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Precision of Age Estimates Obtained from Five Calcified Structure for Wels Catfish, Silurus glanis    
Yazarlar
Doç. Dr. Ramazan YAZICI Doç. Dr. Ramazan YAZICI
Kırşehir Ahi Evran Üniversitesi, Türkiye
Prof. Dr. Mahmut YILMAZ Prof. Dr. Mahmut YILMAZ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Doç. Dr. Okan YAZICIOĞLU Doç. Dr. Okan YAZICIOĞLU
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
Abstract: In this study, vertebrae, otoliths (asteriscus and lapillus), sectioned lapillus and pectoral fin rays were evaluated for age determination of Silurus glanis L., 1758 inhabiting Siddikli Dam Lake. All calcified structures showed the variable annual ring formation. Ages obtained from calcified structures were compared using the percentage of agreement (PA), average percentage of error (APE), and coefficient of variation (CV). Sectioned lapillus showed the clearest annulus formation and highest PA (76.4%) between readings, followed by asteriscus (43.9%), whole lapillus (40.5%), vertebrae (36.0%) and pectoral fin ray (33.3%). When sectioned lapillus compared to other structures, there were high ages obtained from this structure. Especially, the ages from the whole lapillus were lower than sectioned lapillus. Also, ages obtained from pectoral fin ray were the closer to sectioned lapillus ages than the other calcified structures. Owing to the highest PA, lowest APE and CV, sectioned lapillus was recommended as the most reliable calcified structure for age determination of S. glanis. Our findings can be used for effective fisheries management and determination of the biological characteristics of wels catfish.
Anahtar Kelimeler
accuracy | age determination | APE | sectioned lapillus | Siddikli Dam Lake
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Ichthyology
Dergi ISSN 0032-9452
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili Türkçe
Basım Tarihi 01-2021
Cilt No 61
Sayı 3
Sayfalar 452 / 459
Doi Numarası 10.1134/S0032945221030152
Makale Linki http://dx.doi.org/10.1134/s0032945221030152