Sex-specific growth patterns of Coptodon zillii: a comparative evaluation of nonlinear growth models using AICc

IF 3.1 Q2 MULTIDISCIPLINARY SCIENCES

Beni-Suef University Journal of Basic and Applied Sciences Pub Date : 2026-02-25 DOI:10.1186/s43088-026-00746-x

Khaled Y. AbouelFadl, Mahmoud A. H. Kassem, Sara Samey, Kélig Mahé

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引用次数: 0

Abstract

Background

This study aimed to accurately estimate the growth of Coptodon zillii by comparatively evaluating six nonlinear growth models using the corrected Akaike Information Criterion (AICc), Bayesian Information Criterion (BIC), ΔAIC (difference in AICc between each model and the best model), and AIC weights to evaluate relative model support.

Results

Model selection revealed that the optimal growth function differed by sex, confirming clear sexual dimorphism. The "vbt0p" model is the best fit for males, females, and combined sexes. The nonlinear mixed-effects model showed strong overall support with perfect AIC weights. Models such as Gompertz and Logistic had moderate support, while the Schnute model consistently performed poorly.

Conclusions

Findings highlight the importance of sex-specific growth considerations for sustainable fisheries management in Lake Nasser.

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紫齿象性别特异性生长模式：基于AICc的非线性生长模型的比较评价

本研究采用修正后的赤池信息准则（Akaike Information Criterion, AICc）、贝叶斯信息准则（Bayesian Information Criterion， BIC）、ΔAIC（各模型与最佳模型之间的AICc差值）和AIC权值对6种非线性生长模型进行比较评价，以准确估计紫斑螯虾的生长。结果模型选择显示，最佳生长功能因性别而异，证实了明显的性别二态性。“vbt0p”模型最适合男性、女性和两性组合。非线性混合效应模型具有较好的AIC权值，具有较强的整体支持。Gompertz和Logistic等模型得到了中等程度的支持，而Schnute模型一直表现不佳。结论：研究结果强调了性别特异性生长因素对纳赛尔湖可持续渔业管理的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Beni-Suef University Journal of Basic and Applied Sciences MULTIDISCIPLINARY SCIENCES-

CiteScore

2.60

自引率

0.00%

发文量

期刊介绍： Beni-Suef University Journal of Basic and Applied Sciences (BJBAS) is a peer-reviewed, open-access journal. This journal welcomes submissions of original research, literature reviews, and editorials in its respected fields of fundamental science, applied science (with a particular focus on the fields of applied nanotechnology and biotechnology), medical sciences, pharmaceutical sciences, and engineering. The multidisciplinary aspects of the journal encourage global collaboration between researchers in multiple fields and provide cross-disciplinary dissemination of findings.