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Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)

Year 2021, Volume: 6 Issue: 2, 270 - 277, 30.06.2021

Recep Yıldız Savaş Yılmaz

https://doi.org/10.35229/jaes.913183
Cited By: 1

Abstract

The Coruh trout (Salmo coruhensis Turan, Kottelat & Engin, 2010) is a freshwater fish species endemic to Turkey. This study describes the allometric relationships between sagittal otolith (sagitta) measurements and total length (TL) of the Coruh trout collected from the Çam stream (Artvin, Turkey), and the length-weight relationship. A total of 82 individuals were caught with an electroshock device between May 2017 and April 2018. The length (LO), height (HO), weight (WO), perimeter (PO), and area (AO) of the otolith were recorded for each specimen. Shape indices such as shape factor, aspect ratio, circularity, roundness, rectangularity, ellipticity, surface density were calculated using these otolith measurements. Relationships between otolith variables and the somatic growth of fish were defined by the curvilinear function (power model). An analysis of covariance revealed that these relationships did not differ between the left and right sides, and between females and males. All regressions were highly significant (P < 0.001) and mean percent prediction error values were less than 7 %. The relationships of LO, HO, WO, and PO against TL were negative allometric, while the TL-AO relationship was positive allometric. In the analysis of relationships between the otolith shape indices and TL, the values of form factor, roundness, and rectangularity indices decreased with fish somatic growth. In contrast, the circularity and surface density indices increased with fish body length. The length-weight relationship was obtained as W = 0.0155*TL2.87 for overall samples. The difference between the slopes of LWRs of females and males was found insignificant. This study provides the first comprehensive data on the sagittal otolith morphometry of S. coruhensis.

Keywords

length-weight relationship otolith morphometry Salmo coruhensis shape index

Thanks

The authors would like to thank Enes HANÇER and Aykut AYDIN for their assistance in sampling and laboratory processes.

References

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Çoruh Alabalığı (Salmo coruhensis Turan, Kottelat & Engin, 2010)’nda Sagittal Otolitlerin Morfometrik Analizi

Year 2021, Volume: 6 Issue: 2, 270 - 277, 30.06.2021

Recep Yıldız Savaş Yılmaz

https://doi.org/10.35229/jaes.913183
Cited By: 1

Abstract

Çoruh Alabalığı (Salmo coruhensis Turan, Kottelat & Engin, 2010), Türkiye’ye endemik bir tatlısu balık türüdür. Bu çalışma, Çam Deresi (Artvin, Türkiye)’nden toplanan S. coruhensis’in total boyu ile sagittal otolit (sagitta) ölçümleri arasındaki allometrik ilişkileri ve boy-ağırlık ilişkisini tanımlar. Mayıs 2017 ve Nisan 2018 tarihleri arasında elektroşok cihazı ile toplam 82 birey yakalandı. Her bir örnek için otolitin boyu (LO), yüksekliği (HO), ağırlığı (WO), çevresi (PO) ve alanı (AO) kaydedildi. Otolit ölçümleri kullanılarak şekil faktörü, boy-yükseklik oranı, dairesellik, yuvarlaklık, dikdörtgensellik, ovallik, yüzey yoğunluğu gibi şekil indeksleri hesaplandı. Otolit değişkenleri ile balık somatik büyümesi arasındaki ilişkiler eğrisel fonksiyonla (power model) tanımlandı. Kovaryans analizi, bu ilişkilerin sol-sağ bölge ve dişi-erkek bireyler arasında farklılık göstermediğini ortaya çıkardı. Tüm ilişkiler oldukça önemliydi (P < 0,001) ve ortalama yüzde tahmin hatası değerleri %7’den azdı. TL-LO, TL-HO, TL-WO ve TL-PO ilişkileri negatif allometrik iken TL-AO ilişkisi pozitif allometrik çıktı. Otolit şekil indeksleri ile balık boyu arasındaki ilişkiler analiz edildiğinde; şekil faktörü, yuvarlaklık ve dikdörtgensellik indeksi değerleri balık somatik büyümesi ile azaldı. Buna karşılık dairesellik ve yüzey yoğunluğu indeksi değerleri balık vücut uzunluğu ile arttı. Tüm bireyler için boy-ağırlık ilişkisi W = 0,0155*TL2.87 olarak elde edildi. Dişi ve erkeklerin boy-ağırlık ilişkilerinin b parametresi arasındaki fark önemsiz bulundu. Bu çalışma, S. coruhensis’in sagittal otolit morfometrisi hakkında ilk kapsamlı verileri sağlar.

Keywords

boy-ağırlık ilişkisi otolit morfometrisi Salmo coruhensis şekil indeksi

References

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  • Bani, A., Poursaeid, S. & Tuset, V.M. (2013). Comparative morphology of the sagittal otolith in three species of South Caspian gobies. Journal of Fish Biology, 82, 1321-1332. Doi: 10.1111/jfb.12073
  • Battaglia, P., Malara, D., Ammendolia, G., Romeo, T. & Andaloro, F. (2015). Relationships between otolith size and fish lenght in some mesopelagic teleosts (Myctophidae, Paralepididae, Phosichthyidae and Stomiidae). Journal of Fish Biology, 87, 774-782. Doi: 10.1111/jfb.12744
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  • Deepa, K.P., Kumar, K.A., Kottnis, O., Nikki, R., Bineesh, K.K., Hashim, M., Saravanane, N. & Sudhakar, M. (2019). Population variations of Opal fish, Bembrops caudimacula Steindachner, 1876 from Arabian Sea and Andaman Sea: Evidence from otolith morphometry. Regional Studies in Marine Science, 25, 100466. Doi: 10.16/j.rsma.2018.100466
  • Dehghani, M., Kamrani, E., Salarpouri, A. & Sharifian, S. (2016). Otolith dimensions (length, width), otolith weight and fish length of Sardinella sindensis (Day, 1878), as index for environmental studies, Persian Gulf, Iran. Marine Biodiversity Records, 9(44), 1-6. Doi: 10.1186/s41200-016-0039-0
  • Dortbudak, M.Y. & Ozcan, G. (2019). Otolith-body length relationship of Abu Mullet (Planiliza abu (Heckel, 1843)) in Tigris River, Şırnak, Turkey. Fresenius Environmental Bulletin, 28(10), 7088-7091.
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  • Harvey, J.T., Loughlin, T.R., Perez, M.A. & Oxman, D.S. (2000). Relationship between fish size and otolith length for 63 species of fishes from the Eastern North Pacific Ocean (Report No. 150). NOAA Technical Report NMFS 150, U.S. Department of Commerce Seattle, Washington, 36p.
  • He, T., Chen, C.J., Qin, J.G., Li, Y., Wu, R.H. & Gao, T.X. (2020). The use of otolith shape to identify stocks of Redlip Mullet, Liza haematocheilus. Pakistan Journal of Zoology, 52(6), 2265-2273.
  • Iranmanesh, M., Hesni, M.A. & Lashkari, M. (2020). Otolith measurements to estimate standard length of gobiid fish (Teleostei: Gobiiformes) from the Persian Gulf and Oman Sea. Indian Journal of Fisheries, 67(4), 138-142. Doi: 10.21077/ijf.2020.67.4.97732-16
  • Jawad, L., Al-Mamry, J. & Al-Busaidi, H. (2011). Relationship between fish length and otolith length and width in the lutjanid fish, Lutjanus bengalensis (Lutjanidae) collected from Muscat City coast on the Sea of Oman. Journal of the Black Sea/Mediterranean Environment, 17(2), 116-126.
  • Kanjuh, T., Mrdak, D., Piria, M., Tomljanovic, T., Joksimovic, A., Talevski, T. & Milosevic, D. (2018). Relationships of otolith dimension with body length of European eel Anguilla anguilla (Linnaeus, 1758) from Adriatic catchment of Montenegro. Acta Adriatica, 59(1), 91-96. Doi:10.32582/aa.59.1.7
  • Kumar, K. V., Deepa, K. P., Hashis, M., Vasu, C. & Sudhakar, M. (2017). Relationship between fish size and otolith size of four bathydemersal fish species from the South eastern Arabian Sea, India. Journal of Applied Ichthyology, 33, 102-107. Doi:10.1111/jai.13250
  • Lleonart, J., Salat, J. & Torres, G.J. (2000). Removing allometric effects of body size in morphological analysis. Journal of Theoretical Biology, 205, 85-93.
  • Mazlum, R. E. & Turan, D. (2018). Length-weight relationship for twelve species of the genus Salmo L., 1758 (Actinopterygii: Salmonidae) from inland waters of Turkey. Acta Zoologica, 70(3), 407-413.
  • Mérigot, B., Letourneur, Y. & Lecomte-Finiger, R. (2007). Characterization of local populations of the common sole Solea solea (Pisces, Solediae) in the NW Metiterranean through otolith morphometrics and shape analysis. Marine Biology, 151, 997-1008. doi:10.1007/s00227-006-0549-0
  • Morley, S. & Belchier, M. (2002). Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in Ccamlr Subarea 48.3. Ccamlr Science, 9, 133-143. Nelson, J. S. (2006). Fishes of the world (Fourth Edition). John Wiley and Sons, Incorporated, 601, Canada.
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There are 48 citations in total.

Details

Primary Language English
Journal Section Articles
Authors

Recep Yıldız This is me 0000-0001-6211-831X

Savaş Yılmaz 0000-0002-6979-6495

Publication Date June 30, 2021
Submission Date April 11, 2021
Acceptance Date May 7, 2021
Published in Issue Year 2021 Volume: 6 Issue: 2

Cite

APA Yıldız, R., & Yılmaz, S. (2021). Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). Journal of Anatolian Environmental and Animal Sciences, 6(2), 270-277. https://doi.org/10.35229/jaes.913183

Cited By

Comparative otolith morphology in two species of Salmo genus from Türkiye
Ege Journal of Fisheries and Aquatic Sciences
https://doi.org/10.12714/egejfas.41.1.02
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