Age, growth, reproductive biology and feed of the common guitarfish (Rhinobatos rhinobatos Linnaeus, 1758) in İskenderun Bay, the eastern Mediterranean Sea
Age, growth, reproductive biology and feed of the common guitarfish (Rhinobatos rhinobatos Linnaeus, 1758) in İskenderun Bay, the eastern Mediterranean Sea
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地中海东部伊斯肯德伦湾普通吉他鱼（Rhinobatos rhinobatos Linnaeus，1758）的年龄、生长、繁殖生物学和饲料
DOI：
10.1016/j.fishres.2006.12.002
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Pınar Işmen
中科院分区：
文献类型：
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作者：
A. İşmen;Çiğdem Yığın;Pınar Işmen
利用地中海东部İskenderun湾的225个样本，研究了普通吉他鱼（Rhinobatos Rhinobatos）的年龄、生长、繁殖和摄食情况。雌性占43%，雄性占57%。雌鱼全长22.2 ~ 81cm，雄鱼全长22 ~ 120cm。总长度-权重关系为W=0.0036×TL2.93。年龄数据来自vertabrae读数，用于估计von Bertalanffy方程的生长参数：L∞=128.6cm， K=0.29, t0=−0.89。最大年龄为5岁。普通吉他鱼的分娩时间在夏季（5 - 9月）。发育胎儿平均TL为25.7cm TL，平均体重为48.5g。雄鱼成熟期为68cm，雌鱼成熟期为69cm。胃中主要含甲壳类。
The age, growth, reproduction, and feeding of common guitarfish (Rhinobatos rhinobatos) were studied using 225 specimens from the İskenderun Bay, (eastern Mediterranean). Females made up 43% and males 57% of the individuals. The total length of females ranged from 22.2 to 81cm, and of males from 22 to 120cm. The total length–weight relationships was W=0.0036×TL2.93. The age data, derived from vertabrae readings, were used to estimate the growth parameters of the von Bertalanffy equation: L∞=128.6cm, K=0.29, t0=−0.89. The maximum age was 5 years. The parturition time of common guitarfish occurred in summer (from May to September). The mean TL and mean weight of developed fetuse were 25.7cm TL and 48.5g, respectively. Males matured at 68cm TL and females at 69cm TL. The stomachs contained mainly Crustacea.