Comparison of Whole and Section Otolith Methods for Age Determination of Carp (Cyprinus carpio)

Aykut Aydın; Nazmi Polat; Semra Saygın; Melek Özpiçak; Savaş Yılmaz

Article Details

Comparison of Whole and Section Otolith Methods for Age Determination of Carp (Cyprinus carpio)

Authors:

Aykut Aydın | Nazmi Polat | Semra Saygın | Melek Özpiçak | Savaş Yılmaz

Publisher:

Van Yuzuncu Yıl University

Journal:

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.28 Issue 1, pp.164-174

Document Type:

Article

Publication Date:

4/2023

Document Language:

Turkish

Document ID (Org No.):

2001287444

pISSN:

1300-5413

Keywords:

Abstract:

 This study aims to determine the reliability of age determination by comparing whole and section otoliths of Cyprinus carpio species living in Altınkaya Dam Lake ADL and Bafra Fish Lakes BFL. Fish samples 117 individuals were obtained between 2017-2018, and the total lengths of each fish were measured 0.1 cm and their weights 0.01 g were weighed. Ages were determined from the distal surfaces of all otoliths asteriscus and transversal sections were taken. Percent agreement, average percent error and coefficient of variation were calculated. In the population, total lengths ranged between 17.8-69.3 cm and weights ranged between 67.57-5412 g. The ages read in whole and section otoliths were determined as 2-6, 2-7 in ADL and 1-8, 0-7 in BFL, respectively. The section otolith method has the highest percentage agreement 75.43 and 71.67, respectively, the lowest mean percent error 3.89, 3.98 and coefficient of variation 5.11, 5.29 for ADL and BFL. For the age determination of C.carpio species in both areas, our results indicate that the age determination based on the section otolith method provides more reliable results than the whole otolith method.

 This study aims to determine the reliability of age determination by comparing whole and section otoliths of Cyprinus carpio species living in Altınkaya Dam Lake ADL and Bafra Fish Lakes BFL. Fish samples 117 individuals were obtained between 2017-2018, and the total lengths of each fish were measured 0.1 cm and their weights 0.01 g were weighed. Ages were determined from the distal surfaces of all otoliths asteriscus and transversal sections were taken. Percent agreement, average percent error and coefficient of variation were calculated. In the population, total lengths ranged between 17.8-69.3 cm and weights ranged between 67.57-5412 g. The ages read in whole and section otoliths were determined as 2-6, 2-7 in ADL and 1-8, 0-7 in BFL, respectively. The section otolith method has the highest percentage agreement 75.43 and 71.67, respectively, the lowest mean percent error 3.89, 3.98 and coefficient of variation 5.11, 5.29 for ADL and BFL. For the age determination of C.carpio species in both areas, our results indicate that the age determination based on the section otolith method provides more reliable results than the whole otolith method.

 This study aims to determine the reliability of age determination by comparing whole and section otoliths of Cyprinus carpio species living in Altınkaya Dam Lake ADL and Bafra Fish Lakes BFL. Fish samples 117 individuals were obtained between 2017-2018, and the total lengths of each fish were measured 0.1 cm and their weights 0.01 g were weighed. Ages were determined from the distal surfaces of all otoliths asteriscus and transversal sections were taken. Percent agreement, average percent error and coefficient of variation were calculated. In the population, total lengths ranged between 17.8-69.3 cm and weights ranged between 67.57-5412 g. The ages read in whole and section otoliths were determined as 2-6, 2-7 in ADL and 1-8, 0-7 in BFL, respectively. The section otolith method has the highest percentage agreement 75.43 and 71.67, respectively, the lowest mean percent error 3.89, 3.98 and coefficient of variation 5.11, 5.29 for ADL and BFL. For the age determination of C.carpio species in both areas, our results indicate that the age determination based on the section otolith method provides more reliable results than the whole otolith method.

 Bu çalışmada, Altınkaya Baraj Gölü ABG ve Bafra Balık Gölleri BBGnde yaşayan Cyprinus carpio türünün bütün ve kesit otolitlerinin karşılaştırılarak yaş tayininde güvenirliliğinin belirlenmesi amaçlanmıştır. Balık örnekleri 117 birey 2017-2018 tarihlerinde temin edilmiş, her bir balığın total boyları ölçülmüş 0.1 cm ve ağırlıkları 0.01 g tartılmıştır. Bütün otolitlerin asteriskus distal yüzeylerinden yaşları belirlenmiş, transversal kesitler alınmıştır. Yüzde uyum, ortalama yüzde hata ve değişim katsayısı hesaplanmıştır. Populasyon genelinde total boylar 17.8-69.3 cm, ağırlıklar 67.57-5412 g arasında değişmiştir. Bütün ve kesit otolitlerde okunan yaşlar ABGde sırasıyla 2-6, 2-7, BBGde sırasıyla 1-8, 0-7 olarak belirlenmiştir. ABG ve BBGde yüzde uyumun en yüksek sırasıyla; 75.43, 71.67, ortalama yüzde hata 3.89, 3.98 ve değişim katsayısının en düşük 5.11, 5.29 olduğu kesit otolit yöntemidir. Her iki alanda da C.carpio türünün yaş tayini için elde ettiğimiz sonuçlar, kesit otolit yönteminin yaş belirlemede bütün otolit yöntemine göre daha güvenilir olduğunu göstermiştir.

Article Details

Comparison of Whole and Section Otolith Methods for Age Determination of Carp (Cyprinus carpio)

Authors:

Aykut Aydın | Nazmi Polat | Semra Saygın | Melek Özpiçak | Savaş Yılmaz

Publisher:

Van Yuzuncu Yıl University

Journal:

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.28 Issue 1, pp.164-174

Document Type:

Article

Publication Date:

4/2023

Document Language:

Turkish

Document ID (Org No.):

2001287444

pISSN:

1300-5413

Age determination

Asteriscus

Cyprinus carpio

Otolith

Section otolith

Asteriskus

Cyprinus carpio

Kesit otolit

Otolit

Yaş tayini

Issues

Article Details

Authors: Aykut Aydın | Nazmi Polat | Semra Saygın | Melek Özpiçak | Savaş Yılmaz

Publisher: Van Yuzuncu Yıl University

Journal: Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.28 Issue 1, pp.164-174

Document Type: Article

Publication Date: 4/2023

Document Language: Turkish

Document ID (Org No.): 2001287444

pISSN: 1300-5413

Issues

Authors:

Aykut Aydın | Nazmi Polat | Semra Saygın | Melek Özpiçak | Savaş Yılmaz

Publisher:

Van Yuzuncu Yıl University

Journal:

Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi Vol.28 Issue 1, pp.164-174

Document Type:

Article

Publication Date:

4/2023

Document Language:

Turkish

Document ID (Org No.):

2001287444

pISSN:

1300-5413