Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)
Yıl: 2021 Cilt: 6 Sayı: 2 Sayfa Aralığı: 270 - 277 Metin Dili: İngilizce DOI: 10.35229/jaes.913183 İndeks Tarihi: 29-07-2022
Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)
Öz: 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.
Anahtar Kelime: Çoruh Alabalığı (Salmo coruhensis Turan, Kottelat & Engin, 2010)’nda Sagittal Otolitlerin Morfometrik Analizi
Öz: 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.
Anahtar Kelime: Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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| APA | yıldız r, YILMAZ S (2021). Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). , 270 - 277. 10.35229/jaes.913183 |
| Chicago | yıldız recep,YILMAZ Savaş Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). (2021): 270 - 277. 10.35229/jaes.913183 |
| MLA | yıldız recep,YILMAZ Savaş Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). , 2021, ss.270 - 277. 10.35229/jaes.913183 |
| AMA | yıldız r,YILMAZ S Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). . 2021; 270 - 277. 10.35229/jaes.913183 |
| Vancouver | yıldız r,YILMAZ S Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). . 2021; 270 - 277. 10.35229/jaes.913183 |
| IEEE | yıldız r,YILMAZ S "Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)." , ss.270 - 277, 2021. 10.35229/jaes.913183 |
| ISNAD | yıldız, recep - YILMAZ, Savaş. "Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)". (2021), 270-277. https://doi.org/10.35229/jaes.913183 |
| APA | yıldız r, YILMAZ 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. 10.35229/jaes.913183 |
| Chicago | yıldız recep,YILMAZ Savaş Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). JOURNAL OF ANATOLIAN ENVIRONMENTAL AND ANIMAL SCIENCES 6, no.2 (2021): 270 - 277. 10.35229/jaes.913183 |
| MLA | yıldız recep,YILMAZ Savaş Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). JOURNAL OF ANATOLIAN ENVIRONMENTAL AND ANIMAL SCIENCES, vol.6, no.2, 2021, ss.270 - 277. 10.35229/jaes.913183 |
| AMA | yıldız r,YILMAZ S Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). JOURNAL OF ANATOLIAN ENVIRONMENTAL AND ANIMAL SCIENCES. 2021; 6(2): 270 - 277. 10.35229/jaes.913183 |
| Vancouver | yıldız r,YILMAZ S Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010). JOURNAL OF ANATOLIAN ENVIRONMENTAL AND ANIMAL SCIENCES. 2021; 6(2): 270 - 277. 10.35229/jaes.913183 |
| IEEE | yıldız r,YILMAZ S "Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)." JOURNAL OF ANATOLIAN ENVIRONMENTAL AND ANIMAL SCIENCES, 6, ss.270 - 277, 2021. 10.35229/jaes.913183 |
| ISNAD | yıldız, recep - YILMAZ, Savaş. "Morphometric Analysis of Sagittal Otoliths in Coruh Trout (Salmo coruhensis Turan, Kottelat & Engin, 2010)". JOURNAL OF ANATOLIAN ENVIRONMENTAL AND ANIMAL SCIENCES 6/2 (2021), 270-277. https://doi.org/10.35229/jaes.913183 |
