C. Fassatoui, Leila Hmida, A. Jenhani, M. Romdhane
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引用次数: 1
摘要
基于长度、体重和年龄数据,我们研究了2007年在突尼斯北部和南部海岸季节性商业采集的常见潘多拉Pagellus erythrinus的异速生长参数。利用370个标本(长度14 ~ 27.5 cm)在季节尺度上评估异速生长变化。长度-权重关系的斜率b值(回归系数)在2.494 ~ 3.237之间变化,(大致)表现为等距-负异速生长模式。方差分析表明,北方种群的异速生长关系似乎受季节和性别的影响,而南方种群的异速生长关系似乎只有季节有强烈的影响。北方和南方样品的von Bertalanffy生长参数分别为L∞= 34.076和28.017 cm, k = 0.153和0.150/年,t0 = - 1.922和- 3.961年。
Length-weight relationship and growth parameters of the commercial fish Pagellus erythrinus (Linnaeus, 1758) (Actinopterygii: Sparidae) from northern and southern Tunisia
Abstract Based on length, weight, and age data, we examined allometry and growth parameters for common pandora, Pagellus erythrinus, commercially collected seasonally from northern and southern Tunisian coasts in 2007. A total of 370 specimens (14–27.5 cm in length) were used to assess the allometric variation at seasonal scales. The slope b values (regression coefficient) of the length-weight relationship varied between 2.494 to 3.237, indicating (roughly) an isometric to negative allometric growth pattern. The allometric relationship, as a proxy for fish condition, seems to be affected by seasons and sex in the northern population, while only seasons seem to have a strong effect in the southern population, as indicated by ANOVA. The von Bertalanffy growth parameters were identified at L∞ = 34.076 and 28.017 cm, k = 0.153 and 0.150/year, and t0 = −1.922 and −3.961 years for the northern and southern sample, respectively.
Biological LettersAgricultural and Biological Sciences-Agricultural and Biological Sciences (all)
自引率
0.00%
发文量
0
审稿时长
52 weeks
期刊介绍:
It covers a wide spectrum of biological disciplines, including animal science and zoology, general biochemistry, botany, and ecology. We also encourage submission of manuscripts related to conservation biology and wildlife management.