis Kırkpınar Stream 18 6.9 29.5 14.73 1.772 3.56 334.40 73.34 24.428
S. ardahanensis Stream Toros 10 19.0 27.1 23.60 0.680 76.95 233.63 154.14 12.758
S. baliki Overall 10 16.2 30.6 22.77 1.496 43.05 451.60 183.89 38.781
Stream Sinek 1 3 20.7 29.6 24.76 1.95 119.94 316.63 214.44 46.46
Stream Sinek 2 7 16.2 30.6 21.91 1.87 43.05 451.6 170.80 50.90
S. fahrettini Overall 17 12.9 26.7 18.59 0.808 25.60 233.75 89.31 12.243
Stream Tekke 2 20.7 21.8 21.25 0.38 123.89 141.88 132.88 6.36
Stream Ömertepe 15 12.9 26.7 18.24 0.87 25.6 233.75 83.50 13.14
S. munzuricus Overall 40 12.7 31.8 21.36 0.805 27.10 441.19 143.01 16.787
Stream Mengel 4 12.7 23.6 17.62 2.26 27.1 193.96 97.53 35.05
Munzur Stream 7 17.1 25.3 21.15 1.08 52.2 170.51 110.16 15.80
Murat River Tributary 15 14 28.3 21.73 1.23 30.87 281.48 146.09 23.86
Munzur Stream 14 15 31.8 22.14 1.58 37.64 441.19 169.13 36.79
S. murathani Overall 41 7.3 27.7 16.02 0.836 4.43 296.09 69.69 11.037
Keklik Stream 18 7.3 27.1 13.9 1.40 4.43 227.12 53.17 16.02
Arpaçay Stream 23 11.3 27.7 11.3 0.86 16.69 296.09 82.62 14.60
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