Pérez-Palafox Xchel Aurora, Morales-Bojórquez Enrique, Aguirre-Villaseñor Hugo, Cruz-Escalona Víctor Hugo
Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. Instituto Politécnico Nacional S/N, Col. Playa Palo de Sta. Rita, La Paz 23096, Baja California Sur, Mexico.
Centro de Investigaciones Biológicas del Noroeste, Av. Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita, La Paz 23096, Baja California Sur, Mexico.
Animals (Basel). 2022 Jan 5;12(1):120. doi: 10.3390/ani12010120.
The size at which a certain fraction of a fish population reaches sexual maturity is an important parameter of life history. The estimation of this parameter based on logistic or sigmoid models could provide different ogives and values of length at maturity, which must be analyzed and considered as a basic feature of biological reproduction for the species. A total of 305 individuals of () were obtained from artisanal fisheries in the Bahía de La Paz, Mexico. For the organisms sampled, sexes were determined and total length (TL) in cm was measured from October 2013 to December 2015. The results indicated that the females were larger, ranging from 48.5 cm to 84 cm TL, while males varied from 41.5 cm to 58.5 cm TL. The sex ratio was dominated by males ranging from 45-55 cm TL, while females were more abundant from 60 to 85 cm TL. Mature females were present all year long, exhibiting a continuous annual reproductive cycle. The length at maturity data were described by the Gompertz model with value of 55.87 cm TL. The comparison between models, and the model selection between them, showed that the Gompertz model had maximum likelihood and smaller Akaike information criterion, indicating that this model was a better fit to the maturity proportion data of .
鱼类种群中达到性成熟的一定比例时的大小是生活史的一个重要参数。基于逻辑斯蒂或S形模型对该参数进行估计可能会得出不同的累积分布曲线和成熟体长值，必须将其作为该物种生物繁殖的一个基本特征进行分析和考量。从墨西哥拉巴斯湾的个体渔业中总共获取了305个（物种名缺失）个体。对于所采样的生物，确定了性别，并在2013年10月至2015年12月期间测量了以厘米为单位的全长（TL）。结果表明，雌性个体更大，全长范围为48.5厘米至84厘米，而雄性个体的全长范围为41.5厘米至58.5厘米。在全长45 - 55厘米范围内雄性占主导地位，而在全长60至85厘米范围内雌性更为丰富。成熟雌性全年都有，呈现出连续的年度繁殖周期。成熟体长数据由冈珀茨模型描述，成熟体长值为55.87厘米。模型之间的比较以及它们之间的模型选择表明，冈珀茨模型具有最大似然性和较小的赤池信息准则，表明该模型更适合（物种名缺失）的成熟比例数据。
