Candan Kamil, Caynak Elif Yıldırım, Gül Serkan, Kumlutaş Yusuf, Ilgaz Çetin, Dursun Cantekin
Department of Biology, Faculty of Science, Dokuz Eylül University, Buca, İzmir 35390, Türkiye.
Fauna and Flora Research and Application Center, Dokuz Eylül University, Buca, İzmir 35390, Türkiye.
Animals (Basel). 2024 Nov 23;14(23):3373. doi: 10.3390/ani14233373.
In this study, the life-history traits of are presented for the first time. A total of 27 samples (17 ♂♂ and 10 ♀♀) from Iğdır Province, Türkiye, were aged using skeletochronology. Student's -test was performed to compare mean differences in the variables between sexes. The relationships between age and snout-vent length (SVL) were determined through correlation. Growth patterns were estimated based on the von Bertalanffy equation. Lastly, survival rate and adult life expectancy were calculated for each sex. The mean SVL was 52.93 ± 1.28 mm in males and 46.23 ± 1.55 in females. The mean age was 4.88 ± 0.43 years and 3.20 ± 0.29 years for males and females, respectively. Correlation analysis revealed that age and SVL were highly correlated in males (r = 0.49) and females (r = 0.75). The growth coefficient (K) was found to be 0.28 ± 0.18 in females and 0.62 ± 0.25 in males. The survival rate was 57.14% in females and 75.38% in males. The adult life expectancy was calculated at 2.83 years and 4.56 years in females and males, respectively. To sum up, males were larger than females, indicating male-biased sexual size dimorphism (SDI: -0.144). In addition, males had a greater mean age and longevity (max male age: 8 yr; max female age: 5 yr).
在本研究中，首次呈现了[物种名称未给出]的生活史特征。从土耳其伊兹密尔省共采集了27个样本（17只雄性和10只雌性），采用骨骼年代学方法进行年龄测定。进行了学生t检验以比较两性之间变量的平均差异。通过相关性分析确定年龄与吻肛长度（SVL）之间的关系。基于冯·贝塔朗菲方程估计生长模式。最后，计算了每种性别的存活率和成年预期寿命。雄性的平均SVL为52.93±1.28毫米，雌性为46.23±1.55毫米。雄性的平均年龄分别为4.88±0.43岁，雌性为3.20±0.29岁。相关性分析表明，年龄与SVL在雄性（r = 0.49）和雌性（r = 0.75）中高度相关。发现雌性的生长系数（K）为0.28±0.18，雄性为0.62±0.25。雌性的存活率为57.14%，雄性为75.38%。成年预期寿命在雌性中计算为2.83岁，在雄性中为4.56岁。总之，雄性比雌性大，表明存在雄性偏向的两性异形（SDI：-0.144）。此外，雄性的平均年龄和寿命更长（雄性最大年龄：8岁；雌性最大年龄：5岁）。
