Age and growth parameters of red bandfish (Cepola rubescens L., 1766) in İzmir Bay
Küçük Resim Yok
Tarih
2001
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Kurdela balıklarının yaş ve büyüme parametreleri, 1996 Ocak ve 1997 şubat arasında izmir Körfezinden toplanan örneklerden tahmin edilmiştir. Yaşlara ait ortalama boylar, otolit okunarak; büyüme parametreleri ise Von Bertalanffy denklemi ile: Dişiler için, L?=78.48 cm, K=0.17 yıl-1, to=0.0972 yıl , W?=110.00 g, K=0.10 yıl-1, to=0.1033 yıl , erkekler için, L?= 83.22 cm, K=0.16, to=0.0888 yıl, W?=129.83, K=0.0818 yıl-1, to=-0.4117 yıl olarak hesaplanmıştır. Boy-ağırlık ilişkileri erkek ve dişiler için hesaplanm ış ve sırası ile W=0.029154 L1.38434 ve W=0.07723 L1.11217 değerleri bulunmuştur. Gözlenen ortalama total boy ve aığrlıklar ile teorik olarak hesaplanan değerler uyum içindedir. Erkek populasyonunda dört, dişi populasyonunda ise beş yaş grubu ayırt edilmi ştir.
The age and growth parameters of red bandfish (Cepola rubescens L.,1766) were determined from the specimens collected in İzmir Bay (Aegean Sea) between January 1996 and February 1997. Mean length at age data from otolith readings were used to estimate the growth parameters of the von Bertalanffy equation: for females, $L_{infty}$=78.48 cm, K=0.17 $y^{-1}$, $t_{0}$=0.0972 y, $W_{infty}$=110.00 g, K=0.10 $y^{-1}$, to=0.1033 y and for males $L_{infty}$= 83.22 cm, K=0.16 $y^{-1}$, to=0.0888 y ; $W_{infty}$=129.83, K=0.0818 $y^{-1}$, $t_{0}$=-0.4117 y. Length-weight relationships was estimated for males and females to be W=0.07723 $L^{1.11217} and W=0.029154 $L^{1.38434}$, respectively. The observed mean total length and weight were in accord with the theoretical estimated values. Four distinct age groups in the population of males and five age groups in females were identified.
The age and growth parameters of red bandfish (Cepola rubescens L.,1766) were determined from the specimens collected in İzmir Bay (Aegean Sea) between January 1996 and February 1997. Mean length at age data from otolith readings were used to estimate the growth parameters of the von Bertalanffy equation: for females, $L_{infty}$=78.48 cm, K=0.17 $y^{-1}$, $t_{0}$=0.0972 y, $W_{infty}$=110.00 g, K=0.10 $y^{-1}$, to=0.1033 y and for males $L_{infty}$= 83.22 cm, K=0.16 $y^{-1}$, to=0.0888 y ; $W_{infty}$=129.83, K=0.0818 $y^{-1}$, $t_{0}$=-0.4117 y. Length-weight relationships was estimated for males and females to be W=0.07723 $L^{1.11217} and W=0.029154 $L^{1.38434}$, respectively. The observed mean total length and weight were in accord with the theoretical estimated values. Four distinct age groups in the population of males and five age groups in females were identified.
Açıklama
Anahtar Kelimeler
Biyoloji
Kaynak
Turkish Journal of Zoology
WoS Q Değeri
Scopus Q Değeri
Cilt
25
Sayı
2
