The Growth of Pomatomus saltatrix (Pomatomidae) from the Southeastern Coast of the Mediterranean Sea

IF 0.5 4区生物学 Q4 FISHERIES

Journal of Ichthyology Pub Date : 2024-03-27 DOI:10.1134/s0032945224700061

W. Hmila, W. Khoufi, A. Abdaoui, K. Mahé, C. Jabeur

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Abstract

Growth parameters of any species are fundamental for eco-biological and dynamic studies. Since the quality of these parameters’ estimations affect species stock assessment directly, growth analysis should be improved. Many functions are used for growth modeling, but the most commonly used model in marine stock assessment is the von Bertalanffy growth function. In order to enhance the estimation of growth parameters of Pomatomus saltatrix (Linnaeus, 1766), the von Bertalanffy growth function was determined via the Markov Chain Monte Carlo. In total, 288 individuals (158 females, 103 males, and 27 with undetermined sex) were collected during 12 months, from July 2020 to June 2021, along the eastern coast of Tunisia in the Mediterranean Sea (Monastir, Sousse and Mahdia). The individual ageing data was obtained from the examination of whole sagittal otoliths with binoculars under reflected light. The length–weight relationships (total weight (TW) ± 0.01 g; total length (TL) ± 0.1 cm) were TW = 0.011 × TL^2.974 (r² = 0.952, p < 0.05) for females, TW = 0.014 × TL^2.897(r² = 0.926, p < 0.05) for males and TW = 0.093 × TL^2.205 (r² = 0.819, p < 0.05) for undetermined sex. The adjusted with the Markov Chain Monte Carlo von Bertalanffy growth parameters were TL_∞ = 31.63 ± 1.32 cm, K = 0.46 ± 0.04 year^–1 for females and TL_∞ = 30.33 ± 1.31 cm, K = 0.49 ± 0.05 year^–1 for males. The gathered biological information will be useful for an ulterior stock assessment and fishery management of P. saltatrix in Tunisian waters.

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地中海东南部海岸的 Pomatomus saltatrix（Pomatomidae）的生长情况

摘要任何物种的生长参数都是生态生物学和动态研究的基础。由于这些参数估计的质量直接影响物种种群评估，因此应改进生长分析。用于生长建模的函数很多，但海洋种群评估中最常用的模型是 von Bertalanffy 生长函数。为了加强对 Pomatomus saltatrix (Linnaeus, 1766) 生长参数的估计，通过马尔可夫链蒙特卡罗确定了 von Bertalanffy 生长函数。在 2020 年 7 月至 2021 年 6 月的 12 个月期间，在地中海突尼斯东部沿岸（莫纳斯提尔、苏塞和马赫迪亚）共采集了 288 个个体（158 个雌性个体、103 个雄性个体和 27 个性别未定个体）。个体年龄数据是在反射光下用双筒望远镜检查整个矢状耳石获得的。长度-重量关系（总重量 (TW) ± 0.01 克；总长度 (TL) ± 0.1 厘米）为：雌性 TW = 0.011 × TL2.974 (r2 = 0.952, p < 0.05)，雄性 TW = 0.014 × TL2.897 (r2 = 0.926, p < 0.05)，性别未定的 TW = 0.093 × TL2.205 (r2 = 0.819, p < 0.05)。经马尔可夫链蒙特卡洛冯-贝塔朗菲生长参数调整后，雌鱼的 TL∞ = 31.63 ± 1.32 厘米，K = 0.46 ± 0.04 年-1；雄鱼的 TL∞ = 30.33 ± 1.31 厘米，K = 0.49 ± 0.05 年-1。收集到的生物信息将有助于对突尼斯水域的 P. saltatrix 进行进一步的种群评估和渔业管理。

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来源期刊

Journal of Ichthyology Multiple-

CiteScore

1.00

自引率

28.60%

发文量

期刊介绍： Journal of Ichthyology is an international peer-reviewed journal published in collaboration with the Russian Academy of Sciences. It covers original studies in fish taxonomy, evolution, molecular biology, morphology, species diversity, zoological geography, genetics, physiology, ecology, behavior, reproduction, embryology, invasions, and protection. Some problems of applied ichthyology are also covered. The journal welcomes manuscripts from all countries in the English or Russian language.