Bravo Edwis, Eslava Nora, González Leo
Escuela de Ciencias Aplicadas del Mar, Departamento de Acuacultura, Instituto de Investigaciones Científicas, Núcleo de Nueva Esparta, Universidad de Oriente, Venezuela.
Rev Biol Trop. 2009 Sep;57(3):699-706.
We analyzed the growth and natural mortality of the cují (Haemulon aurolineatum) in the southwest of Margarita Island, from July 2005 through June 2006. A sample of 1,378 males and 1,143 females collected from Boca del Río artisanal fishing vessels was analyzed. The common relation for both sexes was expressed by the equation P=0.038*L(2.87). From the frequency data, a preliminary asymptotic length (L(infinity)) was estimated applying the routine of Powell and Wetherall, and the coefficient of growth (k) through ELEFAN I using program FISAT II (FAO-ICLARM). The modal progression analysis was used, previous decomposition of the frequency of lengths according to Bhattacharya, and it optimized the estimations of L(infinity) and k according to the procedure of Gulland and Holt. The curve of growth in length was fit to the model of von Bertalanffy, and described an exponential curve, where growth accelerated until the two years of age. The rate of natural mortality was high (M = 1.15 year(-1)), probably from high predation.
我们分析了2005年7月至2006年6月玛格丽塔岛西南部cují（金带锯鳃石鲈，Haemulon aurolineatum）的生长和自然死亡率。对从博卡德尔里奥的个体捕捞船只收集的1378尾雄性和1143尾雌性样本进行了分析。两性的共同关系由方程P = 0.038 * L(2.87)表示。根据频率数据，应用鲍威尔和韦瑟罗尔的方法估计了初步渐近体长（L(∞)），并使用FISAT II（粮农组织-国际水生生物资源管理中心）程序通过ELEFAN I估计了生长系数（k）。使用模态进展分析，之前根据巴塔查里亚对体长频率进行了分解，并根据古兰和霍尔特的程序优化了L(∞)和k的估计。体长生长曲线拟合冯·贝塔朗菲模型，呈现指数曲线，生长在两岁前加速。自然死亡率很高（M = 1.15年⁻¹），可能是由于高捕食率。
