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Türkiye’den Salmo cinsine ait iki türün karşılaştırmalı otolit morfolojisi

Year 2024, Volume: 41 Issue: 1, 8 - 15, 15.03.2024

Melek Özpiçak Semra Saygın Savaş Yılmaz

https://doi.org/10.12714/egejfas.41.1.02

Abstract

Bu çalışmada, Terme Çayı (Samsun) ve Çam Deresi (Artvin)’nde yaşayan Salmo coruhensis Turan, Kottelat & Engin, 2010 ve Salmo fahrettini Turan, Kalayci, Bektaş, Kaya & Bayçelebi, 2020 türlerinin sagittal otolit morfolojileri taramalı elektron mikroskobu görüntüleri ile tanımlanmıştır. Otolit şekli ve dış hatları ayrıca, şekil indeksleri, eliptik Fourier katsayıları ve dalgacık dönüşümü ile analiz edilmiştir. Çalışma materyali olarak toplamda 30 S. coruhensis sample ve 20 S. fahrettini örneği elde edilmiştir. Otolit şekli ve morfometrisindeki türler arası farklılıklar, temel bileşenler analizi, kanonik ayrım analizi ve çok değişkenli varyans analizi ile değerlendirilmiştir. Çalışılan iki salmonid türü hem morfometrik hem de şekil analizi yöntemleriyle ayırt edilmiştir. Bununla birlikte, dalgacık dönüşümünün tür ayrımında şekil indeksleri ve Fourier katsayılarından daha etkili olduğu ve genel sınıflandırma başarı oranının %80 olduğu bulunmuştur. Sonuçlarımız sakkular otolit morfolojisinin alabalık türlerinin farklılaşmasında ek bir tanısal karakter olabileceğini göstermiştir.

Keywords

Otolit şekil indeksleri eliptik Fourier katsayısı dalgacık dönüşümü alabalık

References

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Comparative otolith morphology in two species of Salmo genus from Türkiye

Year 2024, Volume: 41 Issue: 1, 8 - 15, 15.03.2024

Melek Özpiçak Semra Saygın Savaş Yılmaz

https://doi.org/10.12714/egejfas.41.1.02

Abstract

In this study, the morphology of the sagittal otolith of Salmo coruhensis Turan, Kottelat & Engin, 2010 and Salmo fahrettini Turan, Kalayci, Bektaş, Kaya & Bayçelebi, 2020 from Çam Stream (Artvin) and Terme Stream (Samsun) was described by images of scanning electron microscopy. Its shape and contour were also analyzed with shape indices, elliptic Fourier coefficients and wavelet transforms. As the study material, a total of 30 S. coruhensis sample and 20 S. fahrettini sample were obtained. Interspecies differences in otolith shape and morphometry were evaluated by principal components analysis, canonical discrimination analysis, and permutational multivariate analysis of variance. The two salmonid species studied were distinguished by both morphometric and shape analysis methods. However, wavelet transform was found to be more effective than shape indices and elliptic Fourier coefficients in species discrimination, with an overall classification success rate of 80%. Our results showed that saccular otolith morphology could be an additional diagnostic character for trout species differentiation.

Keywords

Otolith shape indices elliptic Fourier coefficients wavelet transform Salmonid

Ethical Statement

The care and use of experimental animals, sampling and analysis techniques used in this work are approved by Ondokuz Mayıs University Animal Experiments Local Ethics Committee with decree no “2017/38”

Thanks

The authors are thankful to Recep YILDIZ for sampling S. coruhensis individuals.

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  • Assis, I.O., da Silva, V.E., Souto-Vieira, D., Lozano, A.P., Volpedo, A. V., & Fabré, N.N. (2020). Ecomorphological patterns in otoliths of tropical fishes: assessing trophic groups and depth strata preference by shape. Environmental Biology of Fishes, 103(4), 349-361. https://doi.org/10.1007/s10641-020-00961-0
  • Bardakci, F., Degerli, N., Ozdemir, O., & Basibuyuk, H.H. (2006). Phylogeography of the Turkish brown trout Salmo trutta L.: mitochondrial DNA PCR‐RFLP variation. Journal of Fish Biology, 68(A), 36-55. https://doi.org/10.1111/j.0022-1112.2006.00948.x
  • Bardakci, F., Tanyolac, J., Akpinar, M.A., & Erdem, U. (1994). Morphological comparison of trout (Salmo trutta L., 1766) populations caught from streams in Sivas. Turkish Journal of Zoology, 18, 1-6.
  • Bernatchez, L. (2001). The evolutionary history of brown trout (Salmo trutta L.) inferred from phylogeographic, nested clade, and mismatch analyses of mitochondrial DNA variation. Evolution, 55, 351-379. https://doi.org/10.1111/j.0014-3820.2001.tb01300.x
  • Berrebi, P., Barucchi, V.C., Splendiani, A., Muracciole, S., Sabatini, A., Palmas, F., Tougard, C., Arculeo, M., & Marić, S. (2019). Brown trout (Salmo trutta L.) high genetic diversity around the Tyrrhenian Sea as revealed by nuclear and mitochondrial markers. Hydrobiologia, 826(1), 209-231. https://doi.org/10.1007/s10750-018-3734-5
  • Bourehail, N., Morat, F., Lecomte-Finiger, R., & Kara, M. H. (2015). Using otolith shape analysis to distinguish barracudas Sphyraena sphyraena and Sphyraena viridensis from the Algerian coast. Cybium, 39(4), 271-278.
  • Campana, S.E., & Casselman, J.M. (1993). Stock discrimination using otolith shape analysis, Canadian Journal of Fisheries and Aquatic Science, 50(5), 1062–1083. https://doi.org/10.1139/f93-123
  • Çöl, O., & Yilmaz, S. (2022). The effect of ontogenetic diet shifts on sagittal otolith shape of European perch, Perca fluviatilis (Actinopterygii: Percidae) from Lake Ladik, Turkey. Turkish Journal of Zoology, 46(4), 385-396. https://doi.org/10.55730/1300-0179.3090
  • Crampton, J.S. (1995). Elliptic Fourier shape analysis of fossil bivalves, practical consideration. Lethaia, 28, 179-186. https://doi.org/10.1111/j.1502-3931.1995.tb01611.x
  • D’Iglio, C., Natale, S., Albano, M., Savoca, S., Famulari, S., Gervasi, C., Lanteri, G., Panarello, G., Spanò, N., & Capillo, G. (2022). Otolith analyses highlight morpho-functional differences of three species of mullet (Mugilidae) from transitional water. Sustainability, 14, 398. https://doi.org/10.3390/su140103988
  • Delling, B., Sabatini, A., Muracciole, S., Tougard, C., & Berrebi, P. (2020). Morphologic and genetic characterization of Corsican and Sardinian trout with comments on Salmo taxonomy. Knowledge and Management of Aquatic Ecosystems, 421(21). https://doi.org/10.1051/kmae/2020013
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There are 64 citations in total.

Details

Primary Language English
Subjects Hydrobiology
Journal Section Articles
Authors

Melek Özpiçak 0000-0003-3506-4242

Semra Saygın 0000-0002-3249-5074

Savaş Yılmaz 0000-0003-2859-4886

Early Pub Date March 11, 2024
Publication Date March 15, 2024
Submission Date October 26, 2023
Acceptance Date December 25, 2023
Published in Issue Year 2024Volume: 41 Issue: 1

Cite

APA Özpiçak, M., Saygın, S., & Yılmaz, S. (2024). Comparative otolith morphology in two species of Salmo genus from Türkiye. Ege Journal of Fisheries and Aquatic Sciences, 41(1), 8-15. https://doi.org/10.12714/egejfas.41.1.02